Patent US3977536A successfully refreshed from Google Patents.
US3977536A
Expired / Lapsed
US
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Concrete construction method and apparatus using "flying" truss deck forms
Assignee: MM Sundt Construction Co
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Filing: 1975-06-09
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Granted: 1976-08-31
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Expires: 1995-06-09
Abstract
Abstract Method and apparatus for constructing buildings having multiple poured concrete floors using "flying" truss deck forms, the apparatus including shore jacks fixed to the deck supporting trusses and retractable above the bottoms of the trusses and extensible therebelow to support the deck form on the next lower floor, and including form -supporting dollies having caster-mounted floor engaging wheels and having jacks mounted thereon for supporting the trusses of the deck forms and for raising and lowering the latter and the method including a way of extending a truss beyond the outside edge of the building below the floor which it has just supported so that it can be rigged to a crane and "flown" to the next level to be poured.
Inventors
- 👤 S. Thomas Moore
- 👤 Eugene N. Carlier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:45
CPC Classifications
E; E04; E04G; E04G19/00; E04G19/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
239 words
Apparatus for handling a flying deck form for construction of successive floors supported on columns in a poured concrete building, the deck form having underlying trusses extending downwardly through a vertical height which is a substantial fraction of the separation between floor levels, the apparatus comprising: a. a plurality of shore jacks having outer sleeve members vertically mounted in spaced relation on the trusses of the form and each ending above the bottoms of the trusses, and the jacks having slide members telescopically retractable upwardly within the sleeve members to a level above the bottoms of the trusses; and b. a plurality of dollies for supporting the deck forms and for moving them horizontally and vertically, each dolly comprising a frame having caster-mounted floor-engaging wheels; a dolly jack having a fixed jack member mounted vertically on the frame and having a movable jack member cooperating with said fixed member for vertical movement, and having truss-receiving means on said movable jack member for engaging the bottom of a truss; and means on the dolly for operating the dolly jack to raise the truss-receiving means from a downwardly retracted position in which its height above the floor plus the height of a truss is less than said separation between floor levels to an extended jack position in which the height of the truss-receiving means plus the height of a truss is at least as great as said separation between floor levels.
Claim 2
Dependent Claim
239 words
Apparatus for handling a flying deck form for construction of successive floors supported on columns in a poured concrete building, the deck form having underlying trusses extending downwardly through a vertical height which is a substantial fraction of the separation between floor levels, the apparatus comprising: a. a plurality of shore jacks having outer sleeve members vertically mounted in spaced relation on the trusses of the form and each ending above the bottoms of the trusses, and the jacks having slide members telescopically retractable upwardly within the sleeve members to a level above the bottoms of the trusses; and b. a plurality of dollies for supporting the deck forms and for moving them horizontally and vertically, each dolly comprising a frame having caster-mounted floor-engaging wheels; a dolly jack having a fixed jack member mounted vertically on the frame and having a movable jack member cooperating with said fixed member for vertical movement, and having truss-receiving means on said movable jack member for engaging the bottom of a truss; and means on the dolly for operating the dolly jack to raise the truss-receiving means from a downwardly retracted position in which its height above the floor plus the height of a truss is less than said separation between floor levels to an extended jack position in which the height of the truss-receiving means plus the height of a truss is at least as great as said separation between floor levels.
Claim 3
Dependent Claim
62 words
Apparatus as set forth in claim 1, wherein said shore jacks comprise long-extension jacks extendable to reach the floor when the deck form is raised to the level of the next floor to be poured, and the shore jacks including coarse adjustment means for changing their extension in step increments and fine adjustment means for changing their extension between said step increments.
Claim 4
Dependent Claim
61 words
Apparatus as set forth in claim 2, wherein each dolly jack comprises a long-stroke hydraulic jack whose fixed member comprises a cylinder and whose movable member comprises piston means telescopically received in said cylinder, and said operating means comprises hydraulic pump means mounted on the dolly and coupled to the cylinder and selectively operative to raise and lower said piston means.
Claim 5
Dependent Claim
36 words
Apparatus as set forth in claim 1, wherein said truss receiving means comprises an upwardly opening channel fixed to the top of said movable member and serving as a cradle to receive and support a truss.
References Cited (Backward Citations)
US3899152A
Cited
US3902289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |