Abstract: A trochoid-type rotary piston gas expansion device including a stationary housing and endwalls defining an epitrochoidal cavity closing where the cavity is symmetrical about a first axis transverse to the end walls, a rotatable crank shaft extending through the cavity parallel to the first axis, and having an eccentric portion located on the shaft in the cavity, a rotary piston mounted on the eccentric portion of the shaft so that the axial centerline of the piston describes a circular path of selected diameter during rotation thereof where the rotary piston includes flank surfaces which intersect at apices to determine lines of sealing contact with the walls of the cavity.

Abstract: A cooking basket for use in upwardly open cooking chamber adapted to receive a heat transfer fluid with heater means to selectively heat the heat transfer fluid where the basket is generally cylindrical in shape and adapted to be selectively disposed within the chamber with its longitudinal axis generally parallel to the longitudinal axis of the chamber where the basket is defined by first and second generally porous sidewalls with a mean diameter less than the mean diameter of the chamber, hinge means joining one edge of each of the first and second side wall means so the free ends of the first and second sidewalls can be closed to form the basket and opened about the hinge means to provide access to the chamber defined by the first and second sidewalls and wherein each wall section includes shelf means disposed therein extending transversely from the respective sidewall means so that when the sidewall means are closed the shelf means of the first and second sidewall means are mutually disposed in interleavi

Abstract: An arrangement for use in a conveying and filling device where a conveyor is provided which travels along a linear path in a selected direction to carry articles, for example, recepticles to be filled. A dispensing device is carried by a mounting arm located in spaced relation from the conveyor and is carried by crank means to travel in an orbital path where the orbit carries the mounting arm in the direction of movement of the conveyor for the first portion of the orbit at the termination of which the orbital path returns the mounting arm to a second position relative to the conveyor for a second cycle over the conveyor, including a height adjusting arrangement to adjust the clearance between the mounting arm and the conveyor.

Abstract: Method and apparatus for web break detection employing a sonic signal generator to generate regularly repetitive sonic signals of selected frequency, duration and time spacing between signals and disposed to direct the sonic signals toward a moving web of selected material so the signals are reflected from the web, a receiver device to receive the reflected signals, a time signal generating device to generate signal pulses during the time period between the generation of a sonic signal and receipt of the reflected signal a counter device to count the time generated between the transmission of the sonic signal and the reflected signal so that the number of time signals generated is indicative of the presence of the web as well as the distance of the web from the signal generator and receiver and a logic system to actuate a cutter mechanism to cut the web if it should fall outside a preselected "window" in which the web is positioned.

Abstract: An anti-syphon, frost-proof hydrant including a lower body having a fluid inlet, and a fluid outlet defined therein, with a valve seat provided within the outlet where standpipe enclosure member is provided and adapted to be secured to the lower body around the valve seat, to provide a fluid conduit, having and outlet end connected to an upper body having a fluid inlet communicating with the standpipe outlet and a fluid outlet, a valve operator carried by the upper body including a stem member extending downwardly through the upper member and the standpipe and adapted to carry a valve member on the end thereof disposed in aligned relation with the valve seat so the valve member outlet is open and closed by movement of the stem member and where an anti-syphon drain port is provided in the lower body member and adapted to receive an anti-syphon drain device including an enclosure defining a chamber, and adapted to be received in the port, where valve seat means are disposed within the chamber with valve means o

Abstract: An elongate elastomeric seal member including a first portion to be partially received in an elongate groove of a selected element where the groove has opposite sides and a base connecting the sides and a second portion extending outwardly from the opposite edges of the groove to sealably engage a sealing surface adjacent the element where fluid pressure is selectively applied to at least one side of the seal and where the seal, in cross section, includes a central body with first and second spaced feet extending outwardly therefrom to be received in the groove and engage the sides and base of the groove and third and fourth feet extending outwardly from the central element to slidably engage the sealing surface wherein fluid can be applied to at least one of the third and fourth feet to urge one of said third and fourth feet to sealing relation with said sealing surface.

Abstract: A cover for the top of an automobile, having a front window, side windows, and a rear window surrounding a passenger compartment of the automobile and where the top of the automobile provides removable, self supporting covers carried by a frame assembly in the top of the automobile and where the edge of the frame adjoining the rear window of the automobile has a lip along a portion of the juncture between the removable covers and the frame where the cover provided by the present is a flexible sheet of material sized to cover the top of the automobile and the openings and includes a front flap at one edge of the cover to extend downwardly over the windshield, opposed side flaps to encroach over the side windows, and a rear edge carrying a flexible, compressible, generally circular cross section seal member, and strap means connected to the rear edge of the cover and extending outwardly therefrom and further where suction cup devices are provided on the side flaps to be secured to the side windows of the automo

Abstract: The present invention discloses a heat recovery apparatus, for example for use in a fireplace having a firebox with an upwardly directed flue of selected peripheral configuration communicating with the firebox and having an atmospheric outlet.

Abstract: The present invention provides a fuel consumption testing arrangement for use in the analysis of internal combustion engines having fuel carburation device, including a fuel source, a constant rate fuel pump communicating with the fuel source to receive fuel from the fuel source and deliver a selected rate of fuel, fuel pressure regulator to receive fuel from the fuel pump and supply the fuel at a selected pressure, a fuel flow transducer device communicating with the outlet of the fuel pressure regulator to measure the rate of flow of fuel from the fuel pressure regulator and having an outlet including a connector to connect the supply from the flow transducer to the carburetor of the internal combustion engine to be tested, a source of electrical power to deliver a smooth flow of current to drive the fuel pump, speedometer to sense the speed of rotation of the internal combustion engine under test, and a computation device to inter-relate the speed of rotation of the internal combustion engine under test an

Abstract: A fishing float arrangement including first and second body members with a slot extending to a central aperture to retain a fishing line. A cam member with electrical contacts is disposed between the body members to allow switching a battery powered light within the body portion.

Abstract: A sight mount for a firearm having a receiver and stock to carry a barrel where the mount includes a U shaped body having first and second leg means extending outwardly therefrom in generally spaced parallel relation so that one leg is received on either side of the receiver and where the legs have at least one aligned aperture adjacent the lower edge thereof for attachment to the receiver and where the first leg of the mount has a first notch to expose the ejection port of the receiver and a second notch to receive a pin carried by a bolt provided in the receiver.

Abstract: An anvil for use in ultrasonic apparatus for welding two thermoplastic sheets where an ultrasonic vibration transmitter is provided having a working surface in contact with one side of one of the sheetlike materials and located in cooperative relation with opposed spaced anvil surfaces located on the opposite side of the sheetlike elements opposite the transmitter for producing welds in the material therebetween and where the anvils are elongate, hollow, and have a slit extending longitudinally thereof.

Abstract: Apparatus for continuous electroplating of selected portions of elongate metallic articles. The articles are carried in spaced relation between cooperating longitudinally aligned first and second conveyor belts with the portion of the article to be electroplated internally and/or externally extending downwardly from the belts with a contact portion of the article extending upwardly from the belts where the portion to be electroplated is then passed through an electroplating station including selected electroplating solution in a cell in contact with the electroplating solution while a direct current potential is applied between a contact strip in contact with the contact portion of the article and the electroplating solution.

Abstract: Method and apparatus for continuous electroplating of selected portions of elongate metallic articles including a moving conveyor with spaced apertures therein to receive the articles so the portion of articles to be electroplated extending downwardly from the conveyor whereby the portion to be electroplated is pass through cells containing processing liquid as the conveyor moves and the articles contact the liquid in the cells.

Abstract: A fluid filter arrangement particularly useful in removal of selected impurities from drinking water including a hollow casing means to receive a selectively removable top end, and bottom end, defining a chamber and having an inlet in the top end for admission fluid to be treated and an outlet in the bottom end for emission of treated fluid, replaceable treating material retention means having a sidewall of generally the same shape as the inner wall of the casing so the sidewall of the retention means engages the sidewall of the casing in sealing relation where the retention means includes a concave fluid porous inlet end to be disposed in communicative relation with the fluid inlet and fluid porous outlet end opposite the inlet end communicating with the fluid outlet from the casing, where the replacable treating material means is designed to be replaced by terminating the flow of fluid to the hollow casing means by a method known in the art and removing the top end of the casing means.

Abstract: A multiple program input audio system including a plurality of input channels each adapted to provide an output program signal. Each channel comprises an actuator which compares a rectified program signal with a reference signal and generates an actuator output signal when the rectified signal is greater than the reference signal. A zero crossing detector also receives the program signal and generates an initiator pulse when the voltage of the program signal is zero. A master control switch receives the actuator output signal and generates a first master control output signal when pulsed by the initiator pulse and generates a second master control output signal when no signal is received from the actuator. A program switch receives the program signal and in response to the first master control output signal applies the program signal to an audio program buss where the program signals from all the channels are summed and applied to a digital attenuator.

Abstract: A low impedance digital attenuator to selectively attenuate an alternating current composite program signal composed of output program signals from different input channels in accordance with the number of active input signals where each input channel includes an input channel control device to provide an actuating signal when the channel is in selected operating mode and a program output signal. The actuating signals of the channels are summed and converted to a digital signal. The digital signal is supplied to a converter to generate a digital control signal where the relationship between the digital signal and the digital control signal is nonlinear. First and second digital to analog converters are provided to receive the digital control signal and a reference signal. The first digital to analog converter attenuates the composite program signal as a function of the digital control signal and provides an attenuated composite program signal.

Abstract: Multiple input sound amplifying and activation system including at least two microphones where an input channel is provided for each microphone. Each input channel provides a rectified signal to a summing device which sums the signals from the channels to generate a reference signal. Each input channel also includes a comparator to compare the reference signal with the signal received by the channel and provides a first control signal and second control signal in response to ratio between the reference signal and the channel input signal. The control signals operate a program signal amplifier to provide a program signal to an attenuator which attenuates the signal in response to the number of active channels.

Abstract: An insertion device for insertion of a soft deformable tampon made of resiliently deformable material where the insertion device includes a pair of telescoping elements including a first tube and a second tube of lesser diameter to be received in compressed condition within the first tube with an end of the second tube bearing on the innermost end of the tampon and a generally planar flexible, deformable stop means carried by a string means and movable therealong where the string is attached to the innermost end of the tampon, second stop means provided at the opposite end of the string means to prevent release of the first stop means from the string and the first stop means is received in flexed condition within the tube means.

Abstract: Flow control arrangement for use in a heating process utilizing multiple heat sources at different temperatures to transfer heat to a selected fluid circulated through the sources including at least one first heat source at a first temperature and having a fluid inlet means to receive the fluid and fluid outlet means adapted to emit the fluid, first valve means to control flow of fluid to the first heat source inlet, at least one second heat source at a second temperature having fluid inlet means to receive the fluid and fluid outlet means to emit the fluid, second valve means to control flow of fluid to the second heat source, a source of fluid adapted to supply the fluid to the first and second valve means, conduit means connecting the second heat source fluid outlet with the first valve, conduit means connecting the first heat source fluid outlet with the second valve means and controller means to actuate the first and second valve means and the source of fluid to direct fluid flow to one of the first and