US3726362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A c scaffold frame
Assignee: TRIO LEASING
•
Filing: 1972-03-13
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Granted: 1973-04-10
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Expires: 1992-03-13
Abstract
Abstract A scaffold member for use with one or more identical members consisting of a pair of elongated members normally positioned in a vertical position, joined by a plurality of rungs forming a ladder and joined to a pair of upper and lower ledgers cantilevered from the ends of said elongated members and adapted for receiving scaffold plank.
Inventors
- 👤 J Puckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:12
CPC Classifications
E; E04; E04G; E04G5/00; E04G1/00; E04G1/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
163 words
A C-frame scaffold unit for use in a scaffold system comprising: a. a pair of elongated inner and outer members arranged in parallel spaced relationship normally adapted for mounting in a substantially vertical position; b. a plurality of rungs arranged in parallel spaced relationship connected to said elongated members at substantially right angles and adapted for use as a ladder for climbing said scaffold; c. a bottom ledger connected to the lower ends of said elongated members, terminating at said outside member and extending outwardly of said inner member terminating at a distal end; d. an upper ledger connected to the upper ends of said elongated members, terminating at said outside member and extending outwardly of said inner member in parallel relation with said lower ledger member and terminating at a distal end; and e. connecting means located at the ends of said outer elongated member and the distal ends of said upper and lower ledgers adapted for connection to other scaffold members.
Claim 2
Dependent Claim
163 words
A C-frame scaffold unit for use in a scaffold system comprising: a. a pair of elongated inner and outer members arranged in parallel spaced relationship normally adapted for mounting in a substantially vertical position; b. a plurality of rungs arranged in parallel spaced relationship connected to said elongated members at substantially right angles and adapted for use as a ladder for climbing said scaffold; c. a bottom ledger connected to the lower ends of said elongated members, terminating at said outside member and extending outwardly of said inner member terminating at a distal end; d. an upper ledger connected to the upper ends of said elongated members, terminating at said outside member and extending outwardly of said inner member in parallel relation with said lower ledger member and terminating at a distal end; and e. connecting means located at the ends of said outer elongated member and the distal ends of said upper and lower ledgers adapted for connection to other scaffold members.
Claim 3
Dependent Claim
47 words
A C-frame scaffold as described in claim 1 comprising: a. said connecting means located at the distal end of said lower ledger includes a stub extending in a direction toward said upper ledger adapted for restraining the movement of planks adapted for resting upon said lower ledger.
Claim 4
Dependent Claim
26 words
A C-frame scaffold as described in claim 1 comprising: a. locking studs connected to said inner elongated member in spaced relation adapted for receiving bracing members.
Claim 5
Dependent Claim
35 words
A C-frame scaffold as described in claim 1 comprising: a. said connecting means located on said lower ledger member consisting of elongated tubular members adapted for receipt of standard screw jacks for ground leveling adjustment.
Claim 6
Dependent Claim
25 words
A C-frame scaffold as described in claim 1 comprising: a. said connecting means on said lower ledger being adapted for connection to standard steel scaffolding.
Claim 7
Dependent Claim
27 words
A C-frame scaffold as described in claim 1 comprising: a. said connecting means being located so that identical C-frame members can be connected in vertical stacked relation.
Claim 8
Dependent Claim
62 words
A C-frame scaffold as described in claim 3 comprising: a. an identical C-frame as described in claim 3 positioned in horizontal spaced relation and adapted for connection by bracing members; b. said pair of scaffold members adapted for receiving planks carried by said respective lower ledger members and presenting an unobstructed working area outwardly of said distal ends of said ledger members.
References Cited (Backward Citations)
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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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |