Membrane-covered reservoir having a hatchway therein

Details Membrane-covered reservoir having a hatchway therein Membrane-covered reservoir having a hatchway therein

2005-04-06

2008-10-07

A, Phi Dieu Tran (Department: 3633)

Static structures (e.g., buildings)

Specified terranean relationship

Open top, embedded container, tank, or reservoir

C052S003000, C052S063000, C405S129450, C405S129500, C220S521000

Reexamination Certificate

active

07430834

ABSTRACT:
The membrane cover has fold lines therein intersecting the walls of the reservoir at intersection points. A geometric chord or secant joins two intersection points, and defines, with a portion of the walls of the reservoir, a static segment in the membrane cover. The membrane cover in the static segment is tensioned along lines of force that are parallel to or that make acute angles, with the aforesaid chord or secant. The membrane cover in the static segment remains substantially planar and stationary, thus static, despite the rising and lowering of the remaining portion of the cover in response to variations in the level of the content of the reservoir. A hatchway is mounted in the static segment of the cover. In another aspect of the invention, the hatchway has an airtight compartment extending between the membrane cover and a point below the level of the material inside the reservoir.

REFERENCES:
patent: 1455582 (1923-05-01), Ford
patent: 2625314 (1953-01-01), Moyer
patent: 3103083 (1963-09-01), Seeger
patent: 3313443 (1967-04-01), Dial et al.
patent: 3683427 (1972-08-01), Burkholz et al.
patent: 3815367 (1974-06-01), Collins et al.
patent: 3980199 (1976-09-01), Kays
patent: 3991900 (1976-11-01), Burke et al.
patent: 4136408 (1979-01-01), Dahlbeck et al.
patent: 4139117 (1979-02-01), Dial
patent: RE30146 (1979-11-01), Dial et al.
patent: 4208469 (1980-06-01), Dial
patent: 4230580 (1980-10-01), Dodson
patent: 4438863 (1984-03-01), Wilson et al.
patent: 4446983 (1984-05-01), Gerber
patent: 4476992 (1984-10-01), Gerber
patent: 4503988 (1985-03-01), Gerber
patent: 4603790 (1986-08-01), Gerber
patent: 4606083 (1986-08-01), Kingston
patent: 4672691 (1987-06-01), De Garie et al.
patent: 4966492 (1990-10-01), Poyda
patent: 5078543 (1992-01-01), Terrel
patent: 5080786 (1992-01-01), DeLima
patent: 5212090 (1993-05-01), Landine et al.
patent: 5505848 (1996-04-01), Landine et al.
patent: 5562759 (1996-10-01), Morgan et al.
patent: 5570974 (1996-11-01), Jax et al.
patent: 5587080 (1996-12-01), Landine et al.
patent: 5890840 (1999-04-01), Carter, Jr.
patent: 6324792 (2001-12-01), DeGarie
patent: 6338169 (2002-01-01), DeGarie
patent: 6357964 (2002-03-01), DeGarie
patent: 6361249 (2002-03-01), Hodgkinson et al.
patent: 6389757 (2002-05-01), DeGarie
patent: 6451206 (2002-09-01), Charbonneau
patent: 6497533 (2002-12-01), DeGarie
patent: 6524029 (2003-02-01), Nobert et al.
patent: 6558548 (2003-05-01), Svirklys et al.
patent: 6612079 (2003-09-01), DeGarie et al.
patent: 2003/0066789 (2003-04-01), Morgan et al.
patent: 2004/0016755 (2004-01-01), Gilbert et al.
patent: 2154374 (1997-01-01), None
patent: 2072649 (1981-10-01), None
patent: WO 2004/011348 (2004-02-01), None

Affiliated with

Also associated with

Rating

Membrane-covered reservoir having a hatchway therein does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Membrane-covered reservoir having a hatchway therein, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane-covered reservoir having a hatchway therein will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3987885