Safety sleeve

Details Safety sleeve Safety sleeve

1976-02-26

1977-08-23

Scott, Samuel

Wells

Receptacles

With separate air chamber having openable passage

64 4, 64 23, 166311, 175219, F16D 384

Patent

active

040431509

ABSTRACT:
A safety sleeve shields the working members of a well tool wherein two shoulders come together to eliminate the possibility of workmen loosing a finger between the two shoulders.

REFERENCES:
patent: 1541007 (1925-06-01), Thiemer
patent: 2108947 (1938-02-01), Seifer
patent: 2116290 (1938-05-01), Spicer
patent: 3078933 (1963-02-01), Orner
patent: 3446283 (1969-05-01), Baumstimler

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