Patent US4233765A successfully refreshed from Google Patents.
US4233765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame for securing flexible sheets of material
Assignee: STEIN RICHARD H ESQ CONSERVATOR FOR NORMAN O'MULLAN AND GRACE O'MULLAN
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Filing: 1978-11-22
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Granted: 1980-11-18
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Expires: 1998-11-22
Abstract
Abstract A peripheral frame member holds flexible sheets of material tightly over a central open area. A channel around the back of the frame is adapted to receive a flexible strip member having a longitudinally extending bifurcated projection engageable within the length of the channel. When a thin sheet of flexible material is placed over the back of the frame and the strip member pressed down so that the projection fits tightly within the channel, the material is locked in place and stretched taut across the central open area. The frame is preferably rectangular with channels along each side and a plurality of longitudinal strips engage respective sides. The device provides a simplified structure which is particularly useful for holding and displaying fabrics for embroidery and needlecraft projects.
Inventors
- 👤 Norman P. O'Mullan
- 👤 Paul R. T. Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:41
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/06; A47G1/0605; G; G09; G09F; G09F1/00; G09F1/10; G09F1/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
216 words
A frame for securing thin flexible sheets of material comprising: a support member having a channel in one face, said channel being adapted to receive a thin flexible sheet of material, and a longitudinal flexible locking member having a thin flat base and a pair of thin angled legs extending outwardly along a central area of said base, the widest dimension across the open ends of said legs being normally engageable with the opening of said channel in a sliding fit, said legs being compressible to reduce said dimension and engage said channel in a press fit when said thin fexible sheet of material is disposed intermediate said support member channel and said locking member to secure said sheet within said channel said support member and channel extend about the periphery of a central open area, said locking member being a flexible strip including said legs extending along said strip and flat surfaces along said base adjacent said legs said flat surfaces being engageable with said support member adjacent said channel, said support member includes a front face and a back face, said channel extending around and into the back face, and a plurality of flexible strips engageable with said channel in said support member to hold said sheet of material tightly across said open area.
Claim 2
Dependent Claim
216 words
A frame for securing thin flexible sheets of material comprising: a support member having a channel in one face, said channel being adapted to receive a thin flexible sheet of material, and a longitudinal flexible locking member having a thin flat base and a pair of thin angled legs extending outwardly along a central area of said base, the widest dimension across the open ends of said legs being normally engageable with the opening of said channel in a sliding fit, said legs being compressible to reduce said dimension and engage said channel in a press fit when said thin fexible sheet of material is disposed intermediate said support member channel and said locking member to secure said sheet within said channel said support member and channel extend about the periphery of a central open area, said locking member being a flexible strip including said legs extending along said strip and flat surfaces along said base adjacent said legs said flat surfaces being engageable with said support member adjacent said channel, said support member includes a front face and a back face, said channel extending around and into the back face, and a plurality of flexible strips engageable with said channel in said support member to hold said sheet of material tightly across said open area.
Claim 3
Dependent Claim
23 words
The frame device of claim 1 wherein said widest dimension of said legs is substantially equal to the width of the channel opening.
Claim 4
Dependent Claim
28 words
The frame device of claim 1 wherein said legs are v-shaped, the open ends of said legs being compressible during engagement with said channel in said press fit.
Claim 5
Dependent Claim
17 words
The frame device of claim 3 wherein said V-shaped legs include pointed ridges on the outside walls.
Claim 6
Dependent Claim
20 words
The frame device of claim 3 wherein said support member includes an outer border extending rearwardly from said back face.
Claim 7
Dependent Claim
20 words
The frame device of claim 3 wherein said support member is of wood and said flexible strip is of plastic.
Claim 8
Dependent Claim
22 words
The frame device of claim 3 wherein said channel includes inwardly angled walls engageable with said V-shaped legs of said flexible strips.
Claim 9
Dependent Claim
15 words
The frame device of claim 7 wherein said support member is of a flexible material.
Claim 10
Dependent Claim
23 words
The frame device of claim 8 wherein said channel includes a thick inner side wall and a thinner more flexible outer side wall.
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) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |