71results about How to "Positive engagement" patented technology

An open end of a standard pipe fitting is enlarged in diameter to coaxially receive an O-ring and a retainer having a cylindrical surface. A plurality of locking teeth project from the cylindrical surface and are engageable with both the inner surface of the fitting and an outer surface of a pipe end inserted coaxially into the fitting open end. Each of the locking teeth have oppositely disposed edges facing obliquely inwardly and outwardly to engage both the pipe end and the fitting and resisting motion of the pipe end relatively to the fitting. In an alternate embodiment, a first plurality of teeth each have an edge facing obliquely inwardly of the fitting to engage the pipe end and resist motion tending to withdraw the pipe end from the fitting. A second plurality of teeth each have an edge facing obliquely outwardly of the fitting and resist motion tending to withdraw the retainer from the fitting.

The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54).

It is proposed that the application tool (18, 32, 186, 188) be actively connectable to the carrier device (14, 16, 182, 184) via at least one detent element (24, 26, 190, 192, 194, 196, 198, 200, 302) movable against a spring force that snaps into place in an operating position of the application tool (18, 32, 186, 188) and immobilizes the application tool (18, 32, 186, 188) with positive engagement.

A system and method for implanting a wrap on a patient's heart or other organ provides a wrap having finger-engagement members typically defining loops that encompass all or a substantial portion of the fingers of a surgeon's treatment hand. The loops retain the fingers to the wrap during implant, and enable the fingers to be detached after the procedure is complete. The loops can be detachable from the wrap after the procedure is completed or can be formed to remain with the wrap.

A positive locking fitting assembly is provided for interconnecting two adjacent structures, such as two modular components of an aircraft. The fitting assembly includes a pair of couplers which attach to the respective modular components, and a transfer tube which interconnects the couplers. Each coupler has a positive locking feature which prevents inadvertent uncoupling during operation. A plurality of redundant seals are incorporated throughout the construction of the fitting assembly which ensures a leak proof relationship not only between the joined pair of modular components, but also through the structure of the elements of the fitting assembly itself.

A tilt adjustment assembly for a motorized reclining chair having a base frame adapted for rest on a floor surface. A seat and a back articulated support linkage are interconnected together for displacement of a seat and back of a reclining chair. An intermediate frame is mounted on the base frame through spring attachments, whereby to impart a rocking motion to the chair. A pair of foot rest linkages interconnect each of two of the said seat articulated support linkages to a foot rest plate. The tilt adjustment assembly comprises a motor-operated actuating rod secured at a free end to a sliding member to guidingly displace that member along a straight axis in a fixed plane and to any desired position along the axis. A pivotal link arm is pivotally secured at one end of the sliding member. A transverse linkage securing rod is secured to a second end of the pivotal link arm and extends transversely thereto. The transverse securing rod has opposed ends pivotally connected to an intermediate link arm of a respective one of the pair of foot rest linkages. Tensioning springs are secured to each of the pair of foot rest linkages for applying a restoring force to the foot rest to a retracted position.

A seeding machine includes at least one seed metering system and at least one seed placement system. Each seed placement system is in communication with a corresponding seed metering system. Each seed placement system includes a seed slide having a bottom end and a seed trough terminating at the bottom end.

A tonneau panel mechanism engages a stationary track in a closed position and disengages from the stationary track when in the open position. The tonneau panel exhibits a first stage of motion that includes both pivotal and non-pivotal motion and a second stage of motion that consists of substantially rotational motion about a pivot. The tonneau panel mechanism can include a linkage assembly with at least one link that engages with a stop on the tonneau panel to alter the motion of the tonneau panel between the first and second stages of motion. The tonneau panel can also use an at least four-bar linkage wherein at least two of the links move relative to one another during the first stage of motion and are locked together during a second stage of motion.

The invention provides for a wiper arm for a windshield wiper system comprising a fixing element (12) for connection to a drive shaft, whereby a tiltably-fixed cover unit (24) is provided for at least partially releasing the fixing element (12). It is proposed that the cover unit (24) can be engaged with the fixing element (12) in the tilted position. A cover unit for a wiper arm is also proposed.

A ride ready vehicle-mounted bicycle carrier includes a pair of spaced apart wheel supports and a stabilizing member which is engageable with the bicycle, preferably with one of the bicycle wheels, at a location above the wheel supports. One of the wheel supports is in the form of a pair of spaced apart wheel engagement members which are pivotably mounted to a structural member associated with the carrier, and which are configured to grip the wheel so as to provide initial support for the bicycle on the carrier. The stabilizing member is in the form of a clamp arm mechanism having a base mounted to the structural member and an extendible and retractable arm having a wheel-engaging portion at its outer end, which can be moved into and out of engagement with the wheel. The clamp arm mechanism is located between the wheel support members, and is arranged to apply a vertical downward force on the wheel at a location between the wheel engagement members, to provide a secure three-point engagement of the wheel and thereby to provide stable mounting of the bicycle to the carrier.

A deltoid arm protection system for a ballistic vest including an asymmetrical anatomically shaped deltoid cover having fasteners for attachment to a ballistic vest. The deltoid cover is connected to the vest and prevents any gaps forming between the deltoid cover and the vest during arm movement of the wearer. The deltoid cover includes a weapon gripping pad and attachment loops on an outer surface of the deltoid cover.

FIG. 3 illustrates a clamp piston assembly (40) comprising a body portion (44, 46, 48) in which a pocket is provided. The pocket is arranged to receive an insert in the form of a rotatable clamp bushing (48). Sets of blades or wear pads (52, 62) are positioned on both an internal surface (51) of the pocket and the external surface of the clamp bushing (48) and cooperate to form sealable chambers that extend about the circumference of the clamp bushing (48). These chambers are in fluid communication with suitable processor-controlled valves (82, 84) and hydraulic or pneumatic pumps (80) that operative to purge and inject fluid from and into the chambers. Pressurized fluid acting within selected chambers causes rotation of the clamp bushing (54). The insert also contains a row of teeth (58) arranged to selectively engage corresponding teeth (25, 26) in a tie-bar (19, 20). The clamp bushing (48) is hence independently rotatable from its surrounding body (48) that, in use, is mechanically attached to an injection molding machine (10).

An undercut anchor element comprising a shank of an anchor bolt. The shank passes through a base part, which is provided for effecting an anchoring, passes through a spacer sleeve, and at the end thereof is provided with a tightening head. The tightening head can be pulled inside the base part, which is subdivided into anchoring segments by slots provided over a portion of the length of the base part. The slots lead from the front free end of the base part up and into the area of an encircling groove. The anchoring segments have the outer shape of two truncated cones which coincide with their ends that have a smaller diameter. The truncated cone that is located in front in a direction of mounting has an obtuse cone angle of greater than 150° and the adjoining truncated cone has an acute cone angle of less than 30°.

A tie for bundling a plurality of elongated objects is formed in a generally arcuate configuration from a material having shape retaining memory properties. Complemental teeth on two opposed surface lock the two surfaces together to form a closed loop.

A cutting insert made of cemented carbide and the use thereof for recessing or copy-turning, preferably at a high rotating speed. The cutting insert has at least one recess for insertion therein of a cutting body comprising a cutting material different from cemented carbide to form a firm connection, the cutting body having a cutting edge formed thereon. The cutting insert has high mechanical strength even with small dimensions in the high-temperature range because the cutting body comprises a ceramic cutting material and has a geometric shape at least a portion of which is congruent with the geometric shape of the recess. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): "A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading "Abstract of the Disclosure." The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims."Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

A roof or wall covering comprising a plurality of horizontal courses of molded plastic panels each formed with a single row of simulated shake shingles. The panels have a continuous upper interlock flange that facilitates inner-engagement of the panels of overlying courses without cumbersome handling of numerous small interlock fingers which can be missed during installation. Cooperating detents are provided between the overlying lower and upper marginal edge regions which facilitate proper positioning of the panels and which support the weight of the panel during securement to a wall surface. A bottom interlock flange is supported transversely across a rear side of the panel by vertically-spaced support plates which facilitate both liquid drainage and air circulation through the installed wall covering. In the preferred embodiment, the panels in alternate courses are identically formed with different shake patterns for enhancing the natural appearance of the wall covering.

A silencer for an exhaust system of a combustion engine, more preferably of a motor vehicle, has two end face bottoms facing away from each other, a closed circumferential jacket, at least one silencer insert, at least one inlet pipe and at least one outlet pipe. At least one of the pipes extends through the jacket into the silencer interior and is fastened to the jacket. The manufacture can be simplified if the pipe extending through the jacket has a cone, if the silencer insert on an intermediate pipe has a mating cone which engages in the cone.