US3168771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable wing t form
Assignee: Individual
•
Filing: 1963-01-28
•
Granted: 1965-02-09
•
Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:23
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/40; E04G11/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A WING T CONCRETE FORM COMPRISING A PAIR OF FRAMES OF INVERTED L-SHAPE HAVING COMFRONTING SPACED APART VERTICAL LEGS FOR MOLDING THE VERTICAL WEB PORTION OF A T-SHAPED BEAM AND HAVING OPPOSITELY DISPOSED TRANSVERSE LEGS FOR MOLDING THE WING PORTIONS OF THE T, MEANS FOR PIVOTING SAID FRAMES ABOUT THE LOWER ENDS OF THEIR VERTICAL LEGS FOR BREAKING THE FRAMES AWAY FROM A MOLDED BEAM, MEANS SUPPORTING ONE OF SAID FRAMES FOR MOVEMENT LATERALLY TOWARD AND AWAY FROM THE OTHER FRAME, AND TRANSVERSELY EXTENDING ADJUSTABLE ANGLE WING FORMS PIVOTALLY CONNECTED AT THEIR INNER EDGES WITH SAID LFRAMES: SAID WING FORM PIVOTAL CONNECTIONS EACH COMPRISING A FORM PLATE ON SAID VERTICAL LEG HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE UPPER EDGE OF THE PLATE, A FORM PLATE ON SAID WING FORM HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE INNER EDGE OF THE PLATE, A RUBBER SEAL STRIP BETWEEN SAID FLANGES SPRING CLAMPS CLAMPING SAID CORNERS OF SAID PLATES AGAINST OPPOSITE SIDES OF SAID SEAL STRIP FOR RELATIVE PIVOTAL MOVEMENT, AND A BOLT CLAMP SECURING SAID L-FRAME AND SAID WING FORM TOGETHER IN ADJUSTED ANGULAR POSITION.
Claim 2
Dependent Claim
188 words
A WING T CONCRETE FORM COMPRISING A PAIR OF FRAMES OF INVERTED L-SHAPE HAVING COMFRONTING SPACED APART VERTICAL LEGS FOR MOLDING THE VERTICAL WEB PORTION OF A T-SHAPED BEAM AND HAVING OPPOSITELY DISPOSED TRANSVERSE LEGS FOR MOLDING THE WING PORTIONS OF THE T, MEANS FOR PIVOTING SAID FRAMES ABOUT THE LOWER ENDS OF THEIR VERTICAL LEGS FOR BREAKING THE FRAMES AWAY FROM A MOLDED BEAM, MEANS SUPPORTING ONE OF SAID FRAMES FOR MOVEMENT LATERALLY TOWARD AND AWAY FROM THE OTHER FRAME, AND TRANSVERSELY EXTENDING ADJUSTABLE ANGLE WING FORMS PIVOTALLY CONNECTED AT THEIR INNER EDGES WITH SAID LFRAMES: SAID WING FORM PIVOTAL CONNECTIONS EACH COMPRISING A FORM PLATE ON SAID VERTICAL LEG HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE UPPER EDGE OF THE PLATE, A FORM PLATE ON SAID WING FORM HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE INNER EDGE OF THE PLATE, A RUBBER SEAL STRIP BETWEEN SAID FLANGES SPRING CLAMPS CLAMPING SAID CORNERS OF SAID PLATES AGAINST OPPOSITE SIDES OF SAID SEAL STRIP FOR RELATIVE PIVOTAL MOVEMENT, AND A BOLT CLAMP SECURING SAID L-FRAME AND SAID WING FORM TOGETHER IN ADJUSTED ANGULAR POSITION.
References Cited (Backward Citations)
US727272A
Cited
US1688627A
Cited
US2495100A
Cited
US3092886A
Cited
US3071837A
Cited
US3075240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |