Abstract: An improved panel mounting molding for framing interior storm windows of the type including a base adhesively secured to a window frame and an interlocking pane biasing strip for holding an insulating window pane against the base. Improvements include a biasing strip anchoring arrangement comprising a channel formed on said base in which the inside channel walls each carry three opposed ridges and a corresponding anchor on the biasing strip having three corresponding grooves for mating with the ridges in the anchoring channel. The biasing strip may be anchored to the base in at least two different positions providing a wide range of useful pane thicknesses.

Abstract: Air circulation and supply means for a heat generator, primarily a fireplace. The fireplace has air supply and discharge passageways such that an envelope of moving air is provided around both the combustion gas flue and the firebox and a portion of said supply air is introduced as combustion air into said firebox. More specifically, an air siphon is provided whereby both the firebox and the flue of combustion gases are substantially surrounded (except for the firebox opening) by three walls wherein relatively cold external air flows downwardly from the atmosphere between the outer wall and the intermediate wall and flows upwardly to the atmosphere between the intermediate wall and the innermost wall. An air channel is provided across and along the top of the fireplace opening and connected so that air may flow therethrough from the space between two of said walls and can be discharged therefrom into the upper part of the firebox.

Abstract: A rotary lawn mower is provided with a grass collection bag arrangement comprising a bag holder having a flexible skirt for supporting a disposable collection bag. The bag holder is mountable on a mounting plate facing rearwardly on the mower housing and close coupled to a grass discharge chute formed on the housing. The bag holder is retained on the mounting plate by a pivotally mounted lever engagable with the bag holder frame and operable in the release position to actuate an ignition grounding switch to ground the ignition system of the mower engine. The mower engine power takeoff shaft is coupled to a rotary blade which is mounted on a hub having a cylindrical brake drum fixed thereto. A spring coil brake band is disposed around the brake drum and pivotally mounted at one end to the mower housing and connected at the opposite end to a flexible cable which is connected to the bag holder retaining lever.

Abstract: A compact, lightweight pressure cooker which is particularly well-suited for backpacking and camping is disclosed. The pressure cooker assembly features two complementary mating pan sections which permit nestable, stacked engagement of one pan section within the other when disassembled. Each pan section has an annular, flanged rim which permits mutually superposed mating engagement when assembled. The pan sections are held together by clasp fasteners which are movable from a retracted, closed position of latching engagement with the assembled flanged rims to an open position in which the flanged rims are released, thereby permitting disengagement and separation of the pan sections. A curved handle is pivotally attached to each clasp and is movable from a retracted position in which the handle engages the clasp to an extended position in which both handles may be grasped and held together with one hand.

Abstract: A waste heat recovery system for use with refrigeration means and a hot water reservoir is disclosed. The system is intended for use with refrigeration means of the type including a compressor and a condenser through which a compressible refrigerant is circulated. The system includes a heat exchanger having a refrigerant passage and a water passage mutually coupled in heat exchange relation. A heat exchange circulation conduit connects the water passage of the heat exchanger in fluid communication with the hot water reservoir to permit water to be circulated from the reservoir to the heat exchanger and return. A precharged refrigerant conduit connects the outlet port of the compressor in fluid communication with the condenser and includes a pair of bypass conduit sections terminated by quick connect/disconnect coupling members for connection to the refrigerant passage of the heat exchanger.

Abstract: Disclosed is an underwater seismic exploration system utilizing a sonobuoy for the radio telemetry of seismic data signals to a remotely located receiver, the sonobuoy including circuitry for digitizing the analog signals generated by hydrophones suspended from the sonobuoy prior to the application of these signals to an RF antenna. The remotely located receiver includes an antenna for receiving the transmitted modulated digital signal information, and means for demodulating, demultiplexing, and appropriately converting the signals for either analog or digital recording of the received data.

Abstract: A surgical wrap or drape adapted for covering a patient's extremity during a surgical procedure. The drape is generally tubular in construction having two distinct sections; a first of stockinette material, preferably double-walled; and a second section formed from a liquid proof film. The second section is closed at one end and its opposite end is connected to one end of the stockinette section to form a continuous tubular wrap. In a preferred form, the second section includes a nonwoven fabric liner inside the liquid proof film and an elastic band bonded to the junction of the first and second sections.

Abstract: Disclosed is an illumination system incorporating light pipes distributing light to large numbers of building spacial units, the system employing artificial or natural light sources, light splitters, optical switches, and light fixtures or lamps. Alternate embodiments of light splitters and optical switches are also disclosed as well as a specific type light fixture employing reflector cones, lenses, and a pyramid shaped reflector.

Abstract: A system for single sideband modulation, and a method implemented by the system. The system includes a double sideband, suppressed carrier modulator and a phase locked loop circuit receiving the output of the modulator and tuned to lock to one of the sidebands of the modulator output. The phase locked loop circuit produces an output having a constant amplitude, but otherwise tracking the signal contained in the one sideband. The output of the phase locked loop is processed by an amplifier having a controllable gain. Open and closed loop circuits are provided for deriving the amplitude of the signal contained in the one sideband. The latter amplitude is imparted to the output of the phase locked loop by using the signal amplitude to control the gain of the amplifier.

Abstract: Disclosed is a voltage regulation-unbalanced voltage compensation control connected intermediate the supply and load of the polyphase system, the control including separately adjustable variable impedance elements provided by saturable core reactors for independently varying the voltage drops between the supply and load terminals for each phase. The independent adjustment of the variable impedance elements is effected by a feedback control network varying the magnitude of current supplied to the DC control winding of each saturable core reactor in response to the existing load voltages across the load terminals.

Abstract: Disclosed is an electronic sensor and control for monitoring the rate of transport of grain elevator buckets, the electronic control including a metal detector probe for sensing the passage of the buckets past the head and a control module for processing the signals from the head to produce a D-C voltage proportional to the bucket transport rate. Trigger networks responsive to the D-C voltage activate appropriate alarms and shut-down of various phases of the grain elevator operations. An automatic calibration control enables calibration of the D-C voltage for different desired rated speeds of the bucket transport.

Abstract: A filter system and method for extracting entrained lint particles from an effluent air stream prior to discharge into the atmosphere. The system and method are intended for use in combination with a cyclonic separator of the type having a vertical settling chamber for separating relatively dense fiber product from airborne lint entrained in a product stream. The filter system includes a housing forming an air stream inlet, a lint discharge outlet and a clean air outlet. A rotatable screen is interposed between the air stream inlet and the clean air outlet whereby the entrained lint is accumulated on the screen as the effluent air stream flows through the screen for discharge into the atmosphere. The accumulated lint deposit is presented to the lint discharge outlet as the screen turns. A first fan blower is coupled to the separator for inducing an upwardly moving inner vortex for entraining the airborne lint, and coupled to the filter inlet for discharging the entrained lint onto the rotatable screen.

Abstract: A power lift assembly for applying a rotary cranking force to the crank stub of a mechanical window crank in an automobile door is disclosed. The power lift assembly is intended for use in combination with an automobile door having interior and exterior side panels enclosing a compartment, a window mounted for reciprocal movement into and out of the compartment, and a mechanical crank assembly contained within the compartment and coupled intermediate the door and window. The force required to raise and lower the window is developed by an electrical drive motor which is mounted on the interior panel at a remote location relative to the crank stub. The rotary driving force developed by the drive motor is transmitted to the crank stub through a flexible drive shaft and a worm and gear assembly which is coupled directly to the crank stub.

Abstract: A waste heat recovery system for use with refrigeration means and a hot water reservoir is disclosed. The system is intended for use with refrigeration means of the type including a compressor and a condenser through which a compressible refrigerant is circulated. The system includes a heat exchanger having a refrigerant passage and a water passage mutually coupled in heat exchange relation. A heat exchange circulation conduit connects the water passage of the heat exchanger in fluid communication with the hot water reservoir to permit water to be circulated from the reservoir to the heat exchanger and return. A fluid flow restrictor is connected in series fluid circuit relation intermediate the compressor discharge outlet and the condenser for producing a pressure differential. The refrigerant passage of the heat exchanger is connected in parallel fluid circuit relation with the fluid flow restrictor.

Abstract: Disclosed are intake and exhaust assemblies for forced air intake, reciprocating piston, internal combustion engine. Alternate embodiments of the air intake valve assembly include a hollow tube defining the intake port with means operatively coupling the tube and piston to respectively open and close the intake port in response to the reciprocation of the piston. The exhaust valve assembly includes operatively interrelated valve stem, spring retainer, rocker arm, and camming assemblies for alternatingly opening and closing the exhaust port for predetermined time intervals.

Abstract: A manually operated insulation gun for injecting particulated insulation into a confined wall space is disclosed. The insulation gun includes a tubular housing for receiving a load of particulated insulation material and a piston slidably disposed within the housing for ejecting the insulation material. The piston is manually operated by means of a piston rod attached to the piston and which projects through a closed end of the housing. A plunger is coupled to the piston and the closed end of the housing for breaking up compacted accumulations of the insulation material. A fill nozzle is connected to the discharge opening of the tubular housing for directing the flow of insulation material into the wall space.

Abstract: Motor protector apparatus for independently sensing the respective positive, negative, and zero sequence currents flowing in the supply lines to a three phase motor for interrupting power to the motor whenever such positive, negative, or zero sequence components reach levels indicative of abnormal operating conditions. The protector network includes bridge means for segregating the negative and positive sequence components, indicators for visually displaying the source of the abnormality, and means for restoring power to the motor after a defined time period.