US4381629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Greenhouse
Assignee: Individual
•
Filing: 1980-11-28
•
Granted: 1983-05-03
•
Expires: 2000-11-28
Abstract
Abstract A greenhouse comprising walls defining an area. A roof covers a portion of the area. Track means are interposed between the roof and the walls so that the roof may be moved along the track to cover a selected part of the area.
Inventors
- 👤 Min H. Ahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:18
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/14; A01G9/16; E; E04; E04B; E04B1/00; E04B1/343; E04B1/3455; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25; Y10; Y10S; Y10S52/00; Y10S52/17
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
146 words
A greenhouse comprising a plurality of tubular frames each frame comprising a plurality of tubular members joined to each other by joining members to form walls defining a first area and to form a roof covering a portion of said first area; spaced apart layers of plastic sheet extending over the frames to act as a means of preserving heat within the greenhouse; track means interposed between the roof and the walls whereby the roof may be moved along the track to cover a preselected part of the first area; channel members running along the top and bottom of the walls, said channel members facing outwardly; a filler to fit loosely into each channels and to receive the ends of the plastic sheets, wrapped around each filler; locking means to maintain each filler, with the plastic sheets wrapped around it, in place within the channel member.
Claim 2
Dependent Claim
146 words
A greenhouse comprising a plurality of tubular frames each frame comprising a plurality of tubular members joined to each other by joining members to form walls defining a first area and to form a roof covering a portion of said first area; spaced apart layers of plastic sheet extending over the frames to act as a means of preserving heat within the greenhouse; track means interposed between the roof and the walls whereby the roof may be moved along the track to cover a preselected part of the first area; channel members running along the top and bottom of the walls, said channel members facing outwardly; a filler to fit loosely into each channels and to receive the ends of the plastic sheets, wrapped around each filler; locking means to maintain each filler, with the plastic sheets wrapped around it, in place within the channel member.
Claim 3
Dependent Claim
38 words
A greenhouse as claimed in claim 1 in which wheels are mounted on the roof and a track is positioned on the top of opposed side walls whereby the roof may be moved longitudinally of the first area.
Claim 4
Dependent Claim
33 words
A greenhouse as claimed in claim 1 in which wheels are mounted on the roof and a track is on opposed end walls whereby the roof may move laterally across the first area.
Claim 5
Dependent Claim
18 words
A greenhouse as claimed in claim 1 including tensioning members positioned adjacent the one end of the roof.
Claim 6
Dependent Claim
20 words
A greenhouse as claimed in claim 1 including a pulley system to permit movement of the roof on the tracks.
Claim 7
Dependent Claim
28 words
A greenhouse as claimed in claim 1 including a weather proofing member extending downwardly from a lower edge of the roof to protect the wheel and track means.
References Cited (Backward Citations)
GB189322310A
Cited
US2019831A
Cited
US2603171A
Cited
FR1432172A
Cited
DE1684162A1
Cited
US3811454A
Cited
FR2293546A1
Cited
US4092992A
Cited
GB1550488A
Cited
US4307554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-02 | 1986-11-01 | 1987-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-02 | 1990-11-01 | 1991-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-02 | 1994-11-01 | 1995-05-03 | $7700.00 | Window Closed / Lapsed |