US4572491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for joining wooden or metallic structural parts
Assignee: Individual
•
Filing: 1984-03-09
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Granted: 1986-02-25
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Expires: 2004-03-09
Abstract
Abstract A clamping device comprises an angle member carrying a clamping mechanism and a clamping band which is engaged by the clamping mechanism at one end and engages around and holds the workpieces to be joined firmly in contact with each other, and is attached, by its other end, to an anchor. The anchor may be provided on the angle member or on a tensioning angle member. To tension the band, the clamping mechanism is mounted on a slide 3 which is displaceable by a pulling means operating thereon and which comprises a screw and a nut.
Inventors
- 👤 Hans Forrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:51
CPC Classifications
B; B25; B25B; B25B1/00; B25B1/20; B25B1/205
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
264 words
A clamping device and workpiece combination comprising: a pair of workpieces engaged to each other at a joint and each having a pair of outer corners spaced away form said joint and defining an outer edge spaced away from said joint, said engaged workpieces together having a top surface and a bottom surface; a tensioning angle engaged over one outer corner of one workpiece, said tensioning angle having a first leg engaged against the outer edge of said one workpiece and a second leg engaged against said top surface of said engaged workpieces; a holding angle engaged over the other outer corner of said one workpiece, said holding angle having a first leg engaged against said outer edge of said one workpiece and a second leg engaged against said bottom surface of said engaged workpieces, said holding angle having at least one slot therethrough; a band having a first end portion extending through said slot of said holding angle with an anchoring block connected to said first end portion of said band, said block engaged against said holding angle with tensioning of said band, said band extending over said bottom surface, around said outer corners of the other workpiece, over said top surface and to a second end portion of said band; band clamping means movably mounted to said tensioning angle for clamping said second end portion of said band to said tightening angle; and band tensioning means connected to said tensioning angle and engaged with said band clamping means for moving said band clamping means on said tensioning angle to tension said band.
Claim 2
Dependent Claim
264 words
A clamping device and workpiece combination comprising: a pair of workpieces engaged to each other at a joint and each having a pair of outer corners spaced away form said joint and defining an outer edge spaced away from said joint, said engaged workpieces together having a top surface and a bottom surface; a tensioning angle engaged over one outer corner of one workpiece, said tensioning angle having a first leg engaged against the outer edge of said one workpiece and a second leg engaged against said top surface of said engaged workpieces; a holding angle engaged over the other outer corner of said one workpiece, said holding angle having a first leg engaged against said outer edge of said one workpiece and a second leg engaged against said bottom surface of said engaged workpieces, said holding angle having at least one slot therethrough; a band having a first end portion extending through said slot of said holding angle with an anchoring block connected to said first end portion of said band, said block engaged against said holding angle with tensioning of said band, said band extending over said bottom surface, around said outer corners of the other workpiece, over said top surface and to a second end portion of said band; band clamping means movably mounted to said tensioning angle for clamping said second end portion of said band to said tightening angle; and band tensioning means connected to said tensioning angle and engaged with said band clamping means for moving said band clamping means on said tensioning angle to tension said band.
Claim 3
Dependent Claim
63 words
A combination according to claim 1, wherein said tensioning angle is positioned laterally of said holding angle on said outer edge of said one workpiece in a direction substantially parallel to a direction of said joint whereby said first legs of said tensioning and holding angles extend adjacent each other and parallel to each other over said outer edge of said one workpiece.
Claim 4
Dependent Claim
83 words
A combination according to claim 2, wherein said band clamping means comprises a slide engaged against said second leg of said tensioning angle and connected to said band tensioning means for movement on said second leg of said tensioning angle and an eccentric bolt rotatably mounted at a location spaced from said slide and movable on said second leg of said tensioning angle with said slide, said second end portion of said band band being clamped between said slide and said eccentric bolt.
Claim 5
Dependent Claim
55 words
A combination according to claim 3, wherein said band tensioning means comprises a threaded rod extending through said first leg of said tensioning angle and being connected to said slide, and a nut threaded to said threaded rod for rotation to move said threaded rod with respect to said first leg for tensioning said band.
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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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |