Abstract: A protrusio cup for implantation in the acetabulum, including an acetabular cup and a protrusio shell mounted on the acetabular cup by interlocking grooves and projections. The acetabular cup has a hemispherical bearing surface which terminates in a part-conical surface. The bearing surface and the part-conical surface are rotated through an angle to reduce the likelihood of dislocation and to increase the range of motion.

Abstract: A label applicator for labeling an article comprising a supporting structure, a label receiver mounted on the supporting structure for movement along a path between a label dispensing station and a label applying station and for rotational movement about an axis to control the angular orientation of the label, and a label dispenser for moving a label onto the label receiver at the label dispensing station. The label is releasably retained on the label receiver, and the label receiver is moved along the path between the stations. The label receiver is rotated about the axis so that the angular orientation of the label relative to the article can be controlled.

Abstract: A hydraulic circuit breaker for use with a hydraulic device comprising a body having a supply conduit for supplying hydraulic fluid under pressure to the hydraulic device and a return conduit for carrying hydraulic fluid away from the hydraulic device. A slide valve is mounted for movement in a first chamber of the body to define a supply orifice of variable area in the supply passage and a return orifice of variable area in the return passage. The slide valve is positioned in the body as a function of the pressure drop across at least one of the orifices. A pressure responsive member is mounted for movement in the body and moves in response to the pressure drop across the supply orifice reaching a predetermined value. A movable drive member extends into both of the chambers so that it can transmit at least some of the motion of the pressure responsive member to the slide valve to move the slide valve to close the supply and return orifices.

Abstract: A reciprocable device comprising a reciprocable member mounted for reciprocating movement within a chamber and a valve system for controlling the supply of fluid under pressure to the reciprocable member to bring about reciprocation of such member. The valve system includes first and second valve elements, a connector joining the valve elements and a bistable spring, which is actuated by the reciprocable member, for driving the connector.

Abstract: A pump comprising a housing and a flexible diaphragm mounted in the housing. A first region of the diaphragm partially defines a first pumping chamber, and the pumping chamber has an inlet and an outlet. A wobble plate drive is coupled to the first region of the diaphragm to provide a pumping action in the pumping chamber. The wobble plate drive has a nutating axis, and the first region of the diaphragm lies radially outwardly of the nutating axis. The first region of the diaphragm has a generally annular ramp section which flexes when driven by the wobble plate drive to provide the pumping action, and the ramp section is wider radially at a location remote from the nutating axis than at a location nearer the nutating axis. The pump also has a single outlet valve arranged to serve multiple pumping chambers.

Abstract: A surgical illuminator comprising a plurality of elongated, flexible, optical fibers having proximal and distal end portions and a strip of tape for retaining at least the distal end portions of the optical fibers in a ribbon-like pattern. A connector is coupled to the proximal end portions of the optical fibers, and the connector is adapted to optically couple the optical fibers to a light source. The tape has adhesive on both of its faces so that the tape can also be adhered to a surgical instrument to provide illumination from the light source.

Abstract: A fast learn modem comprising a transmitter for generating a fast learn preamble and applying the preamble to a communication channel and a receiver for receiving the fast learn preamble from the communication channel. The fast learn preamble includes a single impulse and the timing, phase and equalization characteristics of the receiver are adjusted in response to the single impulse so that the receiver can receive and process data.

Abstract: An apparatus for making electrical contact within the heart of a patient for pacing the heart and ECG sensing comprising an elongated tube sized to be received through a vein or artery into the heart and having a peripheral wall, at least one lumen and an opening in the peripheral wall which extends from the lumen to the exterior of the tube. An electrode is mounted in the lumen with the electrode being exposed at the opening. At least one conductive lead is coupled to the electrode and extends proximally within the tube. The tube has a body line, and the electrode extends radially outwardly no farther than the body line.

Abstract: A method of weighting an arrowhead having a wall defining an interior passage and a pointed end comprising introducing an adhesive weight composition of the desired weight and in a solid state into the passage and heating the arrowhead and weight composition to an elevated temperature within the passage with the composition being flowable at such elevated temperature and cooling the adhesive weight composition to a solid state to strongly adhere the weight composition to the wall of the passage to such an extent that the adhesive weight composition is not likely to release from the wall during normal use of the arrowhead. An arrowhead having a wall defining an interior passage opening at a surface of the arrowhead and a pointed end for penetrating an object. An adhesive weight composition which is sticky in the solid state and cured in situ is located in the passage. The weight composition is strongly adhered to the wall of the passage and is pliable in the solid state.

Abstract: A method of controlling the removal of flowable material from a well using a pump in the well which includes a housing having at least one aperture leading to an interior chamber within the housing so that flowable material from the well can enter the chamber and a pressure responsive valve for opening and closing the aperture. Gas is supplied under pressure through a conduit to the pump to close the valve to terminate entry of the flowable material into the chamber and to force the flowable material out of the pump. The flow of gas under pressure is then terminated, and gas from the conduit is vented. The venting is carried out during the time that the gas under pressure is supplied through the conduit to the pump and following the termination of the flow of gas to the pump to bleed gas under pressure from the conduit and the pump so that flowable material from the well can again enter the chamber.

Abstract: An intraocular lens assembly for implantation in the eye comprising a lens and first and second support members coupled to the lens and extending to locations spaced radially outwardly of the lens. At least one of the support members comprises a resiliently deformable strand having an outer segment which extends from the lens to a distal location spaced radially outwardly of the lens and an inner segment joined to the outer segment adjacent the distal location and extending to the lens. Major portions of the outer and inner segments are generally parallel, and regions of the parallel portions are curved so that the support member can be easily resiliently deformed toward the lens.

Abstract: A fuel preheater and emission control device for heating fuel being supplied through a fuel conduit from a fuel supply to the engine, and thereby improving its combustion. Fuel heating is accomplished as a result of heat exchange between the fuel and engine coolant flowing in a coolant conduit. The preheater comprises a coolant tube adapted to have heated coolant flow therethrough and a fuel tube adapted to have fuel flow therethrough enroute to the engine. The fuel tube includes a coil having a plurality of convolutions extending around the exterior of the coolant tube and a downstream section extending for a substantial distance within the coolant tube. The region of the downstream section between the most downstream convolution and the location at which the downstream section enters the coolant tube is spaced from the coolant tube in a way to minimize the likelihood of vapor lock, while the downstream section assures adequate fast heating for improved cold-weather performance and emission control.

Abstract: A portable space divider screen which comprises a panel having a frame and infill means in same and means to join a panel to other panels and in which the infill means comprising cellular members with the cells containing sound-absorbent material, apertured wall members enclosing the infill means, and outwardly facing covers of sound-absorbing fabric over the said apertured wall members, and optionally a longitudinal slot in at least an upper face of the upper frame member and ducts to contain electrical wiring etc. longitudinally extending along the lower portion of the panel and having skirtings to cover the ducts to and support power outlets.

Abstract: A label applicator for labeling articles moving along a path which includes a label retaining device for retaining labels at a label retaining station, a label dispenser for dispensing labels onto the label retaining device, a rotatable wheel for use in orienting articles at the label retaining station, a label transfer device for blowing a leading portion of the label on the label retaining means onto an article at the label retaining station while allowing a trailing portion of the label to remain on the label retaining device so that movement of the article past the label retaining station pulls the trailing portion of the label from the label retaining device, and a label wrap device downstream of the label retaining station for applying the trailing portion of the label to the article.

Abstract: An optical sensor comprising a selectively permeable matrix of hydrophobic material and a plurality of hydrophilic beads dispersed in the matrix. At least some of the beads carry an optical indicator. The matrix is capable of transmitting light at least at selected wavelengths from outside the matrix to the beads.

Abstract: An apparatus for administering a fluid from a source to a patient comprising a flexible conduit extending from the source to the patient and a roller clamp, including a rotary member which rotates and translates to restrict the conduit to control the flow of fluid to the patient. The roller clamp is retained in position, and a motor drives the rotary member to the desired position.

Abstract: An automatic valve motor for shutting off utilities, such as gas, in the event of an earthquake. The valve motor is self-contained and can be mounted by unskilled persons on a conventional residential gas installation adjacent the main valve without modifying the valve or interfering with the operation of the gas line. An omnidirectionally movable pendulum acting on a pivotal latch is used to release for rotation a wheel whose hub has a key slot which engages the actuator bar of the gas valve. The wheel is driven by a linear spring arrangement which exerts a generally tangential turning force on the wheel for maximum leverage throughout an arc of rotation of about 90.degree..

Abstract: Updated cardiac output measurements are obtained using a reference value of cardiac output and the natural change in phase of variations in blood temperature. The reference value of cardiac output can be obtained using a thermodilution technique. The variations in blood temperature are sensed at appropriate locations, such as in the right atrium and the pulmonary artery. The temperature information is processed to provide a signal which is related to the velocity of the blood, and the signal and the reference value of cardiac output are used to provide the updated cardiac output measurement.

Abstract: An irrigation conduit comprising an extruded tube having a peripheral wall and at least one elongated passage and an elongated supply tube having an elongated supply passage. The supply tube is formed of sheet material joined together along longitudinally extending portions to form a seam. A region of the sheet material extends at least part way around the perimeter of the extruded tube, and the extruded tube is retained on such region of the sheet material. Transfer ports extend between the passages of the two tubes and discharge ports extend from the passage of the extruded tube to the exterior of the irrigation conduit.

Abstract: A transducer assembly comprising a transducer housing, a retainer mounted on the housing for generally axial movement relative to the housing and a collar for relatively moving the retainer and the housing along the path between a locking position and a releasing position. The transducer assembly also includes a dome which is coupled to the housing by cooperating lugs and retaining flanges on the dome and the retainer, respectively.