Motors: expansible chamber type – Miscellaneous
Patent
1985-05-13
1987-01-13
Look, Edward K.
Motors: expansible chamber type
Miscellaneous
285187, 285228, F15B 100
Patent
active
046355332
ABSTRACT:
An improved universal expansion joint having counterthrust means for controlling pressure-induced expansion. Movable bellows means in the form of one or more expansible bellows or one or more contractile fluid power cylinders are disclosed for applying counterthrust force to the expansion joint. Means responsive to the pressure within the expansion joint or the temperature of or the strain on the conduit connected to the expansion joint are disclosed for applying the desired fluid pressure to the bellows means to achieve the proper counterthrust force. Also disclosed are a method of employing the improved expansion joint and a system in which the improved expansion joint is advantageously utilized.
REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 2348833 (1944-05-01), Miller
patent: 2545701 (1951-03-01), McCausland
patent: 2721746 (1955-10-01), Schimdler
patent: 3889985 (1975-06-01), Gartmann
patent: 4099746 (1978-07-01), Kontsch et al.
patent: 4202247 (1980-05-01), Hunkar et al.
Look Edward K.
Phillips Petroleum Company
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