US4938449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie for concrete forms
Assignee: Tremco CPG Inc
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Filing: 1989-02-13
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Granted: 1990-07-03
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Expires: 2009-02-13
Abstract
Abstract A tie for concrete forms includes an elongated strap with opposing first and second ends. The strap has an upwardly projecting intermediate portion which prevents the movement of form panels inwardly on the strap. A notch in each outer end of the strap receives a waler to hold the form panel from moving outwardly along the strap. Beveled ends allow the strap to be forced through a polystyrene panel without the need for forming an aperture in the panel to insertion of the tie. A removable end piece is also been designed for use with the tie. The end piece is a generally rectangular plate member with a slot in the middle and a pin projecting across the slot which will be received in the notch of the tie. In this fashion, the plate member is pressed against the form panel to prevent outward movement of the panel on the tie. The end piece may be removed as desired from the tie, thereby allowing reuse of the end piece in other locations.
Inventors
- 👤 Patrick E. Boeshart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:43
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/86; E04B2/8652; E04B2/8647; E04G; E04G17/00; E04G17/06; E04B2002/8688; E04G2017/0646
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
265 words
A tie for interlocking a pair of spaced-apart form panels, comprising: a generally flat, elongated strap having first and second opposite end portions, upper and lower edges, opposite sides and an intermediate portion between said ends; said strap means including means for retaining the panels in spaced-apart relation on opposite ends of said intermediate portion, comprising: stop means located at each end of said intermediate portion for preventing movement of the panels inwardly on said tie towards the intermediate portion; and waler receiving means on each end of said tie, spaced outwardly from said stop means, for receiving a waler to prevent outward movement of the panel; said stop means comprising said intermediate portion being formed with a height greater than the height of said end portions, to create a step at each end of said intermediate portion such that a panel will abut the step and be prevented from moving inwardly on the tie; said waler receiving means comprising each said end portion being formed with a notch extending downwardly from the upper edge thereof, each notch having an inner edge, outer edge, and bottom edge, the width of each notch between the inner and outer edges being adapted to receive the width of a predetermined waler therein, whereby a waler inserted in a said notch will prevent outward movement of a panel; said inner edge of said notches being spaced a distance from said stop means equal to the thickness of the panels, such that insertion of a waler in said notches will retain a panel between said waler and said stop means.
Claim 2
Dependent Claim
265 words
A tie for interlocking a pair of spaced-apart form panels, comprising: a generally flat, elongated strap having first and second opposite end portions, upper and lower edges, opposite sides and an intermediate portion between said ends; said strap means including means for retaining the panels in spaced-apart relation on opposite ends of said intermediate portion, comprising: stop means located at each end of said intermediate portion for preventing movement of the panels inwardly on said tie towards the intermediate portion; and waler receiving means on each end of said tie, spaced outwardly from said stop means, for receiving a waler to prevent outward movement of the panel; said stop means comprising said intermediate portion being formed with a height greater than the height of said end portions, to create a step at each end of said intermediate portion such that a panel will abut the step and be prevented from moving inwardly on the tie; said waler receiving means comprising each said end portion being formed with a notch extending downwardly from the upper edge thereof, each notch having an inner edge, outer edge, and bottom edge, the width of each notch between the inner and outer edges being adapted to receive the width of a predetermined waler therein, whereby a waler inserted in a said notch will prevent outward movement of a panel; said inner edge of said notches being spaced a distance from said stop means equal to the thickness of the panels, such that insertion of a waler in said notches will retain a panel between said waler and said stop means.
Claim 3
Dependent Claim
35 words
The tie of claim 1, wherein said first and second end portions each have a beveled edge, adapted to penetrate a polystyrene panel to allow insertion of each end of said tie through a panel.
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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) | 1993-07-02 | 1994-01-01 | 1994-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-02 | 1998-01-01 | 1998-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-02 | 2002-01-01 | 2002-07-03 | $7700.00 | Window Closed / Lapsed |