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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 |
| 4143308 | Control for variable reluctance motors A control for a variable reluctance motor, comprising a d.c. source, a power control circuit, and a command circuit, in which the power control circuit comprises main control switches in series with the windings of the motor to form terminal branches, the... | 03/06/1979 |
| 4110672 | Position coder used with a machine of variable reluctance This invention is relative at a position coder used with a variable reluctance machine to control the commutations of the stator windings on this machine, said coder being characterized by having magnetic circuits for its rotor and its stator which are id... | 08/29/1978 |
| 4032095 | Central guide system for vehicles This invention is relative to a vehicle-guiding system provided with support means and a steering means such as a roller running along a flange way, characterized in that it comprises a points system connecting a track to two tracks and formed by a point ... | 06/28/1977 |
| 4026654 | System for detecting the presence of a possibly moving object A system for detecting the distance L between two objects A and B, either or both of which may be in motion, comprising approach detector means and proximity detector means operational within overlapping distance ranges; each detector means includes an em... | 05/31/1977 |
| 3999104 | Electronic safety circuits Electronic safety circuit intended to produce an output signal in the event of wearing out or failure of one of its components, the circuit comprising a magnetic circuit having a rectangular hysteresis cycle, a control circuit connected to the magnetic ci... | 12/21/1976 |
| 3964702 | Anti-collision safety device for a passenger transport system on tracks An anti-collision safety control for vehicles travelling on tracks; the control comprises two safety loops per vehicle, linked to two common loops in a central control station. Each vehicle loop comprises control circuits for determining the distance to t... | 06/22/1976 |
