156results about How to "Prevent overcompression" patented technology

Apparatus and methods for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.

Systems for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.

A method of making car bodywork, the method including a step of assembling body sides (4a, 4b) to an underbody (1), the underbody (1) including a rigid engine compartment (2) at one end and being placed in an assembly station in a precise position determined in an orthogonal frame of reference having directions X, Y, and Z, the method consisting: in putting the body sides (4a, 4b) into position and holding them in position in the frame of reference of the station by means of two parallel tools (13, 14) each co-operating with a respective body side (4a, 4b), and at least one transverse tool (11) extending transversely to said parallel tools, the three tools being connected to one another and to the X, Y, Z frame of reference of the station in such a manner that the transverse tool (11) is placed and held in a position that is precise and locked in the frame of reference and that it forms a spacer and bracing tool in the Y direction for the two parallel tools (13, 14) in a zone that is remote from the engine compartment (2) of the underbody (1); and in maintaining a force (F) pressing each of the parallel tools (13, 14) at least against the sides of the engine compartment (2) of the underbody (1) while the body sides are being assembled to the underbody.

Unitary one-piece frameless overpressure vent panel assembly (10) includes a rigid, generally planar primary support member having a central relief opening (26), a rigid, generally planar secondary support member (44) provided with a central relief aperture (46), and a frangible vent panel (30) between the support members in full closing relationship to the relief opening and the aperture. A sealant element (48) may be provided between the vent panel and at least one of the support members in circumscribing relationship to the relief opening or aperture. At least one line of weakness (34) may be provided in the vent panel. A flexible gasket (58) secured to the secondary support member assures a fluid tight seal between the vent panel assembly and the structure defining a protected zone. Alternatively, a knife blade or the like may be provided adjacent the vent panel to effect severing thereof under a predetermined overpressure in lieu of a line of weakness in the panel.

A novel electrical connector and method of manufacture is disclosed which provides an integral attachment and retention means for the purpose of electrically and mechanically interconnecting circuit elements in electronic devices, said circuit elements including but not limited to printed circuit boards, flexible printed circuits, rigid flex circuits, semiconductor package substrates, modules, and batteries. The electrical connector of the present invention utilizes a bonding material, disposed at least between the electrical spring contact elements on a surface of the connector, to bond and retain first and second portions of the electrical connector in an actuated state on a mating circuit element whereby stable and low resistance electrical interconnections are formed and maintained between the electrical connector and interconnection terminals on the mating circuit element. This design permits the electrical connector to be low-profile and use a reduced amount of space on a circuit member such as a PCB.

The invention discloses an electronic expansion valve, comprising a drive mechanism, a transmission mechanism, a valve seat and a valve needle component, wherein the valve needle component is provided with a valve needle axially moving along the valve cavity of the electronic expansion valve to control the openness of a valve opening, a valve rod, and an elastic component for reset. The electronic expansion valve is characterized by further comprising a limit structure arranged in the valve cavity and provided with an axial channel, and the valve needle component is provided with a transversal flange; and the limit structure is located above the flange in the case that the valve needle component moves upwards until the valve opening has the maximum openness, and the minimum radial dimension of the axial channel is less than the maximum radial dimension of the flange. The valve needle component of the electronic expansion valve cannot continue to move upwards due to the resisting of the limit structure in case of moving upwards to the position where the valve opening is the largest or slightly higher, and the valve needle component cannot greatly move upwards to compress the elastic component for reset in excess in case of coil detachment and replacement and in the other cases of needing to separate the valve needle component from other components above, thus prolonging the service life of the elastic component.

A plastic screw cap has a threaded top portion and tabs of varying heights disposed around an inner circumference of a lower sleeve-portion. These tabs clasp a land disposed on a container neck to restrain the sleeve portion on the neck when the cap is unscrewed. A threaded top portion mates with threads on the container above the land. A sealing liner and diffusion barrier disposed at the bottle opening, together with a crush-resistant cap structure, prevent wine leakage and control oxygen ingress. Typically, the plastic cap is threaded onto the container neck, forming a tamper-evident seal. When unscrewed, the plastic-cap top moves up the container threads, exerting a pull on the sleeve portion, which is restrained due to the closure tabs acting on the land. Between the closure tabs and the threaded top is a breakaway line, which tears due to the removal forces. This tear evidences tampering.

Fire sprinkler system comprising a network of CPVC pipe lengths in which at least some of the pipe lengths are interconnected with mechanical devices having resilient sealing members that are chemically compatible with the CPVC composition. Repairs and system modifications can be made without the use of solvent cement. In-line joints are formed with a coupling device including a pair of arcuate coupling segments having a first end, a second end, and an interior concave surface extending between the first end and the second end. A longitudinal channel extends along the concave surface. At least one mechanical fastener is operative to detachably connect the pair of coupling segments. A resilient annular seal is located within the longitudinal channel of each segment. A branching device connects a branch pipe to a main pipe through an orifice in the main pipe utilizing a saddle-like sealing member. The pipe assemblies are able to pass UL testing protocols for wet fire sprinkler systems.

The invention provides an enthalpy-spraying compressor air conditioner system and a control method thereof. The enthalpy-spraying compressor air conditioner system comprises a compressor (1), an outdoor heat exchanger (2), an indoor heat exchanger and an enthalpy increasing device arranged between the outdoor heat exchanger (2) and the indoor heat exchanger. The enthalpy increasing device comprises a supercooling device (3) and a first control valve (4), and further comprises an enthalpy-spraying pipeline (5) with one end connected to the compressor (1) and the other end connected to the gas outlet end of the enthalpy increasing device. A second control valve (6) is arranged on the enthalpy-spraying pipeline (5). By adoption of the enthalpy-spraying compressor air conditioner system and the control method thereof, control over pressure of the two-stage enthalpy-spraying pipeline can be achieved, the enthalpy-spraying pressure of the enthalpy-spraying compressor air conditioner system can be effectively and accurately controlled, the gas supplementing pressure is controlled to be close to an optimal gas supplementing pressure point as much as possible, it is guaranteed that the compressor is in the full compression state as much as possible, the situation that over compression or insufficient compression of the compressor is caused when the gas supplementing pressure is too high or too low is avoided, and therefore the heating capacity and energy efficiency of the enthalpy-spraying compressor air conditioner system are improved.

The invention discloses an intermittent linear conveying device, and belongs to the field of conveying equipment for intermittently and linearly conveying objects. A material moving cam (10) is connected with a material moving connecting rod (11), the material moving connecting rod (11) is connected to a vertical guide mechanism in a sliding mode, and a material moving shifting pawl (1) is fixedly connected with the vertical guide mechanism. The vertical guide mechanism is horizontally arranged on a vertical sliding plate (31) in a sliding mode, the vertical sliding plate (31) is vertically arranged in a sliding mode and is connected with a material moving lifting cam (16), the material moving cam (10) drives the material moving shifting pawl (1) to advance or retreat in place through the material moving connecting rod (11), and the material moving lifting cam (16) drives the material moving shifting pawl (1) to ascend and descend through the vertical sliding plate (31). A locating cam (14) is connected with a locating connecting rod (35) which is vertically arranged in a sliding mode, a locating shifting pawl (2) is fixedly connected with the locating connecting rod (35), and the locating cam (14) drives the locating shifting pawl (2) to ascend and descend. The intermittent linear conveying device has the advantages of being accurate in conveying position and reliable in motion, improving work efficiency and the like.

A medical device including artificial contractile structures generally devised to be used in the medical field. Such structures may be advantageously used to assist the functioning of an organ. The medical device includes an artificial contractile structure having at least two contractile elements (100) adapted to contract an organ, in such way that each of the contractile elements (100) can be in a resting or in an activated position, independently of the position of each other, the activated position being defined with the contractile element (100) constricting the organ and the resting position being defined with the contractile element (100) not constricting the organ, and at least one actuator designed to activate the contractile structure. Each contractile element (100) is connected to an adjacent contractile element (100), while remaining flexible one with respect to the other.

The invention discloses a rotary compressor and a refrigerating circulating system with the same. The rotary compressor comprises a shell, a compression device and a motor, wherein the compression device comprises a first cylinder and a second cylinder which are provided with a first compression cavity and a second compression cavity respectively, a middle partition plate, a first piston, a second piston, a first slip sheet, a second slip sheet, a crankshaft for driving the first piston and the second piston to rotate, a main bearing, an auxiliary bearing, a first exhaust silencer arranged above the main bearing, a second exhaust silencer arranged below the auxiliary bearing, and an exhaust assembly for exhausting high-pressure refrigerants in the first exhaust silencer and the second exhaust silencer. According to the rotary compressor, due to the exhaust assembly, the exhaust efficiency is improved, the volumetric efficiency is improved and overcompression is prevented; in addition, the difference of oil supply amounts of two compression cavities is minimized, the compression efficiency reduction caused by leakage of the refrigerants is prevented and the reliability of sliding parts is improved.

Provided is acarrier tape with improved tensile strength and flexural rigidity in a longitudinal direction of a base material, including recesses provided at a narrow pitch in one surface of the base material, and manufacturable at reduced cost, as well as to provide an apparatus and a method for manufacturing such a carrier tape. The carrier tape of the present invention is constituted by a strip-shaped base material (2), and includes: a plurality of recesses (3) provided in one surface of the base material (2) and for containing electronic components (30); a covering unit (4) configured to seal openings of the recesses (3); and a projection (5) provided on the other surface of the base material (2) along a longitudinal direction of the base material (2), a length of the projection being such that the projection (5) extends over at least two of the recesses (3).

Inhaler valve (30) comprising a gathering ring (70) comprised of a non-elastomeric polymer-material, wherein at least one annular section (110, 140, 160, 180) of the gathering ring (70) is formed to be deformable in the radial direction in order to absorb over compression of the ring outer periphery when crimping the valve (30) onto a container (20). There is also provided an inhaler container (10) with such an inhaler valve.

The invention relates to a screw vacuum pump comprising screw rotors (12, 14) disposed in a suction chamber (10). The screw rotors (12, 14) are each supported by means of two bearing elements (20) in the pump housing and comprise a ratio of rotor length (I) to rotor axis spacing (d) that is greater than 3.0. The screw rotors (12, 14) further comprise a variable pitch, at least 7 turns, and an integral compression ratio of at least 4.5. The pitch after half of the turns is less than twice the pitch on the pressure side rotor outlet (24).