Patent US3854623A successfully refreshed from Google Patents.
US3854623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid storage tank emission collection hood
Assignee: Betts Machine Co
•
Filing: 1972-11-01
•
Granted: 1974-12-17
•
Expires: 1992-11-01
Abstract
Abstract An emission collection device for a fluid storage tank vent including a hood configured to completely enclose the tank vent to collect gaseous vapors emitting from the vent. The hood has at least one outlet for directing the collected vapors to a vapor collecting tank. The hood is formed of a resilient flexible material whereby if the tank is inadvertently overturned, the hood will collapse without affecting the tank shell and return to its original shape when the tank is uprighted.
Inventors
- 👤 K Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:24
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/32; B65D90/34; B60; B60P; B60P3/00; B60P3/22; B60P3/224; B60P3/2255; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
An emission collection device for a fluid storage tank vent comprising, a fluid storage tank vent hood configured to completely enclose the tank vent to collect gaseous vapors emitting from the vent, said hood having at least one outlet for directing the collected vapors therein to an associated vapor collecting tank, said hood being formed of a flexible resilient material whereby if the tank is inadvertently overturned the hood will collapse and automatically return to its original shape when the tank is uprighted.
Claim 2
Dependent Claim
83 words
An emission collection device for a fluid storage tank vent comprising, a fluid storage tank vent hood configured to completely enclose the tank vent to collect gaseous vapors emitting from the vent, said hood having at least one outlet for directing the collected vapors therein to an associated vapor collecting tank, said hood being formed of a flexible resilient material whereby if the tank is inadvertently overturned the hood will collapse and automatically return to its original shape when the tank is uprighted.
Claim 3
Dependent Claim
13 words
The structure of claim 1 wherein said material is a synthetic organic plastic.
Claim 4
Dependent Claim
13 words
The structure of claim 2 wherein said synthetic organic plastic is a polyurethane.
Claim 5
Dependent Claim
12 words
The structure of claim 2 wherein said synthetic organic plastic is buna-N.
Claim 6
Dependent Claim
12 words
The structure of claim 2 wherein said synthetic organic plastic is viton.
Claim 7
Dependent Claim
64 words
The structure of claim 1 wherein the hood is secured to an associated outer peripheral annular vent flange on the vent, said hood having a matching peripheral annular hood flange coacting with the vent flange for attaching the hood to the vent, and an adjustable releasable peripheral annular clamping ring encasing and clamping the two flanges together to retain the hood on the vent.
Claim 8
Dependent Claim
25 words
The structure of claim 6 wherein said hood flangE has an annular peripheral metal reinforcing band formed in such hood flange to reinforce the same.
Claim 9
Dependent Claim
24 words
The structure of claim 7 wherein said metal band has gasket material on its underside thereby enabling such band to function as a gasket.
References Cited (Backward Citations)
US1291693A
Cited
US1894867A
Cited
US1959191A
Cited
US2126367A
Cited
US2302234A
Cited
US2465095A
Cited
US3233411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |