2928 results about "Expansion joint" patented technology

A riser card module includes a frame body, a carrier plate connected to the frame body for abutment against first surfaces of positioning plates of fixing brackets of expansion cards, a riser card disposed on the frame body and having a plurality of expansion slots for insertion therein of the expansion cards, respectively, and a limiting unit rotatable relative to the carrier plate about an axial direction which is perpendicular to a longitudinal direction of the carrier plate for abutment against second surfaces of the positioning plates of the fixing brackets of the expansion cards so as to restrict movement of the expansion cards relative to the riser card.

An ergonomically designed pipette tip that can be securely mounted to a barrel of a pipetter yet is designed to substantially reduce the axial force necessary to install and eject the pipette tip from the pipetter. The ergonomic pipette tip includes molded-in expansion joints and/or the addition of a second elastic material to decrease the amount of force necessary to radially expand the entrance to the pipette tip when the pipetter barrel is guided and stability oriented towards the sealing region of the pipette tip. Also disclosed is an ergonomic adapter with similar features as the tip that can also be mounted to the barrel of the pipetter and attached to a standard pipette tip or a combination of tips. Therefore, the relatively small axial forces necessary for mounting and ejecting the new ergonomic tip and adapter can substantially help to reduce the hand and thumb forces, that due to repeated use, will sometimes result in repetitive stress injury.

An adjustable assembly for a bicycle includes a first support having an interior surface and a second support slidably positioned within at least a portion of the first support. One of the first support and the second support is adapted to attach to a first bicycle portion, and the other of the first support and the second support is adapted to attach to a second bicycle portion. Further, the second support comprises an expansion portion configured to be moved between an expanded position and a retracted position. The expansion portion is configured to engage the interior surface of the first support when the expansion portion is in an expanded position. In addition, the first support is configured to be selectively moved relative to the second support when the expansion portion is permitted to assume a retracted position. In some embodiments, the first bicycle portion comprises a bicycle frame and the second bicycle portion comprises a bicycle saddle. In other arrangements, the first bicycle portion comprises a fork assembly and the second bicycle portion comprises a handlebar assembly.

A fire resistant and water resistant expansion joint system comprises a compressed lamination of fire retardant infused open celled foam, one coat of an elastomeric waterproofing or water resistant material on the lamination, and another coat of an intumescent material on an opposing surface of the lamination, thereby providing fire resistance in one direction and water resistance in the opposite direction. The intumescent material may be further coated with a similar elastomeric material, thereby providing fire resistance in one direction and water resistance in both directions. In the alternative, the compressed lamination may comprise first and second opposing layers of intumescent material thereon each having a respective layer of elastomeric material to provide both water resistance and fire resistance in both directions.

An expansion joint system includes: a core; and a layer of an elastomer disposed on the core. The core and the layer of elastomer disposed thereon form an elongated section, the elongated section configured to be oriented vertically between substantially coplanar substrates. The expansion joint system further includes a termination section located at one end of the elongated section and comprising a flared end forming an angle with the elongated section and configured to direct fluid and/or particles and/or solvents away from the expansion joint system.

A sealing device for sealing punctures in blood vessel walls including a flange connected to a flexible stem having an expansion portion in it. The flexible stem is adapted to be accommodated inside a delivery tube. The delivery tube further includes a hand-hold for ease of handling. The sealing device may further include a loader and a cutter. The flange and flexible stem are preferably constructed of a biodegradable material that has a tensile strength, rigidity, memory and other physical qualities similar to medical grade silicone. The resilient transverse expansion portion expands when deployed beyond the delivery tube in the tissue tract to create a frictional interface with the interior surface of the tissue tract to resist displacement of the flexible stem from a desired location in the tissue tract. The flexible stem also includes a flange at the distal end of the flexible stem to seal the puncture when the flexible stem is deployed.

A fire and/or water resistant expansion joint system for installation between substrates of a tunnel. The system includes a coating applied at a predetermined thickness to the substrates and a fire and water resistant expansion joint. The expansion joint includes a core and a fire retardant infused into the core. The core is configured to define a profile to facilitate the compression of the expansion joint system when installed between the substrates. The coating and the fire and water resistant expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.

A water resistant expansion joint system for installation into a building joint in vertical and horizontal configurations is designed such that it can be used for either an inside or outside corner. The system comprises open celled foam having a water-based acrylic chemistry infused therein. A layer of an elastomer is disposed on the open celled foam and is tooled to define a profile to facilitate the compression of the expansion joint system when installed between coplanar substrates. The system is delivered to a job site in a pre-compressed state ready for installation into the building joint.

A navigation apparatus (10) configured for removably coupling with and providing navigational capabilities to a portable, handheld computing device (12). The navigation apparatus (10) includes a navigation receiver (26) for receiving navigation signals from a plurality of sources; a processor (24) coupled with the navigation receiver (26) for determining a location of the navigation apparatus (10) as a function of the received navigation signals; and an interface/connector (44). The interface/connector (44) is either a Secure Digital slot connector or a Compact Flash slot connector. Location data stored in the navigation apparatus (10) and data representative of the location determined by the navigation apparatus (10) may be delivered from the processor (24) to the handheld computing device (12) so that it may be displayed and used by a user of the device (12).

An apparatus and method for forming or repairing a wellbore casing, a pipeline, or a structural support. An expandable tubular member is radially expanded and plastically deformed by an expansion cone that is displaced by hydraulic pressure. Before or after the radial expansion of the expandable tubular member, a sliding sleeve valve within the apparatus permit a hardenable fluidic sealing material to be injected into an annulus between the expandable tubular member and a preexisting structure.

A fire resistant and water resistant expansion joint system comprises a core; and a fire retardant infused into the core. The core infused with the fire retardant is configured to define a profile to facilitate compression of the fire and water resistant expansion joint when installed between substantially coplanar substrates.

The present disclosure relates generally to systems for providing a durable water-resistant and fire-resistant foam-based seal in the joint between adjacent panels. A fire-resistant and water-resistant expansion joint seal is provided which includes one or more foam members and a plurality of intumescent members interspersed within the foam member or members to provide a spring recovery force and fire resistance.

A fire and water resistant, integrated wall and roof expansion joint seal system includes an expansion joint seal for a structure. The seal includes a central portion having an underside and at least one central chamber disposed around a centerline, a first flange portion extending outwardly from the centerline and a second flange portion extending outwardly from the centerline in a direction opposite the first flange portion. The system further includes a joint closure. The joint closure includes a core and a layer of a water resistant material disposed on the core. The joint closure further includes an end portion configured to match and integrate with the underside of the central portion to form the watertight, integrated wall and roof expansion joint seal system. A fire retardant material is included in the core in an amount effective to pass testing mandated by UL 2079, and the core with the fire retardant material therein is configured to facilitate compression of the core when installed between the first substrate and the second substrate by repeatedly expanding and contracting to accommodate movement of the first substrate and the second substrate; and the core with the fire retardant material included therein is configured to pass the testing mandated by UL 2079. Movement of one or both of the first substrate and the second substrate causes a response in the central portion to maintain the seal.

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

A compression seal for concrete expansion joints is extruded as a one-piece unit from rubber-like material. The compression seal includes a compressible sealing portion and a pair of load-bearing wings that extend laterally from the compressible sealing portion. The one-piece design facilitates easy installation of the compression seal in an expansion joint. In use, the compressible sealing portion is inserted the expansion joint. Simple zipper-like motion may be used to press fit the compressible portion into the expansion joint. The lateral load-bearing wings are bonded to concrete surfaces adjoining the expansion joint to hold the compressible sealing portion in place.

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

An expansion joint seal system which includes intumescent to protect uncoated edges of substrates. A fire rated compressed expansion joint sealant is provided having an intumescent proximate, but below the water-resistant top of the fire-retardant foam, so that when exposed to fire, the intumescent expands to protect the exposed vertical surface of the adjacent concrete substrate. The end of the concrete is therefore protected in a manner which does not require joint overlap between the horizontal fire resistant coating and the compressible sealant.

The invention relates to a special additive for an underwater undispersed shrinking-free grouting material, which consists of flocculant, early strength agent, water reducing agent, air-entraining agent and active admixture and is prepared from the following raw materials by weight: 4 to 9 percent of the flocculant, 15 to 32 percent of the water reducing agent, 9 to 25 percent of expansion agent, 8 to 30 percent of the early strength agent, 0.04 to 0.7 percent of the air-entraining agent, and 18 to 35 percent of the active admixture. The special additive for the underwater undispersed shrinking-free grouting material can maintain the large fluidity and the micro expansibility of the grouting material, ensure the underwater direct grouting construction without dispersion and segregation, simplify an underwater sealing repairing process, save labor force and avoid environmental pollution to the nearby water area, and has good development prospect.

A polyurethane caulking material for expansion joints of a ballastless track of a high speed railway is disclosed. The caulking material is prepared from two parts A and B. the part A is composed of the following raw materials, by weight, 100 parts of isocyanate and its prepolymer, 10-150 parts of a plasticizer, 5-150 parts of a solid filler, 1-20 parts of a diluents, 1-5 parts of an adhesion promoter, 0-10 parts of a thixotropic agent and 1-3 parts of a water-removal agent. The part B is composed of the following raw materials, by weight, 10-20 parts of modified polyhydric alcohol, 1-5 parts of a diluent, 2-30 parts of a plasticizer, 5-30 parts of a solid filler, 0-5 parts of a thixotropic agent, 0.5-2 parts of an antifoaming agent, 0.1-1 part of an anti-aging agent and 0-0.01 part of a catalyst. The mass ratio of the part A to the part B is 4:1-10:1. The polyurethane caulking material has advantages of good low-temperature curing performance, high displacement capability, low tensile modulus, good bond property and excellent endurance quality and fatigue resistance, and is suitable for expansion joints of a ballastless track of a high speed railway as well as expansion joints of roads and airfield runways.

The invention is a foam blend comprising a polyethylene, polypropylene, and a rubber component. The foam blend has improved flexibility at sub-zero temperatures without sacrificing the desirable physical characteristics that are commonly associated with polypropylene foams. As a result, the foam is particularly useful for producing articles that require flexibility at temperatures approaching and below 0° F. In some embodiments, the foam blend may have at least 50 percent by weight polypropylene and up to about 45 percent by weight polyethylene. The rubber component in the blend may be from about 3 to 10 weight percent, with 5 weight percent being particularly useful. The foam blends are suitable for producing a variety of articles where it is desirable to have improved flexibility at cold temperatures. In a particularly useful application, the foam blend may be used in concrete expansion joint fillers or totes.

The invention relates to an outer parameter calibration device and calibration method of a laser radar and a visual camera. The device comprises a support with universal wheels, a telescopic sleeve, an expansion link inserted into the upper end of the telescopic sleeve and of which the position is fixed by an expansion link fixing nut, a ball cup fixed at the upper end of the expansion link, a ball support connected with the call cup and a calibration plate connected with the ball support arranged in sequence; the calibration plate is a circular black plastic plate with a smooth surface, and acircular hole is formed closed to the edge position of the circular black plastic plate; square slots are milled in the surface of the calibration plate according to a checkerboard, and white squarealuminum alloy sheets are embedded into the slots, so that the aluminum alloy sheets and the calibration plate are formed into a rectangular black-white checkerboard form with the smooth surface. Compared with the prior art, the outer parameter calibration device and calibration method have the advantages of being practical, simple, convenient and strong in universality.

A system which creates a disable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support, to the rib from below, and/or cores of differing compressibilities.

A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.

The invention discloses a telescopic bidirectional loading and unloading conveyor, which belongs to the field of storage and logistics. The telescopic bidirectional loading and unloading conveyor comprises a base joint, a primary expansion joint, a secondary expansion joint, a belt conveying mechanism, a telescopic mechanism, and an elevator mechanism, wherein a front pedestal and a back pedestalare respectively arranged below the two ends of the base joint, and the back part of the base joint is hinged on the back pedestal; a lifting oil cylinder of the elevator mechanism is hinged on the front pedestal and a piston rod of the elevator mechanism is hinged on the front part of the base joint; the primary expansion joint is nested in the cavity of the base joint and can expand and contract along the base joint under the driving of the primary expansion joint; the secondary expansion joint is nested in the cavity of the primary expansion joint and can expand and contract along the primary expansion joint; the belt conveying mechanism comprises a conveying motor, a belt driven roller and a conveying belt; turnabout drums are respectively arranged at the front and back ends of the base joint, the primary expansion joint and the secondary expansion joint; and the conveying belt can be orderly wrapped on the belt driven roller and each turnabout drum to form a sealed conveying ring. The loading and unloading conveyor has the advantages of bidirectional conveying, convenient move, adjustable conveying height and distance, safety and reliability.

The invention discloses a digital controlled lathe capable of conducting automatic loading and suitable for shaft parts. The digital controlled lathe comprises a lathe body, wherein the lathe body is provided with a hollow spindle, a sliding rail is arranged on the lathe body in the front and back horizontal direction, a knife rest is arranged on the sliding rail in a slidable manner, the front end of the hollow spindle is coaxially and fixedly connected with a hollow chuck, the knife rest is provided with an electromagnetic attraction mechanism, and an automatic loading device is arranged behind the lathe body; and the automatic loading device comprises a work bin base, the work bin base is fixedly connected with a work bin support, the work bin support is fixedly connected with a storage box, a corrugated pipe expansion joint and an unloading box from top to bottom in sequence, one vibration motor is arranged on the left outer wall of the corrugated pipe expansion joint, one vibration motor is arranged on the right outer wall of the corrugated pipe expansion joint, a stock stop is arranged on the lower portion of the unloading box, and the upper surface of the work bin base is fixedly connected with a material pushing base located under the unloading box. The digital controlled lathe is easy and convenient to operate, high in automation degree and stable in work, and can achieve automatic loading, effectively shorten the auxiliary time and improve the working efficiency.

A waste heat recovery apparatus includes a Rankine cycle (20) which includes a heater (22) for heating an operation fluid by waste heat from a heat-generating device (10), an expansion unit (23) for converting energy of expansion of the operation fluid flowing out from the heater (22) into mechanical energy, and a condenser (24) for condensing and liquefying the expanded operation fluid, a temperature detector (206) for detecting the temperature of the operation fluid on the inlet side of the expansion unit (23), a pressure detector (207) for detecting inlet-side pressure (Pex_in) of the expansion unit (23), a pressure detector (208) for detecting outlet-side pressure (Pex_out) of the expansion unit (23), and control units (30, 32). The control units control a command rotational speed (N_id) of the expansion unit (23) based on superheated degree information (SH) at the inlet of the expansion unit obtained from the operation fluid temperature and the inlet-side pressure, and pressure information (P) in which the outlet-side pressure (Pex_out) is considered.

Biodegradable molded articles; a process for producing the same: and compositions for foam molding packed in a packaging film bag to be used in the production. A bowl-type container(10a), which is one of the biodegradable molded articles as described above, consists of a bowl body(11a) comprising starch as the main component and a coating film(12) having at least hydrophobic properties and comprising a biodegradable plastic as the main component which is bonded to the surface of the bowl body(11a). This bowl body(11a) is formed by steam-foaming molding a material to be molded which is in the form of a slurry or a dough containing starch and water. The coating film(12) is closely bonded to the surface of the bowl body(11a) either directly or via an adhesive layer. Compositions for foam molding packed in such packaging film bags can be easily stored and molded.

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

The invention relates to a plane parallel mechanism of a reconfigurable high-speed belt restriction branched chain with flexible form and prolongation manipulator device. A plane parallel mechanism of belt restriction branched chain comprises an output stage wherein the two ends of the output stage are connected with the connecting rod link and the other end of the connecting rod is mounted on the guide rail, an expansion link mounted on the output stage, the other end of the expansion link is provided with slipper which is embedded in the rail.