Metal working – Means to assemble or disassemble – Valve applying or removing
Patent
1994-10-18
1996-07-09
Watson, Robert C.
Metal working
Means to assemble or disassemble
Valve applying or removing
292131, 29263, 29265, B23P 1904
Patent
active
055332455
ABSTRACT:
A releasible tool is provided for removing a cylindrical member such as a valve seat, a pump liner, or a bushing from machines, pumps, oil well tubing, or other devices in which it is used. The releasable tool includes a mandrel, a platform slidably mounted to the mandrel, at least two jaws pivotally mounted to the platform, and an adaptor connected to the mandrel. The mandrel has a generally bell-shaped lower end and a shank portion. The platform is slidably mounted on the shank portion of the mandrel by placing the shank portion through a central bore of the platform. The jaw members are pivotally mounted to the platform, whereby they can be pivotally deflected outward to an expanded position by the bell-shaped lower end of the mandrel when the platform slides down the shank portion. The adaptor is releasably connected to the upper end of the shank portion of the mandrel. The adaptor and platform have corresponding tapered surfaces that can be engaged to form a releasable interference fit to grab and slide the platform upward relative to the shank portion of the mandrel, which moves the jaw members away from the bell-shaped lower end of the mandrel so that they can be pivotally deflected inward to a retracted position. Thus, the tool can be selectively inserted into or removed from a cylindrical member.
REFERENCES:
patent: 229325 (1880-06-01), Luther
patent: 314243 (1885-03-01), Heathcote
patent: 813384 (1906-02-01), Kiefer
patent: 1492877 (1924-05-01), Davis
patent: 1517883 (1924-12-01), Alleman
patent: 1553171 (1925-09-01), Jones
patent: 1570338 (1926-01-01), Davis
patent: 1598887 (1926-09-01), Smith
patent: 1650023 (1927-11-01), Maxwell
patent: 1650024 (1927-11-01), Maxwell
patent: 1652857 (1927-12-01), Greve
patent: 1958330 (1934-05-01), Beard
patent: 2036665 (1936-04-01), White et al.
patent: 2098134 (1937-11-01), Cook et al.
patent: 2755540 (1956-07-01), Crozier
patent: 2847752 (1958-08-01), Simmons
patent: 2924005 (1960-02-01), Wilson et al.
patent: 3029501 (1962-04-01), Leathers
patent: 3479722 (1969-11-01), Maness
patent: 3645328 (1972-02-01), Greene, Jr.
patent: 3990139 (1976-11-01), Touchet
patent: 4068879 (1978-01-01), Torbet et al.
patent: 4507837 (1985-04-01), Hinkle
patent: 4916792 (1990-04-01), Haubus
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