US3601912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven screen stretching frame
Assignee: Individual
•
Filing: 1968-10-25
•
Granted: 1971-08-31
•
Expires: 1988-10-25
Abstract
Abstract A frame for supporting and stretching a rectangular printing screen of woven material comprised of pairs of opposite frame members connected by and journaled within corner members at their ends. The frame members have means for gripping the screen material along each edge and are rotatable within the corner members to apply tension to the screen in either dimension to create the desired amount of stretch in it.
Inventors
- 👤 Wendell P Dubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:58
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/14; B41F15/34; B41F15/36
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A frame for supporting a printing screen comprising: a pair of end frame members and a pair of side frame members; means in each said frame member for retaining an edge portion of said printing screen; corner connector means rotatably supporting each of said frame members at their ends to form a closed rectangle; and means for shifting said corner connector means along the axis of rotation of each of the adjacent frame members and for locking said frame members against rotation after they have been rotated to a predetermined position.
Claim 2
Dependent Claim
91 words
A frame for supporting a printing screen comprising: a pair of end frame members and a pair of side frame members; means in each said frame member for retaining an edge portion of said printing screen; corner connector means rotatably supporting each of said frame members at their ends to form a closed rectangle; and means for shifting said corner connector means along the axis of rotation of each of the adjacent frame members and for locking said frame members against rotation after they have been rotated to a predetermined position.
Claim 3
Dependent Claim
43 words
The frame as described in claim 1 wherein each said frame member is generally tubular and the means rotatably supporting each said frame member comprises a plug fixed within each end of each said frame member and journaled in said corner connector means.
Claim 4
Dependent Claim
30 words
The frame as described in claim 2 wherein said locking means comprises a machine screw extending through a portion of said corner connector means and axially into a said plug.
Claim 5
Dependent Claim
30 words
The frame as described in claim 2 wherein each said plug is made from a solid plastic material and has an integral end portion journaled in a said corner connector.
Claim 6
Dependent Claim
31 words
The frame as described in claim 1 wherein each said corner connector is a structural member comprised of a pair of side members integrally connected at right angles to each other.
Claim 7
Dependent Claim
70 words
The frame as described in claim 1 wherein said means in each said frame member for retaining an edge portion of said screen comprises an axially extending slot, means forming an overhanging lip along one axial side of said slot, and a flexible retainer strip in said slot for binding the screen material against said overhanging lip when tension is applied to the screen as the frame member is rotated.
Claim 8
Dependent Claim
45 words
The frame as described in claim 1 including a series of axially aligned indicating marks circumferentially spaced apart at one end of each said frame member, and an index mark on a said corner connector adjacent to said indicating marks on a connected frame member.
Claim 9
Dependent Claim
30 words
A frame as described in claim 1 further including a series of radially extending holes circumferentially spaced apart at one end of each frame for reception of a turning tool.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |