Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2005-10-04
2005-10-04
Watson, Robert C. (Department: 3723)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S263000
Reexamination Certificate
active
06951049
ABSTRACT:
An extractor is provided for extracting a pin or another component which is pressed into a hole and protrudes from the hole with a cylindrical section. The extractor has a gripping element, which has a tubular basic body, is axially adjustable in a guide tube and is provided at its outer ends with at least two gripping jaws having conical outer jacket surfaces. With the gripping jaws the gripping element can be attached to the center pin or the cylindrical section. The basic body can be pulled axially into the guide tube, as a result of which the gripping jaws are pressed by conical jacket surfaces radially inwardly in cooperation with the guide tube, so that a snug hold of the gripping jaws at the cylindrical pin or the cylindrical section is brought about. Provisions are made according to the present invention that to make handling as simple as possible, the extractor has an extractor with a support tube, which can be pushed over the guide tube and is axially adjustable in relation to the guide tube via a mechanical adjusting drive, and that the support tube is supported axially indirectly or directly in the area surrounding the straight pin during the axial adjustment.
REFERENCES:
patent: 2874933 (1959-02-01), Feucht
patent: 2889618 (1959-06-01), Morris et al.
patent: 4059883 (1977-11-01), Osborne
patent: 5727298 (1998-03-01), Strong
patent: 198 03 732 (1999-08-01), None
patent: 2001277148 (2001-10-01), None
Klann Tools Ltd.
McGlew and Tuttle , P.C.
Watson Robert C.
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