Closure means for circular openings of large diameter

Details Closure means for circular openings of large diameter Closure means for circular openings of large diameter

1974-11-20

1976-11-09

Gilliam, Paul R.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220319, 220334, 292251, 2922566, 29225671, 29225673, 292301, 292DIG65, A47J 2708, A47J 27092, B65D 4502

Patent

active

039906051

ABSTRACT:
A closure for a large diameter circular opening such as the end of a tubular conduit subjected to internal positive pressure comprises a coaxial cover lid that may be opened only when a pressure relieving venting valve is opened, the cover lid being connected over the opening by screw threaded means of larger diameter than the inside diameter of the opening, and the venting valve having a removable closure cap which impedes removal of the lid until the internal pressure is vented.

REFERENCES:
patent: 1398832 (1921-11-01), Bonham
patent: 2435913 (1948-02-01), Wall
patent: 2706999 (1955-04-01), Pickard
patent: 2938648 (1960-05-01), Phelan et al.
patent: 3070254 (1962-12-01), Carse et al.
patent: 3107810 (1963-10-01), King
patent: 3225929 (1965-12-01), Sicard
patent: 3235124 (1966-02-01), Kuever
patent: 3458083 (1969-07-01), Erwin
patent: 3484317 (1969-12-01), Dickerson
patent: 3582535 (1971-06-01), Appleton

Affiliated with

Also associated with

Rating

Closure means for circular openings of large diameter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Closure means for circular openings of large diameter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closure means for circular openings of large diameter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1720891