Bearings – Rotary bearing – Hydraulic or pneumatic bearing support
Patent
1985-12-19
1987-03-24
Footland, Lenard A.
Bearings
Rotary bearing
Hydraulic or pneumatic bearing support
384122, F16C 3206
Patent
active
046521488
ABSTRACT:
An improved system for guiding one part relative another in an accurately defined path, both planar and linear, is disclosed. The improved system eliminates friction associated with heretofore moving parts, is characterized by simplicity and cost effectivness, and comprises a first part having a primary reference surface prepared to close tolerances and accurately defining a predetermined path and an opposed parallel secondary surface, and a second part designed for guidance by the primary surface. A fixed air pad is adjustably mounted on the second part adjacent the primary surface. A second air pad is resiliently mounted on the second part adjacent the opposed secondary surface. The resilient mounting includes a bellows. Fluid under pressure is admitted to both air pads, directly to the first and indirectly via the bellows to the second. Preferably, the fluid is compressed air.
REFERENCES:
patent: 3146037 (1964-08-01), Hooker
patent: 3578827 (1971-05-01), Smith
patent: 4378134 (1983-03-01), Eddy
patent: 4560213 (1985-12-01), Enderle et al.
El Blondeel et al "Externally Pressurized Bearings . . . " 7th International Gas Bearing Symposium Jul. 13-15, Cambridge, England.
Federal Products Corporation
Footland Lenard A.
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