US4566236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Greenhouse structure element
Assignee: Individual
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Filing: 1984-02-09
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Granted: 1986-01-28
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Expires: 2004-02-09
Abstract
Abstract A device for holding flexible sheet material to a structure including a fixed element that is attachable to the structure and has at one end an elongated cavity and at the other end an intrinsic lock mechanism and a locking device having at one end an arm for holding sheet material against the interior portion of the cavity and for bearing against the open edge of the cavity, the locking element also having the second half of an intrinsic lock device that is adapted to snap into the intrinsic lock device half on the fixed element.
Inventors
- 👤 John A. Pound
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:08
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; F16B5/0692; A; A01; A01G; A01G9/00; A01G9/14; A01G9/1407; A01G9/1415; E; E04; E04H; E04H15/00; E04H15/32; E04H15/64; E04H15/642; E04H15/646; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44034; Y10T24/44043
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
144 words
An assembly to hold the edge of a flexible sheet to a structure comprising: a fixed piece including means to be fixed to said structure, said fixed piece having a cavity opening between an edge and a bearing edge, a first intrinsic lock element spaced from said cavity opening, a locking piece including a sheet engaging element extending from one end thereof, said sheet engaging element including a cavity bearing portion and a cavity edge bearing portion, and a second intrinsic lock element spaced from said sheet engaging element to engage said first lock element in locking relationship when said sheet engaging element is engaged with the interior of said cavity, one of said first intrinsic lock element and second intrinsic lock element having a detent and the other of said lock elements having a nose spaced and dimensioned to snap into said detent.
Claim 2
Dependent Claim
144 words
An assembly to hold the edge of a flexible sheet to a structure comprising: a fixed piece including means to be fixed to said structure, said fixed piece having a cavity opening between an edge and a bearing edge, a first intrinsic lock element spaced from said cavity opening, a locking piece including a sheet engaging element extending from one end thereof, said sheet engaging element including a cavity bearing portion and a cavity edge bearing portion, and a second intrinsic lock element spaced from said sheet engaging element to engage said first lock element in locking relationship when said sheet engaging element is engaged with the interior of said cavity, one of said first intrinsic lock element and second intrinsic lock element having a detent and the other of said lock elements having a nose spaced and dimensioned to snap into said detent.
Claim 3
Dependent Claim
16 words
The device of claim 1 wherein one of said lock elements includes a stiffening rear extension.
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) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |