Bizarre Patents
Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 6957806 | Airspring assembly An improved airspring assembly includes a collapsible support member disposed within the pressurizable chamber of an airspring having a flexible sidewall. The support member is configured such that it extends and collapses along a longitudinal axis of the chamber re... | 10/25/2005 |
| 5427013 | Vacuum motor An improved vacuum motor for actuating heat, ventilating and air conditioning control systems (HVAC), which uses a conical spiral spring and a bonded connection between the housing and cap to reduce weight, size, cost and noise. The motor includes a bello... | 06/27/1995 |
| 5096009 | Method and arrangement for displacing forces In a method for displacing forces, particularly loads (P), either a force (P) acting on a guide surface (23) is reduced by an opposing force and simultaneously displaced, or a pressing force (P) is caused to act on a guide surface (23) in order to produce... | 03/17/1992 |
| 4896753 | Bicycle brake A bicycle brake system with at least one master cylinder that is connected to a hand lever, and at least one wheel cylinder that is connected thereto by a hydraulic brake line is to be improved in that a hollow body (38) that is of elastic material and cl... | 01/30/1990 |
| 4800939 | Anti-skid device A chain-carrying pulley (1) is journalled on a shaft (3) fastened to an arm (4) pivotally connected to another arm (5) which in turn is rigidly fastened to the rear axle casing (6) of a vehicle. An inflatable bellows (7) extends between the arms. When inf... | 01/31/1989 |
| 4615258 | Drive device operated by a pressure fluid In a drive device operated by pressure fluid a progressive linear or swinging or rotary movement of a driven element is produced by means of at least one lifting element. Between the lifting element and the driven element there is arranged at least one we... | 10/07/1986 |
| 4402158 | Toy employing governor to control rate of movement of movable member A toy has a housing in which is movably mounted a primary movable member. The primary movable member moves from a first position to a second position. The toy includes a first mechanism for moving the primary movable member from the first position to the ... | 09/06/1983 |
| 4308788 | Fluid pressure responsive apparatus A differential pressure unit having overrange valves loosely mounted on a valve stem connected between the ends of a respective pair of movable bellows ends. A pair of spiral range springs bias both valves toward open positions. The valves include annular... | 01/05/1982 |
| 4227444 | Aneroid bellows assembly Aneroid bellows assembly utilized in the emergency oxygen supply systems of aircraft includes a leaf spring mounted at its center to an adjustably positioned end fitting located on the axis of an evacuated bellows spring. The outer edges of the leaf sprin... | 10/14/1980 |
| 4136802 | Spray dispenser with spring biased flexible container A dispensing unit which may be readily incorporated in an enclosure, such as a conventional can. The dispensing unit includes a readily collapsible bag in which a product to be dispensed is stored, and a plurality of spring strips. Each of the spring stri... | 01/30/1979 |
| 4134306 | Rotary actuator A rotary actuator for converting reciprocating motion to rotary motion including a housing having spaced-apart end plates connected by guide rods. A bellows is provided having opposite sides one of which is connected to one of the end plates, the bellows ... | 01/16/1979 |
| 4066091 | Pressure switching valve device A pressure switching valve device including: a valve adapted to open and close an orifice defined in a valve seat; a diaphragm cooperating with the valve and so loaded as to maintain the valve in its open or closed position; and an atmospheric density com... | 01/03/1978 |
| 4010674 | Speed responsive systems An actuator device includes a chamber partly bounded by a movable wall and connected to atmosphere through a permanently open orifice and an electromagnetic valve which is maintained in a closed position when de-energized and which controls the connection... | 03/08/1977 |
| 4004608 | Suction throttling valve A suction throttling valve is provided which is especially adapted for use as a part of a compact unit consisting of a thermostatic expansion valve, suction throttling valve, and a receiver-dryer, in an automotive air conditioning system. The suction thro... | 01/25/1977 |
| 3935795 | Actuating mechanism An actuating mechanism for moving an indicator, an operational tool or a structual component with a high degree of precision over precisely predeterminable distances to desired points of operation, which comprise a shaft, slidably mounted upon said shaft ... | 02/03/1976 |
