60 results about "Blind side" patented technology

The present invention is directed to an apparatus and method for the stabilization and fastening of two pieces of tissue. A single device may be used to both stabilize and fasten the two pieces of tissue, or a separate stabilizing device may be used in conjunction with a fastening device. The stabilizing device may comprise a probe with vacuum ports and/or mechanical clamps disposed at the distal end to approximate the two pieces of tissue. After the pieces of tissue are stabilized, they are fastened together using sutures or clips. One exemplary embodiment of a suture-based fastener comprises a toggle and suture arrangement deployed by a needle, wherein the needle enters the front side of the tissue and exits the blind side. In a second exemplary embodiment, the suture-based fastener comprises a needle connected to a suture. The needle enters the blind side of the tissue and exits the front side. The suture is then tied in a knot to secure the pieces of tissue. One example of a clip-based fastener comprises a spring-loaded clip having two arms with tapered distal ends and barbs. The probe includes a deployment mechanism which causes the clip to pierce and lockingly secure the two pieces of tissue.

A blind fastener with a pin having a pin shank which extends through a cylindrical main sleeve and expansion sleeve whereby it can be gripped and pulled by an installation tool with the pin having an enlarged pin head at the blind end of the pin shank. The expansion sleeve is located between the pin head and the inner end of the main sleeve and is adapted to move into the inner or blind end of the main sleeve to form a first tulip shaped blind head for clamping workpieces together in response to a relative axial force applied between the sleeves and pin by engagement of the pin head with the expansion sleeve. As the axial force is increased the pin head is moved into the expansion sleeve to form a second tulip head to further clamp the workpieces and to secure the pin, main sleeve and expansion sleeve together at that end and is moved closely adjacent the workpiece surface at the blind side to form a high strength blind head.

A sealed attachment fastener assembly with a receiving member and a cap that can be inserted into an opening in a work piece and fixed therein from only one side of the work piece. A portion of the fastener assembly on the blind side of the work piece is collapsible into a flange. In addition, another portion of the fastener assembly is contemporaneously radially expandable within the opening of the work piece to at least rotationally secure the fastener assembly with respect to the work piece. The radial expansion will result in a high interference fit of the fastener in the work piece, which may enhance the fatigue of the installation. A cap completes the fastener assembly to substantially prevent fluid from leaking through the fastener assembly opening. The cap can be assembled with the receiving member after the internal threads within the receiving member have been machined.

A closed-loop hydraulic apparatus 200 for converting wave energy comprises a pump 201 for pumping a fluid through the apparatus 200. The pump 201 includes a body 202 defining a chamber 203, and a piston 207 that partitions the chamber 203 into a working side 208 and a blind side 209. A buoyant actuator is connected to the piston 207. An inlet 64 is connected to the working side 208 of the chamber 203 so that the fluid is able to flow from the inlet 64 and into the working side 208 of the chamber 203. An outlet 63 is connected to the working side 208 of the chamber 203 so that the fluid is able to flow from the working side 208 of the chamber 203 to the outlet 63. A hydraulic controller 102 is operable to control the pump 201 by controlling the pressure of the fluid at the inlet 64 and the outlet 63 so as to optimise the output of the pump 201 in response to tidal variations and/or sea state. The pressure of the fluid at the inlet 64 and the outlet 63 is controlled in accordance with a control algorithm.

The invention belongs to the field of video monitoring, and provides a rain wiper of a camera protective cover and a video monitoring system; the rain wiper comprises a substrate, a reflective optical coupler, a fixing frame, a sliding block, a connecting sheet, a guide rail, a driven wheel, a belt, a pinch roller, a belt wheel, a pressing sheet, a spring, a shell, a motor, a sealing rubber bar, a large rain wiper arm, a small rain wiper arm, a rubber bar clamping plate and a rubber bar; the connecting sheet and the sliding block are fixed together; the connecting sheet is used for clamping the belt; the sliding block is sheathed on the guide rail; the connecting sheet is connected with the large rain wiper arm; the large rain wiper arm is connected with the small rain wiper arm; the small rain wiper arm is connected with the rubber bar clamping plate; the rubber bar clamping plate is connected with the rubber bar; and the spring is further connected between the large rain wiper arm and the small rain wiper arm. In the invention, the structure such as a reflective optical coupler is adopted so that the work area is rectangular and the view window blind side splodge is effectively eliminated; and the belt torque is born on the motor shaft so that the damage rate of the rain wiper is reduced.

A temporary fastener or temporary blind rivet having a cylindrical sleeve and a sleeve head thereon, the region where the sleeve and sleeve head mate having a plurality of local protrusions thereon, with a stem passing through the sleeve head and sleeve, the stem having an enlarged stem head thereon adjacent the end of the sleeve opposite the sleeve head, the stem for pulling relative to the sleeve head to cause the enlarged stem head to form a blind side head on the sleeve, to pull the workpieces together, to cause the local protrusions to make depressions in, and to fill the depressions in, an outer edge of the hole in the adjacent workpiece, and to pull through the sleeve and sleeve head to expand the sleeve into a tight fit in the hole in the workpieces. The protrusions make indentations in the edge of the hole in the adjacent workpiece to provide increased resistance to spinning when the temporary blind rivet is drilled out for a permanent fastener.

The invention discloses a unilateral mounting bolt connector, a bolt gasket and an installation method thereof. The bolt connector comprises a screw and a bolt head at one end of the screw, wherein a contour line of the cross section of the bolt head is a closed pattern in shape of concavo-convex intervals. The bolt gasket comprises a base with holes and upright posts which are arranged on the base, wherein the upright posts are arranged on the base at intervals along a rotary plane. The bolt connector and the bolt gasket with the structures and the installation method break the structures of the prior bolt connector and the gasket and the prior installation method. When a blind hole is provided with a bolt, the method can finish installation operation on one side, and can conveniently detach a bolt component repeatedly. The method solves the problems that the prior bolt structure can not achieve repeated usage of detachment at the blind side and the method does not break a connected element during detachment. The method prolongs service life of the connected element, and saves cost greatly.

There is provided a blind rivet comprising an axially extending hollow tubular body having a tail end face at one end and a pre-formed radially enlarged flange at the other end, together with a mandrel having a stem which extends co-axially though the body and having enlarged head adjacent the tail end of the body, the stem having a weakened region immediately adjacent the head, whereby the mandrel head having an outer diameter greater than an outer diameter of said body, usually by between 4% and 9%, and which has a uniform conical shoulder extending between said outer diameter of the head and the stem, so as to exert a setting force having an axial component for compressing the rivet body axially and an angular component effecting conical deformation of the tail end radially. There is also provided a method of fastening at least two workpieces using such a blind rivet, including providing the blind side of the workpieces with a countersunk region to accommodate the conically deformed tail end of the body after setting, substantially flush therewith.

The invention discloses a fish-experiment biology observation instrument and a using method and belongs to the field of fish biology. The observation instrument comprises an aquarium, a support, a reflection observation device, a shooting device, a measurement device, a wireless transmission device, an image data receiving terminal and a temperature control system; the aquarium is installed on the support and is communicated with the temperature control system; the reflection observation device is installed on four supporting legs of the support, and the measurement device is mounted on the reflection observation device; the shooting device with the wireless transmission function is installed on one of the supporting legs of the support, wireless communication with the image data receiving terminal is achieved through the wireless transmission device, and thus data and images are transmitted in time; the temperature control system is connected with the aquarium to guarantee the appropriate temperature of water in the aquarium; thus, observation and recording of the blind side body color of an experiment fish and measurement of biological characters such as the total length, body length, body height, head length can be facilitated, stress influences, caused by manual operation, on the experiment fish can be drastically reduced, the experiment success rate is increased, the work efficiency is improved, and the labor cost is saved.

This invention provides a design of an adhesive encapsulated blind rivet for joining an assembly of overlying parts having an accessible side and an inaccessible side. The rivet comprises a rivet head and tubular rivet body. A mandrel is inserted through the open end of the tubular rivet body and through a mandrel hole in the rivet head. A mandrel head engages the end of the tubular body. The tubular body is filled with a mass of latent adhesive around the mandrel. The rivet body is longer than the thickness of the parts to be joined to accommodate a substantial amount of adhesive for expulsion through holes in the rivet body located within the thickness of the assembled parts. The portion of the rivet body extending beyond the blind side of the assembled parts is weakened in a pattern of corrugations or other bands for folding of the end of the tubular body in setting the blind side of the rivet and expelling the larger quantity of adhesive against and between the riveted parts.

An installation tool for use with a liner sleeve attachment, such as a nutplate assembly for mounting onto a substrate blind side as disclosed in U.S. Pat. No. 5,704,747. The installation tool includes retractable grip jaws for gripping and pulling a fixture pin protruding from the attachment, for initially advancing a tapered tool nose piece into deforming engagement with an attachment liner sleeve leading end to flare and/or expand the liner sleeve to lock the liner sleeve onto the substrate. Continued pulling action exerts a sufficient force to collapse a fixture pin head and thereby permit pull-removal of the fixture pin from the attachment. The nose piece is carried by a retractable inner housing normally retained in an advanced position for deforming the liner sleeve, and thereafter movable to a retracted position spaced from the liner sleeve to accommodate substantially unobstructed fixture pin separation from the attachment.

A fastener with a freely translatable collet body, which at least partially translates within an auxiliary structure, and further comprise a captive threaded screw for rotationally engaging with the collet body to transform rotational movement into translational movement through substantial arresting of collet body rotation by way of an anti-rotation means. The screw comprises a free-spin feature that functionally, but not physically, decouples a drive tool from the collet body.

A mandrel assembly has a mandrel, a biasing member, and a outer member. The biasing member biasly maintains the outer member in a first position, which corresponds to a contoured portion of the mandrel, when the outer member is either on the access or the blind side of a workpiece. The biasing member is compressible to allow the outer member to move into a second position as the outer member is moved through an opening in the workpiece. In the first position, the outer member includes a maximum outer circumference that is larger than the opening of the structural workpiece. In the second position, the outer member includes a maximum outer circumference that fits within the opening of the structural workpiece.

A blind rivet assembly for securing workpieces having aligned bores with the workpieces having an open surface at an open side and a blind surface at a blind side, the blind rivet assembly including a tubular shell having an enlarged shell head adapted to be in engagement with the open surface of the workpieces, a stem having an elongated shank with a stem head at the far end of the shank and having gripping means at the opposite end adapted to be gripped by an installation tool for application of an axial pulling force, and a placement ring having an near end and a far end, and having a pre-installation orientation and a post-installation orientation, wherein in the pre-installation orientation the placement ring is disposed around a ring receiving portion of the elongated shank, and the post-installation orientation is created by axially pulling the stem towards the open side of the workpieces with an axial pulling force that forces the placement ring into a through bore which causes the shell to deform outwards and form a blind head, and wherein upon continued axial pulling of the stem, the stem progressively moves into the shell until the stem encounters a stop shoulder, whereupon material of the stop shoulder is moved into a locking portion to arrest further movement of the stem, and whereupon increased axial force on the stem shears a portion of the stem on the open side at a shearable break-groove.

The invention relates to an industrial culture device capable of simulating a flounder paralichthys wild benthic environment. The industrial culture device comprises a culture pond, wherein a general blow-off hole is formed in the middle of the bottom of the culture pond; a hollow water level column for adjusting a water level is mounted on the general blow-off hole; a horizontal porous carrying platform for segmenting the bottom of the culture pond to form a lower blow-off layer space is arranged above the bottom of the culture pond; a sand filtering thin film covers on the upper surface of the porous carrying platform; a natural sea sand layer is arranged on the sand filtering thin film; an upper air guide pipe, which is connected with an air pump, is mounted on a peripheral side wall of the culture pond on the upper surface of the natural sea sand layer; and airflow blown out from an air guide hole of the upper air guide pipe passes through the upper surface of the natural sea sand layer, so that the natural sea sand layer is stirred. By adopting the industrial culture device provided by the invention, separation of blow-off and a habitat environment is realized and the quality of the habitat environment on an upper layer of a pond bottom is guaranteed, so that the condition of blind side melanism of flounder paralichthys is greatly reduced.