Expansible sealing plug for pipelines and the like

Details Expansible sealing plug for pipelines and the like Expansible sealing plug for pipelines and the like

1985-12-12

1989-03-21

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Fitting

Patent

active

D03003507

REFERENCES:
patent: D209379 (1967-11-01), Quick
patent: D257057 (1980-09-01), Logsdon
patent: 437289 (1890-09-01), Clark
patent: 2154498 (1939-04-01), Eagar
patent: 2720893 (1955-10-01), Foreman
patent: 3291156 (1966-12-01), Corsano
patent: 3613936 (1971-10-01), Kaiser
patent: 4250926 (1981-02-01), Satterwaite et al.
patent: 4493344 (1985-01-01), Mathison
patent: 4585033 (1986-04-01), Westman
Bailey Brother, Limited, Birmingham England; Drain Test Plugs product brochure, pp. 2 and 3.
Maloney Pipeline Products Co., Houston, Texas; Maloney/Foreman Night Caps product brochure, p. 1.
Mechanical Research and Design, Inc., Chesapeake, Virginia; "Sealfast" Test Plugs product brochure, pp. 1 and 2.
Sidu Manufacturing Company, Inc., Los Alamitos, California; Side Mechanical Sewer Plugs product brochure, p. 2.
Vanderlans and Sons, Inc., Lodi, California; "Lansas Sewer Plugs" product brochure, p. 1.

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