Inflatable manhole sealing device

Details Inflatable manhole sealing device Inflatable manhole sealing device

1993-06-23

1994-08-02

Cusick, Ernest G.

Fluent material handling, with receiver or receiver coacting mea

Processes

Battery grid pasting

141287, 141387, 141383, 220324, B65B 128

Patent

active

053336534

ABSTRACT:
A manhole sealing device enables the recovery of vapors displaced from a tank during the process of filling a tank with fuel, through the manhole. The sealing device comprises a sealing gasket, which has an inflation chamber defined by two tubular walls. When the chamber is inflated, the gasket is distended to toroidal configuration capable of sealing engaging manhole inner diameters of a wide dimensional range. The sealing gasket is mounted on a lock-down bar what is clamped against the upper end of the manhole, using bolts that are also used in clamping the hatch cover for the manhole. Preferable the gasket is first inflated to centralize it relative to the manhole and then clamped in fixed relation relative thereto.

REFERENCES:
patent: 2832378 (1958-04-01), Beavon
patent: 3176730 (1965-04-01), Knight
patent: 3190322 (1965-06-01), Brown
patent: 3666134 (1972-05-01), Rauch
patent: 3926231 (1975-12-01), Madden et al.
patent: 4157146 (1979-06-01), Svenson
patent: 4180272 (1979-12-01), Heitz
patent: 4469152 (1984-09-01), Hardee et al.
patent: 5184654 (1993-02-01), Benzing

Affiliated with

Also associated with

Rating

Inflatable manhole sealing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inflatable manhole sealing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inflatable manhole sealing device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60012