Abstract: A priority interrupt circuit for inhibiting the supply of signals from a first audio signal source to an electroacoustic transducer and substituting therefore signals from a second audio signal source in response to the occurrence of signals from the second source and despite the continued availability of signals from the first source is disclosed having the further capability of effecting the substitution of the second source for the first source when a radio frequency transmitter is enabled.

Abstract: A method and apparatus for sterilization wherein a flexible, non-resilient, filamentar electrode having an exposed cauterizing tip at one end thereof, and having a thin, dielectric, lubricous covering insulating the electrode up to the exposed tip, is inserted into a severed vas deferens. The electrode insertion is continued until the tip has been located a predetermined distance into the vas. This distance is less than the covering length so that the tip is contiguous with the inner vas walls but the remainder of the electrode is completely insulated therefrom. A second electrode is placed in electrical contact with the patient's body. A radio frequency (r.f.) energy source is applied to the other electrode end to cause r.f. energy flow from the tip to the inner vas wall. The tip is then withdrawn at a predetermined rate while applying r.f. energy to the electrode to thereby cauterize the inner walls which join together in permanent sperm-sealing relation.

Abstract: This invention relates to the thermostat for coolants to switch coolant flow from a first passage to either a second or third passage. The thermostat comprises a bimetallic spring disc which in one position directs the flow to the second passage and when heated to a predetermined temperature by the coolant switches the flow to the third passage. The thermostat is adjustably mounted.

Abstract: An electric motor control circuit, especially for a split phase motor, in which a positive temperature coefficient resistor is interposed in the starting winding circuit to substantially remove the starting winding from the circuit after the motor has started while a temperature sensitive switch is provided in series with the motor to deenergize the motor when it is overloaded. The positive temperature coefficient resistor element has a temperature sensitive element associated therewith which prevents the temperature sensitive switch from activating to a closed position from an open position whenever the resistor element is above a predetermined temperature.

Abstract: The method of fabricating a C-clamp composed of a base section having a first jaw extending from one end thereof and a second jaw extending from the opposite end thereof to define a jaw opening. The free end of the first jaw is provided with a first clamp pad affixed thereto facing the jaw opening. An elongate pressure screw is threadedly mounted in the free end of the second jaw and is movable upon threaded rotation relative the second jaw towards and away from the first clamp pad. A polygonal head member having two parallel sides is formed at one end of the pressure screw. An elongate extruded handle having a channel-shaped cross section slidably receives the head member, the parallel sides of the head member being in sliding surface engagement with the inner walls of the handle member. The handle ends are formed to retain the handle on the head member. A swivel ball is formed at the opposite end of the pressure screw.

Abstract: A coaxial cable connector device and a coaxial cable embodying the connector device and a method of making a coaxial cable device in which a coaxial cable is provided with conductive elements which electrically engage respective ones of the conductors of the cable at each end thereof. Plastic material is molded in situ on the ends of the cable and fix the conductive elements in place on the ends of the cable and in electrical isolation with one another. At least one element on one end of a cable is complementary in configuration to an element on the other end of a cable while further conductive means is provided which is operable to effect electrical connection between the others of the elements on the respective ends of the cables. The cables can be connected in series or between a source and a receiver utilizing one and the same connector elements on the cable ends.

Abstract: An air conditioning system having a refrigerant system including a compressor, a condenser coil and fan, and an evaporator coil and fan and including a control system which comprises an electrically operated timer switch for alternately connecting the compressor for a preselected first period of time and disconnecting said compressor for a preselected second period of time, a thermostat for starting the timer when the sensed ambient temperature falls outside a preselected temperature range and for stopping and overriding the timer to disconnect the compressor from the terminals when the ambient temperature falls within the preselected temperature range. The evaporator fan continues to run after the compressor has been turned off thereby continuing to provide additional air cooling without the expenditure of energy to run the compressor.

Abstract: A primary load, such as a conventional household light bulb, is series connected to a power source, such as is provided to a conventional household outlet. The conventional light switch is replaced by a circuit series connected to the source and lamp and draws relatively low operating power through the primary load. The circuit has an energy storage capacitor and a diode. A secondary load, such as an alarm, is coupled across the capacitor through an SCR (Silicon Controlled Rectifier). A sensing circuit, such as a smoke detector, is also connected across the capacitor and connected to the gate of the SCR and triggers the SCR upon detection of an alarm condition. A timing circuit is coupled between the SCR output and the diode to intermittently control the light bulb operation at a predetermined frequency upon smoke detection or other alarm.

Abstract: A storage compartment for a collapsible boat canopy which folds to a horizontal position within the rear portion of the cockpit when not in use. The storage compartment is formed underneath the rear deck of the boat and has a forwardly facing opening closed by means of the rear passenger seat backrest, which is hingedly connected to the leading edge of the rear deck. The structural members for the canopy are supported within tracks on the cockpit side walls thereby permitting the entire canopy structure to be slid rearwardly so that the folded fabric portion is received within the storage compartment. The rear seat backrest is then swung downwardly over the opening and all but the vertical legs of the canopy structure is concealed. An upstanding ridge molded into the floor of the storage compartment serves to prevent the canopy from sliding forwardly.

Abstract: This invention provides overload protection to power components such as power transistors. A pair of driver transistors is connected in push-pull configuration and is coupled through an auto transformer to a pair of power transistors also connected in push-pull configuration. An impedance-matching transformer couples the pair of power transistors to a load circuit, such as a speaker. A low turn winding is connected in series with the secondary winding of the impedance-matching transformer, and drives a high turn winding in a silicon controlled rectifier trigger circuit which is triggered "on" when an overload condition exists in the low turn winding. Upon conduction of the silicon controlled rectifier, a switching transistor is switched "on" and this, in turn, switches "off" a power disabling transistor which is connected directly to, and in power disabling relation to, the pair of driver transistors.

Abstract: A positive displacement fluid moving mechanism having internal construction features which allow it to possess a very high ratio of fluid displaced per unit rotation in relation to the volume of the displacing mechanism, whereas, this feature allows increased performance due to less energy required to operate the unit because of its reduced size and internal friction.

Abstract: A self-contained emergency signaling device is removably mounted to a carrier, such as a fireman's helmet or oxygen tank. While mounted on the carrier, a high-intensity strobe light signals the position of the carrier. When detached from the carrier, a position-fixing sound producer is automatically actuated, in addition to the strobe light.

Abstract: A folding chair of the type having generally rectangular, open, inner and outer frames pivotally connected together and nestable one within the other, a seat panel pivotally secured to one of the frames, and a seat back in the form of a generally rectangular open frame which is pivotally secured to one of the inner or outer frames and nestable therewith so that the chair may be folded into a very compact unit of minimum dimensions. In order to provide comfort to the user and additional rigidity to the structure, there is provided a rigid seat back panel pivotally secured along one edge to the seat panel and having its opposite edge removably received in a slot in the upper portion of the seat back frame. When the seat back is pulled forwardly from its fully extended, upright position, the back panel will be pulled out of the slot so that the seat back frame may be passed over the seat panel and folded together with the seat panel and the inner and outer frames.

Abstract: A fire shield device for use with an electrical box mounted in an opening in a building wall for inhibiting fire in the box from reaching the walls surrounding the opening. The device is formed of fire-resistant material, such as metal or fire-resistant plastic, and comprises opposite side and end walls which define a rectangle and which are adapted to fit snugly within the box.A substantially continuous, outwardly extending peripheral flange is joined to the walls and is adapted to engage the outer surface of the building wall surrounding the opening. The walls of the device have spaced, peripherally extending grooves formed therein parallel with the edges for breaking away predetermined peripherally extending segments of the walls thereby to selectively shorten the height of the walls so as to accommodate the device to a particular box and building wall thickness.

Abstract: A dolly for lifting and transporting cumbersome objects such as barrels is disclosed having a wheel supported base and a pair of horizontally disposed arms supported on that base in cantilever fashion which arms are simultaneously movable in a vertical direction. An open ended object clamp for gripping the object to be transported is pivotably connected to the arms near the free ends thereof so that the object clamp may be rotated about a horizontal axis and the open end thereof directed downwardly to engage an object from above or that open end directed horizontally to engage an object from the side despite the fact that that object may be against a wall or other obstacle.

Abstract: An antenna mount for attaching a whip-type antenna to a peripheral edge of a vehicular trunk lid. The mount comprises an insulative housing having top and side walls defining a cavity, the side wall having a peripheral edge adapted to engage the lid adjacent the edge to close a part of the cavity, a portion of the side wall edge being adapted to extend outwardly beyond the lid edge to define therewith an opening communicating with the cavity. A metallic mounting bracket member is provided having a portion in the cavity engaging the inner surface of the top wall, the bracket member having a clamp portion adapted to embrace the edge of the lid. The clamp portion has an elongated slot formed therein having an end spaced from the distal end of the bracket member to define an end section thereof, the end section having an indentation formed therein aligned with the slot and communicating therewith.

Abstract: A vehicle radio mount having a first member adapted to be mounted to the underside of a vehicle dashboard and having two opposed elongate transversely spaced parallel slide elements. A plurality of exposed conductive contacts are mounted in downwardly facing position in the first member and are connectible to respective vehicle power supply, amplifier, speaker, antenna and other circuits. A locking ridge is formed in downwardly facing position in the first member. A second member, adapted to be connected to a vehicle radio, has a pair of parallel elongate transversely spaced slide receiving grooves which correspond to and are registrable with the slide elements in the first member. A stop is formed at the end of each groove. A tab carrying a locking boss is resiliently cantilevered to the second member and extends adjacent to and is manually accessible to a manual gripping portion on the second member.

Abstract: A plurality of transversely alignable elongate wall sections having longitudinal edges of adjacent sections in abutting relation. Hinges are connected between each of the abutting longitudinal edges so that the wall sections are foldable to form an enclosure. Each of the wall sections have upper and lower transverse edges with the upper edges being in horizontal alignment and the lower edges being in horizontal alignment. An elongate channel having a U-shaped cross-section is removably fitted over the upper transverse edges and a similar channel is fitted over the lower edges to secure the wall sections in planar alignment. A pair of elongate stabilizers are removably fitted to the lower channel and extend substantially orthogonally from either side of the wall section. A planar elongate cabinet top is removably and orthogonally supported to a lower portion of the wall sections and an elongate planar cabinet front is removably positioned between the cabinet top and the stabilizers to form a cabinet enclosure.

Abstract: A hearth construction having a plurality of sections each of which has a first plurality of parallel, stainless steel I-beams connected in spaced relation by a plurality of transverse stainless steel I-beams. The top surfaces of the longitudinal and transverse I-beams are co-planar to provide a furnace floor for supporting work loads to be heat treated. In each section there are three elongated beams with the outer beams in each section having extensions at one end thereof. The ends of the extensions are situated in the furnace vestibule and have chamfered ends to facilitate loading and unloading of the work loads. Each section has a plurality of pairs of pier plates. The pairs are longitudinally spaced along the elongated beams at a distance corresponding to pier blocks which are situated on and extend from the furnace subfloor. The spacing between the plates in each pair dimensionally conforms to the pier blocks.

Abstract: A vibrator device, especially for connecting to a screen element for agitating the screen element, and including rotary shafts with off-center weights so oriented relatively that the agitation of the screen takes the form of vibratory movement thereof in one direction with a stronger impulse being imparted to the screen in one direction than in the other.