US3945462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanger brackets
Assignee: Individual
•
Filing: 1975-06-18
•
Granted: 1976-03-23
•
Expires: 1995-06-18
Abstract
Abstract Hanger brackets for suspending working scaffold or platform floors from overhead supports. Paired legs adjustably and pivotally joined together in scissors arrangement have finger ends for engaging overhead beams or elements thereof as depending portions of the legs that extend beneath the center pivot are moved inwardly. A spreader bar having a plurality of position adjustment openings is engaged between the depending legs to lock the fingers and bracket in place. The lower leg ends also provide a plurality of adjustment openings so the spreader bar may be engaged at alternate elevations for accommodating various staging or joist type components and for facilitating the attachment of safety elements.
Inventors
- 👤 James D. Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:50
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/22; E04G5/00; E04G5/04; E04G5/045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
180 words
Hanger brackets for the suspension of platform elements from the overhead supports of a building comprising paired components of similar construction wherein each component is inclusive of a gripping end for upward disposition to engage the building support and elongated force transmitting legs disposed angularly away from said gripping ends to depend downwardly therefrom, with each of said legs providing a plurality of longitudinally spaced apart pivot openings disposed centrally of the length thereof and with each of said legs further providing a plurality of adjustment holes disposed in longitudinally spaced positions at the second and lower ends thereof, and a pivot pin for selective disposition through separate openings in each of said leg pairs whereby the legs are joined together in scissors arrangement with the gripping ends of each leg being disposed inwardly for movement toward mutual contact, a spreader bar for extension between the otherwise free lower ends of said legs, and fasteners for selectively joining said spreader bar and the lower leg ends together when the gripping ends of said brackets are engaged to a building support.
Claim 2
Dependent Claim
180 words
Hanger brackets for the suspension of platform elements from the overhead supports of a building comprising paired components of similar construction wherein each component is inclusive of a gripping end for upward disposition to engage the building support and elongated force transmitting legs disposed angularly away from said gripping ends to depend downwardly therefrom, with each of said legs providing a plurality of longitudinally spaced apart pivot openings disposed centrally of the length thereof and with each of said legs further providing a plurality of adjustment holes disposed in longitudinally spaced positions at the second and lower ends thereof, and a pivot pin for selective disposition through separate openings in each of said leg pairs whereby the legs are joined together in scissors arrangement with the gripping ends of each leg being disposed inwardly for movement toward mutual contact, a spreader bar for extension between the otherwise free lower ends of said legs, and fasteners for selectively joining said spreader bar and the lower leg ends together when the gripping ends of said brackets are engaged to a building support.
Claim 3
Dependent Claim
38 words
Hanger brackets as set forth in claim 1 wherein said spreader bar operates additionally as a lock disposed at a lower position on said hanger brackets for ready access whereby pivotal opening movements of said legs are prevented.
Claim 4
Dependent Claim
43 words
Hanger brackets as set forth in claim 2 wherein said pivot pins are selectively disposed in said longitudinally spaced apart pivot openings to provide changed operative lengths for said spreader bar whereby platform elements of varied width are accommodated between said paired legs.
Claim 5
Dependent Claim
35 words
Hanger brackets as set forth in claim 2 wherein said spreader bar is selectively positioned at varied elevations through use of alternate adjustment holes in said legs whereby platform elements of varied height are accommodated.
Claim 6
Dependent Claim
37 words
Hanger brackets as set forth in claim 2 and further comprising contact pieces at the gripping ends of said leg components for disposition along the length of the building supports to increase the stability of said brackets.
Claim 7
Dependent Claim
28 words
Hanger brackets as set forth in claim 5 and further comprising a hand rail element disposed between adjacent hanger brackets to further increase the stability of said platform.
Claim 8
Dependent Claim
27 words
Hanger brackets as set forth in claim 6 wherein the pivot openings provided for the scissors pivot pin are additionally used for attachment of said hand rail.
Claim 9
Dependent Claim
27 words
Hanger brackets as set forth in claim 5 and further comprising a toe board disposed between adjacent hanger brackets to further increase the stability of said platform.
Claim 10
Dependent Claim
24 words
Hanger brackets as set forth in claim 8 wherein adjustment holes for said spreader bar are additionally used for attachment of said toe board.
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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 |