Abstract: A VHF tuner circuit comprising an oscillator for generating a harmonic which is close to the RF frequency, including resonant circuit means for providing a low impedance path for coupling the desired harmonic current to the mixer and for providing a high impedance path for all the other harmonics, thereby suppressing the reception of spurious signals.

Abstract: A low profile transformer includes an E - I core having two outer legs and center leg. A pair of connecting pin headers have recesses in friction-fit contact with the inner portions of the outer legs; each header is also recessed, at each end, and is in friction-fit contact with the inner portion of the E-core which joins the legs and the I-bar. A coil wound bobbin on the center core leg has flanges which abut and brace against the pin headers to secure said headers in position. Pins on the headers enable mounting on a printed circuit board.

Abstract: A portable shaving kit includes a tubular member having a socket opening and one end with a support arm having a socket within the socket opening. The support arm is movable between stored and operative positions and is held in two positions by a spring-biased detent and has a blade support at the outer end thereof. The blade support is pivoted between the stored and operative positions so that the blade can be housed in a hollow cap during storage.

Abstract: A mirror package for the display, handling and transporting of mirrors or like flat, rigid, yet relatively fragile, articles, being formed from a single blank of sheet material to which the mirror is rigidly and permanently affixed. The sheet material includes a central panel, larger in all directions than the mirror which is affixed thereto in spaced relation from all edges of the central panel, and forwardly folded flanges held rigidly in the forwardly folded relationship. The central panel is adapted to be severed by a consumer leaving the portion behind the mirror to function as a permanent backing for the mirror.

Abstract: A hair cutting device includes a housing defining a passage having an inlet and outlet with a cutter and an impeller between said inlet and outlet. A hair directing apparatus is positioned between the cutter means and the impeller to direct the hair to the periphery of the cutter and the inlet is adjustable with respect to the inlet. The cutter includes two blades one of which is rotated with an output motor shaft and the other is reciprocated on the output shaft. The drive motor is reversible and a heating element can be attached to the outlet to convert the device to a blower-dryer.

Abstract: An apparatus for the elimination of fumes and odors from exhaust gases simultaneously with the recovery of heat from such gases and, in particular, a rotating control means for controlling the flow of such gases, in sequence, through heat exchange chambers and a central purification chamber of such apparatus wherein the gases are preheated and incinerated to remove fumes and odors. The apparatus has annular inlet, exhaust and purging ducts located adjacent a number of heat exchange chambers disposed adjacent a purification chamber. The flow of gases from and to the ducts through selected heat exchange chambers is maintained by a rotating control means disposed between the ducts and the heat exchange chambers.

Abstract: An intrusion alarm system for use such as in homes including an ultrasonic motion detector having means for selectively actuating switch means for a light and a sound alarm. The circuit includes a transducer for emitting a beam of ultrasonic energy and a sensor for detecting the modulation of the ultrasonic energy by movement occurring in the beam. The sensor provides a signal in response to said modulation to turn-on an electric light, and to turn-on a sound alarm.

Abstract: A food container for the transport of a hot prepared meal having a dish or tray portion and a cover, both of which are insulated and engageable to form a seal which retains the flavor and warmth of the food within. The cover has a handle which may be laid flat to allow a like container to rest on it in a stable manner. The dish portion has a plurality of sections, one of which may contain a cup for beverages.

Abstract: An improved low cost screen printing apparatus for printing on both flat and curvilinear objects. Two vertically aligned shafts support the printing head and, by following the pivotal motion of an arm, raise and lower the printing head relative to the object being printed with a straight vertical displacement, resulting from the controlled movement of the upper shaft cooperating with arcuate channels formed in the end supports. The squeegee assembly operates in a timed relationship with the raising and lowering of the screen head to alternately lower the squeegee and raise the flood bar for forcing ink through the screen in the print cycle and raise the squeegee and lower the flood bar to flood the screen on the return cycle. When the screen is in the raised position, the squeegee assembly and screen frame are selectively connectable to a reciprocating carriage, for printing either curvilinear or flat objects.

Abstract: A method and apparatus for effecting an efficient heat transfer between a shelf and a tray of a freeze drying apparatus. A unique method comprising the steps of placing two halves of the shelf on a bowed jig and welding together forms a hollow shelf having a substantially flat heat transfer surface on which a tray containing materials to be freeze dried may be placed. Throughout the shelf interior circulates a heat transfer fluid. The tray and the freeze drying chamber have mating hold-down rails which bias the tray against the shelf surface to effect superior heat transfer.

Abstract: A hitting device particularly adapted for use in the practice of martial arts, such as karate, which may be mounted on a vertical wall or post and carries a desired hitting surface. The bellows portion contracts when contacted axially to absorb the impact of the hitting force. Closable vents are provided in association with the bellows portion to allow for variation of the compressibility of the bellows, thereby varying the resistance to the hitting force by the hitting device. A force indicating assembly is also mounted on the hitting device for approximately indicating to a student the hitting force applied.

Abstract: A method and apparatus for packaging fluent material in individual containers, including a dispensing mechanism for locating individual containers in transverse rows on a moving conveyor belt, a filling pump assembly for simultaneously filling individual cups located in a series of such transverse rows with a predetermined amount of such fluent material during the movement of the conveyor, a covering assembly for applying strips of preformed covers to a plurality of filled individual containers simultaneously, and thereafter fluid-tightly sealing such covers to the containers, and a severing assembly including a series of rotating knives for severing the covers so applied to form individual filled and sealed containers.

Abstract: Portable lawn care apparatus is disclosed which includes attachment assemblies for converting to a mobile vacuum, a shredder/chipper, a blower or a stationary vacuum with a hand-operated flexible hose.

Abstract: An apparatus disposed in a speedometer-odometer drive assembly for transferring and translating the rotation of a speedometer drive cable to a speedometer needle registering speed and an odometer registering distance, having a field cup disposed at one end of a drive shaft in communication with the speedometer cable and rotatable about a central axis with this shaft. The rim of the field cup is discontinuous at at least one point about its periphery by virtue of a cut or split being upset with respect to the radial plane of the surface of the field cup rim. These cut or split edges of the field cup rim act to engage successive threads or teeth on a gear means driving the odometer as the field cup rotates. A flux cup is inserted into the field cup to cover a magnet mounted within the field cup. The flux cup responds to the magnetic field created by the rotating magnet, thereby driving said speedometer. The gear means driving the odometer comprise a camming means fixedly mounted on a face gear.

Abstract: A food plate package having a bottom plate and a top cover for the temporary storage of prepared food products, the top cover being convex-oval, with support ribs integrally formed in the cover. The support ribs provide a raised flat surface to stably support another food plate package when stacking one on top of the other. Channels are provided between the support ribs for an air space between adjacent packages when stacked and the subsequent dissipation of overly high temperatures in the central portion.

Abstract: A feed and takeoff assembly particularly adapted for use in connection with a printing press to automatically transfer generally flat stock from a first position to a print position and to a delivery position, having a frame, a transfer carriage mounted for movement along the frame, a single elongated feed gripper mounted near one end of the transfer carriage and disposed transversely to the path of travel of the carriage along the frame, and a low profile delivery gripper mounted near the opposite end of the transfer carriage for movement therewith along the frame. The single elongated feed gripper is capable of repeated precisely registered movement along the frame through a spring-biased cam-operated guide means. The delivery gripper acts to remove an entire sheet of printed stock at a desired time by a cam-operated opening and closing of pivotally mounted upper and lower jaws.

Abstract: A feed and takeoff assembly particularly adapted for use in connection with a printing press to automatically transfer generally flat stock from a first position to a print position and to a delivery position, having a frame, a transfer carriage mounted for movement along the frame, a single elongated feed gripper mounted near one end of the transfer carriage and disposed transversely to the path of travel of the carriage along the frame, and a delivery gripper mounted near the opposite end of the transfer carriage for movement therewith along the frame. The single elongated feed gripper is maintained in constant registered position during movement along the frame by a spring-biased cam-operated guide means. The delivery gripper acts to remove an entire sheet of printed stock at a desired time by a cam-operated opening and closing of upper and lower jaws mounted on a common pivot print.

Abstract: A freeze drying apparatus of the manifold type having a generally horizontal free standing condenser tube enclosed within a removable hollow manifold having a plurality of ports formed in it for communication with the interior of containers having specimens to be sublimated. The condenser tube is disposed generally along the central axis of the manifold so that the distance between the condensing surface and the manifold ports is relatively short and constant to provide fast and uniform sublimation. The condenser tube is packed with a woven copper mesh to provide increased surface area for wetting by the refrigerant fluid thereby increasing the condenser capacity and reducing its temperature. The location of the condenser tube within the manifold provides a single volume to be evacuated and speeds system recovery as new materials are added to the system.