Collapsible and adjustable gage apparatus

Details Collapsible and adjustable gage apparatus Collapsible and adjustable gage apparatus

1978-07-20

1980-07-22

Little, Willis

Geometrical instruments

Area integrators

Electrical

G01B 302, E21B 1710

Patent

active

042132460

ABSTRACT:
A collapsible and adjustable gage apparatus comprising a plurality of wear link members adapted to engage the inner walls of pipe, which members are pivotally attached through articulated mechanical arms to a rotatably adjustable collar and to a slidable, releasable collar. The gage apparatus may be adapted to different diameters of pipe by varying the distance between the adjustable collar and the releasable collar. The gage apparatus may be collapsed for easier withdrawal from a pipe by actuating the catch mechanism which holds the releasable collar in a fixed position, permitting the releasable collar to slide away from the adjustable collar, thereby collapsing the wear link members and articulated arms so as to reduce the effective diameter of the apparatus to its smallest possible size.

REFERENCES:
patent: 1591394 (1926-07-01), McGrath
patent: 2267110 (1941-12-01), Kinley et al.
patent: 2499251 (1950-02-01), Marascio
patent: 2829441 (1958-04-01), Bagnell
patent: 3081548 (1963-03-01), Schwartz
patent: 3349498 (1967-10-01), Oliver et al.
patent: 3533166 (1970-10-01), Pino, Jr.
patent: 3977468 (1976-08-01), Brewer et al.

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