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Patent # Description
US-4,008,693 Rotary engine
A rotary combustion engine having intermeshing rotors, and provided with external transfer passageways which connect the rotor chambers and function as...
US-4,007,712 Water heater
A generally cylindrical housing containing a burner underlying a fluid conduit formed to provide a plurality of interconnected concentric helical coils, the...
US-4,006,564 Foldable hand rail and seating structure
A seating and hand rail structure which is foldable from a normal seating position into a folded storage position in which the rail as well as the seating...
US-4,003,407 Drip-preventing condensation shroud usable with water heaters
A condensation reducing shroud assembly positionable around the inlet pipe of a water heater or the like. The assembly consists of a sleeve element which is...
US-4,003,297 Hydraulic cylinder
A hydraulic cylinder assembly for farm machinery or the like including a tubular elongate cylinder with a smooth inner cylindrical wall and a fluid inlet at a...
US-4,002,736 Porcine bacterin
An adjuvanted Streptococcus equisimilus bacterin used to impart specific immunity in swine for Streptococcus equisimilus types 1 and 2 and probable cross...
US-4,002,338 Amusement game device
An amusement game device played by two people having an arcuate playing surface supported above the surface of the ground by a support system, a plurality of...
US-4,002,147 Bale handling apparatus
Apparatus for handling and feeding large hay bales comprising the separable, cooperative, combination of a coupler unit adapted to be attached to a three-point...
US-4,000,552 Hydraulic hose skiving machine
A machine for preparing hydraulic or any other type of hose to receive metallic couplings. Hose in desired inches or feet of length cut from a longer supply may...
US-3,999,520 Livestock feeding apparatus
A livestock feeder having a plurality of animal feeding openings includes feed-holdback apparatus for preventing unnecessary waste of feed. The feeder comprises...
US-3,995,832 Collapsible bleacher rail
A collapsible bleacher railing in conjunction and for use with a collapsible bleacher section or sections, which includes normally vertical, upright, support...
US-3,994,295 Hypodermic syringe needle mounting
An adapter device for mounting a hypodermic needle on a syringe barrel consists of two telescoped elements the outer of which is a casing or shell and the inner...
US-3,991,506 Fishing line float
A fishing line float is provided with a spherical body having a tapered slot therein for engaging a fishing line and holding the float in a desired position...
US-3,990,451 Surgical instrument
A surgical instrument for making a closed periphery incision, preferably navicular in shape, comprises a handle including an enlarged cutting head rigidly...
US-3,990,008 Display circuit for battery powered digital meter
A digital meter incorporates a circuit which senses the input voltage and automatically energizes a digital readout device only if the input voltage is greater...
US-3,990,002 Method and apparatus for testing television yokes and flyback windings
A plurality of capacitors are successively connected across a coil while a train of driving pulses is applied thereto to cause the coil to ring after each...
US-3,989,065 Liquid transfer apparatus
A fluid transfer apparatus for transferring gasoline, for example, to a bottom loading tank truck wherein a standpipe, rotatable about its vertical axis, is...
US-3,987,811 Control valve mechanism for cleaning apparatus using fluids
Mechanism for controlling flow of cleaning fluids under pressure to a discharge nozzle of cleaning apparatus using steam or hot water for industrial cleaning...
US-3,987,562 Quick connect snow plow implement
A snow plow implement for quick connection to a vehicle. The moldboard of the implement is mounted for yieldable but limited pivotal movement on the forward end...
US-3,984,540 Method of therapeutically treating damaged and/or infected tissue in warm blooded animals and compositions therefor
Tissue in warm blooded animals which is damaged and/or infected is treated by administering a therapeutically effective amount of a novel catalyst or synergist....
US-3,982,471 Seal in pump piston intermittently permitting conduction of pump fluid
An improvement in liquid pumps having a piston with a packing surface which reciprocates in contact with a cylinder, comprising means for increasing the life of...
US-3,976,315 Gate lock
A gate lock for locking a gate to a fence which comprises a first arm mounted on a fence post for rotational movement relative thereto and a second arm having a...
US-3,975,857 Rodent trap
An improved rodent trap for use where sanitary conditions are required. The trap housing includes a rodent activated trip mechanism which dislodges a door prop...
US-3,973,561 Eye patch for large domestic animals
An eye covering for a large domestic animal adapted to protect the eye in the event of an infection or disease. The covering is formed of material such that it...
US-3,972,541 Load coupler for trailers
A drawbar on a trailer is provided with a pair of vertically extending coupling arms which are notched at their bottom ends to fit around a round coupling bar...
US-3,971,154 Trolling planer
A trolling planer having an adjustable means to control the depth at which a fish lure will be towed comprising threaded means to move the position of the towing...
US-3,970,048 Low pressure steam generator
A low pressure steam generator including a water tube structure of plural, substantially annular coaxial portions each connected individually by separate...
US-3,969,931 Power tester for outboard drive assemblies
A hydraulic pump is serially connected in a closed loop hydraulic circuit provided with a control valve for controlling the flow of hydraulic fluid through the...
US-3,969,167 Nitrocellulose explosive process involving a ketone
High explosives and propellants made by combining a nitrated cellulose with a ketone or ketone derivative.
US-3,969,133 Method for self-cleaning a restroom
A restroom is automatically cleaned by moving a vertically disposed spray boom in a manner so as to generally track the interior periphery of the restroom...
US-3,969,035 Slip from paving machine
A slip form paving machine for forming curbs, gutters, barriers and other structures in a continuous process. The machine is mounted on three steerable and...
US-3,968,801 Calf puller
A calf pulling device comprising an elongate rectangular shaft with a multiplicity of apertures formed therein along the length thereof, with a rotatable...
US-3,968,771 Process and apparatus for applying pesticides to granular materials
A process for applying a pesticidal composition to granular vegetative products such as grains and seeds, which comprises: 1. loading and compacting a granular...
US-3,966,100 Lock for coats and other sleeved garments
A clothing hanger member of conventional shape has symmetrical right and left sides, each with its own end. Reel means is attached to the left end of the member...
US-3,965,456 Vehicle safety device for monitoring the operation of directional signal lamps
A vehicle safety device for monitoring directional signal lamps comprises a plurality of directional signal monitor lights positioned on the dashboard of a motor...
US-3,962,998 Limited feeder for farm animals
An elongated wall structure providing a plurality of feed troughs in a row in side by side relationship for individual feeding of animals from an overlying...
US-3,960,110 Animal facility equipment
An animal facility, having a movable assembly and means for moving it along an alleyway, is equipped with means for emergency reversal of the direction of travel...
US-3,959,910 Fishing signal device
A fisherman's accessory which is readily and removably attached to rods of different sizes, and in which a drum switch of special design completes a circuit to...
US-3,958,823 Automatic gate for a bale accumulator
An improved gate for a bale accumulator which prevents bouncing of the latching mechanisms so that the gate passes by and is unlocked. Automatic bale...
US-3,955,837 Latch
A latch including a handle operative only in response to a grasp-like pull. In a preferred embodiment, the handle comprises a rod bent into a general C-shape to...
US-3,952,705 Animal operated device for coordinated feeding of liquid and grain supplement to livestock
The apparatus of this invention more positively controls liquid feed and solid (grain) feed consumption by animals in a simple economical and efficient manner,...
US-3,951,778 Method of separating bitumin from bituminous sands and preparing organic acids
Bituminous sands are intimately contacted with an aqueous medium containing a catalytically effective amount of a novel catalyst to separate the bitumin at...
US-3,944,274 Bale handling device
A bale handling device, more particularly a bale pick-up device, includes a plurality of squared C-shaped hooks which are individually pivotally mounted between...
US-3,941,291 Pallet jig and table
An assembly for manufacturing wood pallets including a pair of spaced jigs mounted to a table or like supporting frame at a convenient working height. Each jig...
US-3,939,553 Method of manufacturing a trailer frame structure
A chassis and tilt bed support structure for a tilt bed trailer, with the chassis being comprised of a pair of elongated frame beams widely spaced apart at their...
US-3,936,072 Axle lift mechanism
A lift structure for attachment to the frame of a truck fitted with a tandem axle assembly, one of the axles being a drive axle. The structure comprises a pair...
US-3,935,696 Agricultural tool bar
An agricultural tool bar particularly well suited for use as a hay rake or the like is disclosed which may be quickly and easily moved between transport and...
US-3,934,365 Sign frame
A sign of the type generally intended for internal illumination having a sign frame, a flexible material covering at least one face of said sign frame, and means...
US-3,933,404 Strain limiting mechanism
An electrical connector assembly incorporating means for limiting cable tension to a predetermined value and precluding thereby mechanical failure of the cable.
US-3,932,727 Electrically heated riser pipe for a fluid supply system
A prefabricated water supply system for supplying water from an underground source to mobile homes or stock tank waterers and the like includes a riser pipe...
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