Patent US3638904A successfully refreshed from Google Patents.
US3638904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cone element for concrete forms
Assignee: Form-Eze Systems
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Filing: 1969-04-14
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Granted: 1972-02-01
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Expires: 1989-04-14
Abstract
Abstract A cone-type device for use with form ties in concrete-forming systems to prevent escape of concrete and to facilitate form tie placing and form spacing operations. A cone device of size slightly smaller than the size of tie openings in the form elements is disposed on a form tie and is provided with a tapered end to facilitate introduction of said cones through the openings in the forms whereby the ties may be emplaced from a work station outside the form structure. The cone device is further used cooperatively with a form tie and a form lock as a spacer component to maintain accurate spacing of the form walls before concrete is poured notwithstanding its freedom from engagement with the form walls.
Inventors
- 👤 James W Franklin
- 👤 David R Wells
- 👤 Elmer H Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:48
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A form tie and cone-flange element combination for use in concrete-forming operations to hold concrete supporting form elements in desired position and for preventing escape of poured concrete through form tie openings in said form elements comprising a form tie having an elongated shank for disposition between said form elements and through said form tie openings, engaging elements on said form tie of size larger than the shank of said tie and smaller than the tie openings in said form elements, a cone-flange extending longitudinally along said form tie having an elongated body providing a longitudinal bore therethrough for engagement about said form tie, said cone-flange having a first element that tapers from a small size to a larger diameter that substantially fills said form tie opening and a second element that tapers from said larger diameter to a smaller size whereby said tapered elements facilitate self-finding insertion of said cone-flange and form tie through said form tie openings when introduced through paired form openings from a work station outside either form element to position the engaging elements of said form tie in operative position outwardly of said form elements.
Claim 2
Dependent Claim
190 words
A form tie and cone-flange element combination for use in concrete-forming operations to hold concrete supporting form elements in desired position and for preventing escape of poured concrete through form tie openings in said form elements comprising a form tie having an elongated shank for disposition between said form elements and through said form tie openings, engaging elements on said form tie of size larger than the shank of said tie and smaller than the tie openings in said form elements, a cone-flange extending longitudinally along said form tie having an elongated body providing a longitudinal bore therethrough for engagement about said form tie, said cone-flange having a first element that tapers from a small size to a larger diameter that substantially fills said form tie opening and a second element that tapers from said larger diameter to a smaller size whereby said tapered elements facilitate self-finding insertion of said cone-flange and form tie through said form tie openings when introduced through paired form openings from a work station outside either form element to position the engaging elements of said form tie in operative position outwardly of said form elements.
Claim 3
Dependent Claim
18 words
Structure as set forth in claim 1 wherein a tapered end of said cone-flange is of conical shape.
Claim 4
Dependent Claim
40 words
Structure as set forth in claim 2 wherein said conicaL shape tapers from a small end of size corresponding to the external size of said form tie to the larger size corresponding to the size of the form tie opening.
Claim 5
Dependent Claim
21 words
Structure as set forth in claim 3 wherein the defined conical shape and taper is disposed on said insertion tip end.
Claim 6
Dependent Claim
54 words
Structure as set forth in claim 1 wherein said cone-flange is formed of a resilient material and the longitudinal bore through said cone-flange body is of a size to closely engage the form ties whereby movement of said cone-flange along the tie is resisted by such close engagement and the resilience of said body.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |