Clamping device for clamping pipes, particularly on butt...

Details Clamping device for clamping pipes, particularly on butt... Clamping device for clamping pipes, particularly on butt...

2011-06-14

2011-06-14

Nguyen, George (Department: 3723)

Work holders

Relatively movable jaws

Means to actuate jaw

C269S043000, C269S045000

Reexamination Certificate

active

07959142

ABSTRACT:
Proposed is a clamping device for clamping pipes, particularly plastic pipes for welding on butt welding machines. A base part (10) and a clamping lid (11) that is removable from the same or can be pivoted away from the same each have, to receive a pipe, a receptacle channel (13, 14) with circle segment-shaped cross section, whose circle segment radius is matched to the pipe radius. To provide for clamping also pipes with a smaller radius, at least one clamping insert is provided that is fixable in the receptacle channel (13) of the base part (10) and consists of an insert base part (23) and an insert clamping lid (25) that is removable from the same or can be pivoted away from the same, whose receptacle channels (30, 31) have a circle segment-shaped cross section with a smaller circle segment radius than that of the base part (10). Accordingly, when clamping smaller pipes the usually very heavy clamping lid (11) does not need to be provided with inserts and does not need to be pivoted.

REFERENCES:
patent: 1055757 (1913-03-01), Ling
patent: 1112192 (1914-09-01), Callan
patent: 3097843 (1963-07-01), Morrow
patent: 3414950 (1968-12-01), Phariss
patent: 3596898 (1971-08-01), Hilburn
patent: 4750662 (1988-06-01), Kagimoto
patent: 4865300 (1989-09-01), Borzym
patent: 5165160 (1992-11-01), Poncelet
patent: 5727778 (1998-03-01), Nodar
patent: 5770006 (1998-06-01), Andrew et al.

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