Brakes – With condition indicator – Electrical
Patent
1978-08-01
1980-09-23
Halvosa, George E. A.
Brakes
With condition indicator
Electrical
248580, 248621, 248638, 267122, 267153, 267182, 308184R, 308230, F16F 700, F16F 1100
Patent
active
042237629
ABSTRACT:
In an air or gas spring having a metal cylinder with a rigid gas-tight closure at one end and a flexible convoluted diaphragm seal and piston at the other end, the piston has an inner floating member restrained vertically by hardened roller balls that ride in a hardened ball race and horizontally by elastomer spring material.
REFERENCES:
patent: 1766597 (1930-06-01), Bushnell
patent: 2551621 (1951-05-01), Michelsen
patent: 2614896 (1952-10-01), Pierce, Jr.
patent: 3128978 (1964-04-01), Sykes
Halvosa George E. A.
Hieken Charles
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