US3861498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counterbalancing chassis for aerial platform apparatus
Assignee: Fulton Industries Inc
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Filing: 1973-07-13
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Granted: 1975-01-21
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Expires: 1993-07-13
Abstract
Abstract An aerial platform apparatus includes a chassis supported by wheels, the chassis carrying centrally thereof a boom support revolvable on a vertical axis. A boom carried by the boom support carries a load at its outer end. The chassis is rectangular in plan form, having a pair of transversely spaced, longitudinally extending chassis members which are each unitary, rectangular in vertical cross section and of a thickness greater than required to resist strains to thereby provide an integral counterweight and chassis member.
Inventors
- 👤 John L Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:44
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044; B66F11/046
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
Aerial platform apparatus comprising: a. a chassis and ground engaging wheels supporting said chassis; b. said chassis comprising: i. a pair of longitudinally extending chassis members, each being a unitary, integral slab of metal having a vertical rectangular cross section; ii. front and rear transversely extending chassis members joined to said longitudinally extending chassis members adjacent the ends thereof; and iii. front and rear intermediate transverse members extending between said longitudinally extending chassis members spaced apart approximately the same distance as said longitudinally extending chassis members and lying adjacent the longitudinal center of said chassis; c. cylindrical support means extending upwardly from and supported on both said longitudinally extending members and both said intermediate transverse members, said cylindrical support means having a diameter substantially the same as said distance between said members, d. rotatable boom support means on said cylindrical support means, and e. a boom carried by said boom support means and having a platform on the outer end thereof.
Claim 2
Dependent Claim
161 words
Aerial platform apparatus comprising: a. a chassis and ground engaging wheels supporting said chassis; b. said chassis comprising: i. a pair of longitudinally extending chassis members, each being a unitary, integral slab of metal having a vertical rectangular cross section; ii. front and rear transversely extending chassis members joined to said longitudinally extending chassis members adjacent the ends thereof; and iii. front and rear intermediate transverse members extending between said longitudinally extending chassis members spaced apart approximately the same distance as said longitudinally extending chassis members and lying adjacent the longitudinal center of said chassis; c. cylindrical support means extending upwardly from and supported on both said longitudinally extending members and both said intermediate transverse members, said cylindrical support means having a diameter substantially the same as said distance between said members, d. rotatable boom support means on said cylindrical support means, and e. a boom carried by said boom support means and having a platform on the outer end thereof.
Claim 3
Dependent Claim
47 words
The aerial platform apparatus of claim 1, wherein said boom is positionable to extend transversely of the longitudinally extending members, whereby a tipping moment is generated about an axis parallel to the longitudinal axis of the chassis and is counterbalanced by a said longitudinally extending chassis member.
Claim 4
Dependent Claim
12 words
The aerial platform apparatus of claim 2, wherein said boom is extensible.
Claim 5
Dependent Claim
19 words
The aerial platform apparatus of claim 3, said chassis further comprising diagonal braces extending from said longitudinally extending members.
Claim 6
Dependent Claim
19 words
The aerial platform apparatus of claim 1, said chassis further comprising diagonal braces extending from said longitudinally extending members.
Claim 7
Dependent Claim
25 words
The aerial platform apparatus of claim 1, said intermediate transverse members having upper surfaces substantially coplanar with upper surfaces of said longitudinally extending chassis members.
Claim 8
Dependent Claim
15 words
The aerial platform apparatus of claim 6, wherein said intermediate transverse members are structural sections.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |