Patent US3795381A successfully refreshed from Google Patents.
US3795381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner clamp
Assignee: Individual
•
Filing: 1972-05-15
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Granted: 1974-03-05
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Expires: 1992-05-15
Abstract
Abstract A corner clamp or tie for joining together the free ends of a pair of walers at the corner of a form which comprises a first plate means for attachment to one of the walers. A rotatable bar is pivotally connected at one end thereof to the first plate. A second plate means is adapted to be affixed to the other adjoining waler. The second plate means has a portion thereof extending generally normal to the form member, the perpendicular member having a notch therein which is coalignable and receives the end of said bar opposite from the pivot end connected to the first plate member, and a wedge insertable in an aperture in the end of said rotatable bar adjoining said second plate member.
Inventors
- 👤 H Argust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:41
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/001
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
A corner clamp for joining together the free ends of a pair of walers at the corner of a form comprising: a first plate having means for attachment to one of the walers, an arm rotatably connected at one end thereof to said first plate, and having at least one opening therethrough adjacent the other end, and a second plate having means for attachment to the other of the pair of walers, said second plate having a portion thereof with a slot formed therein to receive the end portion of said arm having the opening therethrough, the slotted portion of the second plate extending generally perpendicular to the attachment means thereof.
Claim 2
Dependent Claim
111 words
A corner clamp for joining together the free ends of a pair of walers at the corner of a form comprising: a first plate having means for attachment to one of the walers, an arm rotatably connected at one end thereof to said first plate, and having at least one opening therethrough adjacent the other end, and a second plate having means for attachment to the other of the pair of walers, said second plate having a portion thereof with a slot formed therein to receive the end portion of said arm having the opening therethrough, the slotted portion of the second plate extending generally perpendicular to the attachment means thereof.
Claim 3
Dependent Claim
22 words
The clamp of claim 1 wherein said arm is a generally flat member lying in a plane normal to the plate members.
Claim 4
Dependent Claim
18 words
The clamp of claim 2 further comprising: a wedge member capable of engaging the opening through said arm.
Claim 5
Dependent Claim
35 words
The clamp of claim 1 wherein the means for attachment of said plates to the waler comprises: a plurality of small apertures thereto through said plate whereby the plate can be nailed to the walers.
Claim 6
Dependent Claim
27 words
The clamp of claim 4 further comprising: at least two enlarged openings provided through each plate for additionally securing the plate by lag bolts to said walers.
Claim 7
Dependent Claim
54 words
The clamp of claim 1 further comprising: an associated backing plate for disposition on the opposite surface of a waler from said first and second plates when said clamp is to be mounted on a pair of spaced-apart parallel walers, and bolt means for securing said backing plates to said first and second plates.
Claim 8
Dependent Claim
31 words
The clamp of claim 6 wherein: each backing plate has an additional portion thereon extending therefrom for resting on and capable of being affixed to an upper surface of a waler.
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |