US3945741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-aligning hanger attachment bracket for structural steel joists
Assignee: Unimast Inc
•
Filing: 1975-01-06
•
Granted: 1976-03-23
•
Expires: 1995-01-06
Abstract
Abstract A hanger for mounting hollow metal joists perpendicular to headers and the like is disclosed. The hanger has a U-shaped top flange for hanging the hanger and a backplate suspended from the hanger with the backplate terminating at its bottom edge in a saddle for the joist to rest upon and with the backplate being bent outward and together at its upper portion to provide a support for the interior of the hollow metal joist.
Inventors
- 👤 Alan C. Wendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:45
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/58; E04B1/5806; E04B1/5818; F; F16; F16B; F16B7/00; F16B7/22; F16B9/00; F16B9/05; F16B9/052; F16B9/058; F16B2200/00; F16B2200/50; F16B2200/503; Y; Y10; Y10T; Y10T403/00; Y10T403/46; Y10T403/4602
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
In a hanger for mounting hollow metal joists perpendicular to headers and the like, including a U-shaped top flange for hanging the hanger and a backplate suspended from the top flange with said backplate having side flanges extending outward therefrom and said side flanges being connected at the bottom edge to form a saddle for the joist, the improvement comprising: divided side flanges forming a top and bottom portion of the side flanges, and the spacing of the top portions of the side flanges closer together, a hollow joist resting on the saddle and attached to the side flanges and encompassing the top of the top portions of the side flanges for additional support.
Claim 2
Dependent Claim
114 words
In a hanger for mounting hollow metal joists perpendicular to headers and the like, including a U-shaped top flange for hanging the hanger and a backplate suspended from the top flange with said backplate having side flanges extending outward therefrom and said side flanges being connected at the bottom edge to form a saddle for the joist, the improvement comprising: divided side flanges forming a top and bottom portion of the side flanges, and the spacing of the top portions of the side flanges closer together, a hollow joist resting on the saddle and attached to the side flanges and encompassing the top of the top portions of the side flanges for additional support.
Claim 3
Dependent Claim
95 words
In a hanger for mounting hollow metal joists perpendicular to headers and the like, including a U-shaped top flange for hanging the hanger, a backplate depending from the hanger for attachment to the header, and a saddle formed as an extension of the bottom of the backplate, the improvement comprising: peeled outward tops of the backplate with said peeled outward tops spaced together a distance no greater than the inside dimension of the hollow joist to be supported thereon, a hollow joist supported in the saddle and encompassing the peeled outward tops of the backplate.
Claim 4
Dependent Claim
95 words
In a hanger for mounting hollow metal joists perpendicular to headers and the like, including a U-shaped top flange for hanging the hanger, a backplate depending from the hanger for attachment to the header, and a saddle formed as an extension of the bottom of the backplate, the improvement comprising: peeled outward tops of the backplate with said peeled outward tops spaced together a distance no greater than the inside dimension of the hollow joist to be supported thereon, a hollow joist supported in the saddle and encompassing the peeled outward tops of the backplate.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |