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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 |
| 6161657 | Mechanical lock with a cam-driven locking pawl A rack mounted within the housing of a mechanical lock translates. The rack, which has a rectangular cross-section, has teeth along one surface. A toothed pawl pivots housing between a locked and unlocked position. The teeth on the pawl engage the rack te... | 12/19/2000 |
| 6116103 | Device for securing gear nut on actuator A threaded leadscrew moves axially within the housing of a linear actuator. The leadscrew's movement rotates a threaded gear nut that surrounds the leadscrew. Stopping the gear nut rotation prevents leadscrew translation. The locking mechanism for selecti... | 09/12/2000 |
| 5819881 | Dual locking linear mechanical lock for high loads A linear mechanical lock comprises an elongated housing. A rod having a first end inserted into the housing and a second end extending out of the housing. A first lock comprising a locking spring having an end fixed in the housing and extending around a p... | 10/13/1998 |
| 5806932 | Seat adjustment and dumping mechanism with memory of adjustment A system for controlling the recline and dumping of a seat has a master unit and a slave unit. The master unit has two base plates that attaches to a seat and pivots with respect to ground. A master lock, which attaches to the base plate, allows the base ... | 09/15/1998 |
| 5778733 | Spinning nut linear mechanical lock A mechanical lock of the type having a lock housing, a rotatable nut axially captive in the housing, a threaded rod axially displaceable through the housing in threading engagement with the nut, and a detent normally locking the nut against rotation in th... | 07/14/1998 |
| 5758544 | System and method for locking out an output device when an input device is actuated The lockout mechanism selectively prevents passengers from reclining an airplane seat even though they activate the seat's recline input button. Instead of a single cable extending from the recline button to the recline actuator, the invention has separat... | 06/02/1998 |
| 5755493 | Vehicle seat and system for controlling the same A vehicle seat including a thigh support, a leg rest, a foot rest and a control system which is adapted to monitor the respective positions of the leg rest and the foot rest. The control system will either move the foot rest to a position where it will no... | 05/26/1998 |
| 5706705 | Low profile push-button mechanical remote control A push-button actuator for attachment to a Bowden type remote control cable has a frame, a lever pivoted to the frame and connected to the control wire, a plunger reciprocable through an actuating stroke transverse to the control wire for turning the leve... | 01/13/1998 |
| 5689995 | Actuator that adjusts to side loads automatically by pivoting internally The actuator includes a housing and a gear nut within the housing. A leadscrew on which the gear nut is threaded traverses the housing. As the leadscrew moves axially, the gear nut rotates. The actuator allows a manually controlled ball in a groove to pro... | 11/25/1997 |
| 5568843 | Precision linear mechanical lock A mechanical lock of the type where a rod is normally locked for axial movement through a lock housing by a spring tightly wound about the rod and axially fixed to the housing, the rod being released by partially unwinding the spring. The lock is assemble... | 10/29/1996 |
| 5441129 | Precision linear mechanical lock A mechanical lock of the type where a rod is normally locked for axial movement through a lock housing by a spring tightly wound about the rod and axially fixed to the housing, the rod being released by partially unwinding the spring. The lock housing is ... | 08/15/1995 |
| 5429217 | Hydraulic positioner with integral continuously adjustable stroke limiter A hydraulic positioner of the type having a piston movable in a hydraulic cylinder and a valve actuatable for releasing the piston for movement in the chamber is provided with a continuously adjustable mechanism for limiting the stroke of the piston. The ... | 07/04/1995 |
| 4515034 | Control mechanism for hydraulic locking device An improved cable control mechanism for releasing a hydraulic locking device by an operator from a remote location is provided with a clamping mechanism for quickly attaching one end at the control cable to the output lever assembly at the proper point fo... | 05/07/1985 |
| 4411339 | Friction lock mechanisms A mechanical lock normally preventing axial motion of a rod with respect to a housing sleeve that surrounds the rod includes a coil spring whose diameter is slightly less than the diameter of the rod so that the coil spring normally encircles and grips th... | 10/25/1983 |
| 4354398 | Control mechanism for hydraulic locking device A control mechanism for use with a hydraulic locking device to permit the device to be unlocked under control of an operator. The control mechanism includes a lever assembly fastened to the piston rod of the hydraulic control device and connected by a cab... | 10/19/1982 |
