Fluid-pressure and analogous brake systems – Locks
Patent
1976-07-26
1977-08-09
Halvosa, George E. A.
Fluid-pressure and analogous brake systems
Locks
60569, 137495, 137589, 13762534, 13762535, 188353, 192 3H, B60T 1716
Patent
active
040406750
ABSTRACT:
A vehicle anti-theft device which maintains the braking function of the braking fluid by preventing reverse flow thereof from the wheel cylinder back to the master cylinder until, following an authorized procedure, an interconnecting fluid passage is moved into a strategic position which allows this reverse flow. As an improvement over the prior art, the direction of application of the braking fluid is arranged to assist, rather than impede, the strategic positioning of the aforesaid interconnecting fluid passages as well as contribute to other noteworthy advantages in the operation of the within device.
REFERENCES:
patent: 3298471 (1967-01-01), Evans
patent: 3410610 (1968-12-01), Cumming
patent: 3625573 (1971-12-01), Conn
patent: 3973803 (1976-08-01), Seward et al.
Parmer Edward
Parmer, Jr. Edward G.
Richmond Raymond
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