Patent US4306398A successfully refreshed from Google Patents.
US4306398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airtight and deformable sealing gasket for greenhouse vent closures
Assignee: Individual
•
Filing: 1980-05-01
•
Granted: 1981-12-22
•
Expires: 2000-05-01
Abstract
Abstract A greenhouse has a deformable sealing gasket secured at the edge of a fixed roof thereof to engage an edge of a vent closure for sealing an air gap between the edges, when the vent closure is in its closed position.
Inventors
- 👤 John W. Duckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:25
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/24; A01G9/241; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
In a greenhouse having a stationary roof defining an elongated edge and a vent closure defining an elongated edge and movably mounted between an open position and a closed position wherein the edges of said roof and said vent closure define an elongated air gap therebetween, the improvement comprising an elongated gasket means secured to the edge of said roof for deforming into airtight sealing contact solely with the edge of said vent closure to close said air gap when said vent closure is in its closed position and the edge of said vent closure is moved downwardly into compressed sealing engagement with said gasket means, said gasket means including a pair of laterally disposed flaps extending outwardly and longitudinally along opposite sides of said gasket means and adapted for securance to a frame of said greenhouse.
Claim 2
Dependent Claim
137 words
In a greenhouse having a stationary roof defining an elongated edge and a vent closure defining an elongated edge and movably mounted between an open position and a closed position wherein the edges of said roof and said vent closure define an elongated air gap therebetween, the improvement comprising an elongated gasket means secured to the edge of said roof for deforming into airtight sealing contact solely with the edge of said vent closure to close said air gap when said vent closure is in its closed position and the edge of said vent closure is moved downwardly into compressed sealing engagement with said gasket means, said gasket means including a pair of laterally disposed flaps extending outwardly and longitudinally along opposite sides of said gasket means and adapted for securance to a frame of said greenhouse.
Claim 3
Dependent Claim
21 words
The greenhouse of claim 1 wherein said gasket means includes a foam filler encapsulated and sealed within a flexible outer casing.
Claim 4
Dependent Claim
18 words
The greenhouse of claim 1 wherein said gasket means is adhesively secured to the edge of said roof.
Claim 5
Dependent Claim
38 words
The greenhouse of claim 1 wherein the edge of said vent closure is formed on an edge of an angle compressed downwardly into sealing engagement with said gasket means when said vent closure is in its closed position.
Claim 6
Dependent Claim
21 words
The greenhouse of claim 4 wherein said gasket means is secured within another angle, secured on the edge of said roof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |