Retaining device

Details Retaining device Retaining device

1999-06-03

2001-10-23

King, Anita (Department: 3632)

Supports

Pipe or cable

C248S313000

Reexamination Certificate

active

06305649

ABSTRACT:

THIS INVENTION concerns a retaining device to prevent linear movement of an elongate member in one direction, and is particularly though not exclusively concerned with a device to hold a length of vertical drilling tube permanently or temporarily at a pre-determined level.
According to the present invention a retaining device to prevent linear movement of an elongate member in one direction comprises at least one retaining member adapted in combination to engage an outer wall surface of the elongate member, each retaining member having at least one gripping member movable with respect to the retaining member into engagement with the elongate member; characterised in that the gripping member is constructed so as to engage the elongate member with a rolling action.


REFERENCES:
patent: 2676036 (1954-04-01), Arrowood
patent: 2683046 (1954-07-01), Allen
patent: 2887754 (1959-05-01), Johnson
patent: 3130987 (1964-04-01), Johnson
patent: 3472535 (1969-10-01), Kinley
patent: 3579753 (1971-05-01), Pryor
patent: 3986583 (1976-10-01), Kinzbach
patent: 4715625 (1987-12-01), Shows, Jr. et al.
patent: 5484222 (1996-01-01), Schulze-Beckinghausen
patent: 5609226 (1997-03-01), Penisson
patent: 5732909 (1998-03-01), Soonier
patent: 5992801 (1999-11-01), Torres

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