Chucks or sockets – Expanding – Fluid-pressure actuator
Patent
1990-10-03
1992-12-29
Bishop, Steven C.
Chucks or sockets
Expanding
Fluid-pressure actuator
279 207, 279 209, 279 403, 279 406, 403269, B23B 3130
Patent
active
051745852
ABSTRACT:
The invention relates to an adjustable fastening device e.g. for an axially-shaped, tubular, flat or spherical tool or working piece or machine part or a like of a desired shape. The device includes: a body section (1), a clamping means (2), mounted within the body section (1) and at least partly pressable/squeezable indirectly or directly against a piece (10) to be fastened. Between the body section (1) and the clamping is provided a space (3), which is pregreased for a medium effecting said pressing/squeezing. The medium comprises in situ cast elastomer (5) whereby, upon the application of pressure on elastomer by means of a screw, a piston or the like, said elastomer (5) delivers by way of its displacement and/or deformation said pressure to clamping means (2) which thus presses/squeezes against a piece (10) to be fastened and, upon releasing said pressure, the elastomer (5) returns to its initial state.
REFERENCES:
patent: 2324225 (1943-07-01), Mueller
patent: 2553990 (1951-05-01), Vidal
patent: 2652749 (1953-09-01), Hagmeister
patent: 2794661 (1954-07-01), Sears
patent: 2826420 (1958-03-01), Klingler
patent: 2852287 (1958-09-01), Baker
patent: 2911222 (1959-11-01), Eve
patent: 3259020 (1966-07-01), Walker
patent: 3497226 (1970-02-01), Hohwart
patent: 4430017 (1984-02-01), Stefancich
Erfindung- und Vorschlagswesen, "Hydroplast-Schleifdorn", vol. 13, No. 5, May 1964, p. 225, by Stanki i Instrument.
Bishop Steven C.
Unicraft Oy
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