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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 |
| 5452776 | Block brake for rail vehicles Rail vehicles have a brake linkage being acted on by a brake cylinder for acting on at least one wheel set of a bogie, truck or running gear of the rail vehicle through brake blocks having brake block shoes and brake block shoe inserts. A block brake for ... | 09/26/1995 |
| 4563043 | Dual-circuit master valve A dual-circuit master valve for hydraulically actuated power brakes is diosed. An equalizing device in the valve assures a uniform build-up of pressure in both brake circuits. Even if one brake circuit fails, the equalizing device assures dependable oper... | 01/07/1986 |
| 4553642 | Brake arrangement for single axle wheel truck of railway car The brake beams of a single axle railway car wheel truck are swingingly suspended from a body portion of the car and engage with the axle housings of the wheel and axle assembly to enable the brake beams to move laterally and longitudinally with the wheel... | 11/19/1985 |
| 4420065 | Railway brakes A tread brake for braking a wheel (2) of a railway vehicle which is sprung relative to a frame (4) of the vehicle, comprises an actuator (5) suspended from the frame (4) by a swing arm (6), and a rigid link arm (7) fixed to the actuator (5) and connected ... | 12/13/1983 |
| 4402388 | Adjustable broke rigging for rail vehicles A braking apparatus for rail vehicles has a brake actuating unit to one side of the vehicle wheel. A pair of brake shoes oppositely disposed on both sides of the wheel can be pressed against the contact surface of the wheel. A first vertical braking lever... | 09/06/1983 |
| 4381713 | Convertible rail-highway semi-trailer air controlled braking and suspension shifting system An air control system is provided for a vehicle convertible between highway and railway modes of travel. Air springs suspend a rail-wheel set axle unit and highway wheel-set axle units from the vehicle body so that the one wheel-set axle unit is stored in... | 05/03/1983 |
| 4316418 | Convertible rail highway semi-trailer air controlled suspension shifting system An air control system is provided for a vehicle convertible between highway and railway modes of travel. A main body on the vehicles includes a highway wheel-set axle unit and a rail wheel-set axle unit. The vehicle is designed so that one wheel-set axle ... | 02/23/1982 |
| 4202277 | Convertible rail-highway semi-trailer A convertible semi-trailer having over-the-road or highway running gear with rubber tired wheels and a flanged rail wheel-set and bogie, the body being supported upon said highway running gear and upon said railroad bogie independently by air spring means... | 05/13/1980 |
| 4136760 | Clasp brake rigging for a railway vehicle A clasp brake rigging is provided with an axially acting brake regulator coupled between a pivotable control lever and a rigging pull rod opposite the dead brake lever. The control lever at an intermediate position is coupled by an adjustable length link ... | 01/30/1979 |
