"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 4165856 | Adjustable artist's easel An easel having a flat surfaced easel board mounted upon a single pedestal, the easel board being rotatable on the pedestal about horizontal and vertical axes. The pedestal is mounted upon a support base and is adjustable in height so that the easel board... | 08/28/1979 |
| 4158321 | Casing feeder for a shell reloader A casing feeder device which attaches to and is adapted for use with a shell reloading machine. A casing hopper is mounted on the top of an upright loading tube and has a discharge opening through which casings fall by gravity rim end downwardly to the re... | 06/19/1979 |
| 4155391 | Tire traction device A traction device having a pair of cleats that mount on the periphery of an automobile tire to provide temporary traction on ice, deep snow, mud and other adverse conditions for on and off the road travel. The cleats are each rigidly mounted to a pair of ... | 05/22/1979 |
| 4151797 | Doctor blade apparatus Doctor blade apparatus having a mounting plate rigidly holding the blade. The doctor blade mounting plate is independently slidably and pivotably mounted by a ball-bearing on each of a plurality of spaced support ports and resiliently supported thereon by... | 05/01/1979 |
| 4126217 | Golf ball vending machine A coin-controlled, manually operably golf ball vending machine capable of dispensing a selected number of balls for each coin deposited in the machine. The vending machine includes a ball hopper, a ramp below the hopper defining a ball dispensing opening ... | 11/21/1978 |
| 4116614 | Oil heater having controlled oil flow An oil heater particularly adapted to burning waste oil, having oil flow control apparatus providing substantially constant flow of oil to the vaporizer pan without regard to the viscosity of the oil being burned. The flow control apparatus utilizes a pis... | 09/26/1978 |
| 4112580 | Device for determining angles A device particularly suited for use in optics, having a planar sine plate mounted for rotation about a lateral axis, with the sine plate being capable of holding an optical device such as a diffraction grating. A pivot arm member is mounted for rotation ... | 09/12/1978 |
| 4079305 | Power supply for high power loads A power supply capable of transferring power at high current and voltage levels to a load which may be highly inductive. The power supply includes an inverter for receiving DC power and inverting it to an AC intermediate signal. The intermediate signal is... | 03/14/1978 |
| 4073410 | Construction filler material dispensing apparatus Apparatus having a rectangular hopper converging downwardly to a bottom opening. A rectangular support frame supports the hopper on the ground to allow loading of filler material into the hopper by a front end loader tractor. A hanger suspends the hopper ... | 02/14/1978 |
| 4072140 | Fireplace heat loss shield A fireplace heat loss shield having a fabric cover of woven fire resistant material that is emplaceable over the fireplace opening to inhibit loss of heated room air. The cover has pockets sewn along all four edges thereof, into which a rigid, rectangular... | 02/07/1978 |
| 4068687 | Vapor recovery liquid dispensing apparatus A liquid dispensing nozzle is provided with a liquid discharge tube and a vapor recovery tube, both of which are adapted to be inserted into the fill pipe of a tank such as a motor vehicle gasoline tank. While gasoline or other volatile liquid is discharg... | 01/17/1978 |
| 4066425 | Ventilating apparatus including exhaust filter exchanger An exhaust hood with filter apparatus and having at least a fume collection chamber, an exhaust chamber and an interior wall therebetween having an opening therein through which the collected fumes may pass to exhaust. An exhaust filter exchanger is mount... | 01/03/1978 |
| 4058728 | Correction of data loss in gamma ray scintillation cameras A method of and circuitry for correcting gamma ray camera data signals for signal processing circuitry is disclosed. Pulses are artificially generated which replicate the data signals produced at the output of photomultiplier tubes of the gamma ray scinti... | 11/15/1977 |
| 4054197 | Golf ball vendor A coin-controlled, manually operable machine for vending several dozen golf balls at a time. The vending machine has a ball hopper and a ramp below the hopper defining a ball dispensing opening between them. A gate rotatably mounted at the opening, extend... | 10/18/1977 |
| 4054783 | Decompression plan device A device for calculating decompression plans prior to an underwater dive, and for monitoring the depth of a diver during an actual dive and continuously computing a safe decompression plan. The many tissues of a diver which absorb and eliminate inert gas ... | 10/18/1977 |
| 4044976 | Chocks Generally, each of my chock embodiments has one or more of the following features: a rigid body having a nonsuperficial recessed surface portion or portions on one or more of its working surfaces for saddling a rock formation; a cap portion along the top ... | 08/30/1977 |
| 4044762 | Athletic mouthguard An athletic mouthguard for use by participants in contact sports to simultaneously protect and topically treat the teeth. The mouthguard is a generally U-shaped channel molded preferably from a composition of thermoplastic resin and a fluoride compound su... | 08/30/1977 |
| D242589 | Toiletries dispenser | 12/07/1976 |
| 3957237 | Chocks Generally, each of my chock embodiments has one or more of the following features: a rigid body having a nonsuperficial recessed surface portion or portions on one or more of its working surfaces for saddling a rock formation; a cap portion along the top ... | 05/18/1976 |