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A method for inducing cats to exercise consists of directing a beam of invisible light produced by a hand-held laser apparatus onto the floor or wall.
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| Number | Title | Issue Date |
| 6244449 | Free fall disconnect A drum drive assembly for cranes which use a load hoist line reeled onto a load hoist line drum to lift loads allows the load hoist line drum to be disconnected from the drum drive motor to permit the load hoist line drum to rotate independent of the drum... | 06/12/2001 |
| 4653653 | Hoisting systems A safety system for overhead hoisting cranes is provided which incorporates a overload release coupling in the high speed drive shaft between the prime mover and the gear reducers driving one or more hoist drums with a dual reeving and a safety brake acti... | 03/31/1987 |
| 4566599 | Telecontrol system for cranes A control for a crane having a plurality of pressure-activated clutches with a control panel in the cab on a swingable upper works. A lightweight portable control panel is connected by an umbilical cord to the rotating joint and a switch selectively conne... | 01/28/1986 |
