Patent US919370A successfully refreshed from Google Patents.
Patent US115212A successfully refreshed from Google Patents.
Patent US4229920A successfully refreshed from Google Patents.
US4229920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed plastic concrete form and connectors therefor
Assignee: Frank R Lount & Son 1971 Ltd
•
Filing: 1978-09-25
•
Granted: 1980-10-28
•
Expires: 1998-09-25
Abstract
Abstract Panels are formed from foamed plastic or the like, with anchor members embedded in the inner faces and having connector engaging portions extending from one face of the panel. A pair of panels is held in spaced and parallel relationship by a plastic connector member which is slidably engaged within the anchor portions extending from the panels. The anchor portions are situated adjacent each end of the panels and have upper and lower extending portions spaced from the upper and lower edges of the panels. The connectors each have upper and lower anchoring engaging portions so that a four point connection is made between each pair of panels. Concrete may then be poured between the panels which act as forms and remain in place.
Inventors
- 👤 William D. Lount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:33
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04B; E04B2/00; E04B2/02; E04B2/28; E04B2/30; E04B2/32; E04C2/02; E04C2/10; E04C2/20; E04C2/205; E04B2002/0202; E04B2002/0204; E04B2002/0206; E04B2002/0228
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
241 words
A form for concrete walls and the like comprising in combination a pair of substantially rectangular foamed plastic panels, and means to maintain said panels in spaced and parallel relationship, said means including cooperating pairs of vertically situated anchor means embedded within said panels, connector engaging means extending from each of said pair of anchor means and protruding from one face of said panels, and a connector slidably engaging upon said corresponding pairs of connector engaging means in detachable locking relationship thereby holding said panels in the said spaced and parallel relationship, each said pair of anchor means including a base portion embedded within said panel with said connector engaging means extending therefrom, each said anchor means including an upper and lower connector engaging means situated substantially at right angles to the longitudinal axis of said panel in spaced apart relationship one above the other and spaced from the upper and lower edges of said panel by a similar amount and also being spaced inwardly from the ends of said panel by a similar amount whereby said panels are interchangeable and reversible end to end, said connector including a vertically situated frame and upper and lower portions on each side of said frame operatively engaging with the corresponding connector engaging means of said anchor means, a pair of jaws on each of said connector engaging means and guide means formed on said portions of said connector slidably engageable within said jaws.
Claim 2
Dependent Claim
241 words
A form for concrete walls and the like comprising in combination a pair of substantially rectangular foamed plastic panels, and means to maintain said panels in spaced and parallel relationship, said means including cooperating pairs of vertically situated anchor means embedded within said panels, connector engaging means extending from each of said pair of anchor means and protruding from one face of said panels, and a connector slidably engaging upon said corresponding pairs of connector engaging means in detachable locking relationship thereby holding said panels in the said spaced and parallel relationship, each said pair of anchor means including a base portion embedded within said panel with said connector engaging means extending therefrom, each said anchor means including an upper and lower connector engaging means situated substantially at right angles to the longitudinal axis of said panel in spaced apart relationship one above the other and spaced from the upper and lower edges of said panel by a similar amount and also being spaced inwardly from the ends of said panel by a similar amount whereby said panels are interchangeable and reversible end to end, said connector including a vertically situated frame and upper and lower portions on each side of said frame operatively engaging with the corresponding connector engaging means of said anchor means, a pair of jaws on each of said connector engaging means and guide means formed on said portions of said connector slidably engageable within said jaws.
Claim 3
Dependent Claim
24 words
The form according to claim 1 which includes means to limit the amount of sliding engagement of said connector with said connector engaging means.
Claim 4
Dependent Claim
32 words
The form according to claim 1 which includes a pair of anchor means one adjacent each end of said panels and a pair of connectors, one for each of said anchor means.
Claim 5
Dependent Claim
32 words
The form according to claim 1 which includes a pair of anchor means one adjacent each end of said panels and a pair of connectors one for each of said anchor means.
Claim 6
Dependent Claim
52 words
The form according to claims 1, 2, or 3 in which said panels include means formed along the edges thereof engageable with corresponding means on adjacent panels whereby said panels upon one side of said form all interengage together and panels on the other side of said form also all interengage together.
Claim 7
Dependent Claim
49 words
The form according to claim 4 in which said panels include means formed along the edges thereof engageable with corresponding means on adjacent panels whereby said panels upon one side of said form all interengage together and panels on the other side of said form also all interengage together.
References Cited (Backward Citations)
US1911626A
Cited
US2086571A
Cited
US2630701A
Cited
US2942454A
Cited
FR1271208A
Cited
US3788020A
Cited
US3992839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |