Power plants – Pressure fluid source and motor – Pulsator
Patent
1978-10-24
1980-12-30
Hershkovitz, Abraham
Power plants
Pressure fluid source and motor
Pulsator
60594, 91391R, B60T 1320
Patent
active
042415829
ABSTRACT:
The device comprises a master piston and cylinder assembly the piston of which is interconnected with the piston of an assisting jack by means of a connecting element on which is articulated the brake lever. The end of the brake lever remote from the brake pedal acts on a distributor adapted to feed the assisting jack with assisting hydraulic pressure so that when a force is applied to the brake pedal and thereby to the master piston via the connecting element, the distributor directs hydraulic fluid under pressure to the assisting jack, the piston of which then applies an assisting force to the connecting element.
In the improvement of the invention, an abutment surface is provided for the brake lever located between the articulation point of the lever and its point of contact with the distributor so as to increase the mechanical advantage of the brake lever in the event of failure of the assisting hydraulic system.
REFERENCES:
patent: 2323406 (1943-07-01), Milhaupt
patent: 2372013 (1945-03-01), Rockwell
patent: 2680350 (1954-06-01), Sprague
patent: 2846031 (1958-08-01), Kelley
patent: 2959450 (1960-11-01), Gladden
patent: 3048980 (1962-08-01), Cousino
patent: 3093120 (1963-06-01), Ayers, Jr.
patent: 3707075 (1972-12-01), Cripe
patent: 3808817 (1974-05-01), Bennett
patent: 4024795 (1977-05-01), Sawyer
Hershkovitz Abraham
Societe Anonyme Francaise du Ferodo
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