Patent US5473281A successfully refreshed from Google Patents.
Patent US4434994A successfully refreshed from Google Patents.
US4434994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boom axle
Assignee: Individual
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Filing: 1982-04-28
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Granted: 1984-03-06
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Expires: 2002-04-28
Abstract
Abstract A crane boom is supported during transport such that it may pivot about a horizontal axis located forward of the terrain contacting wheels of a support assembly. The support assembly is detachably connected to the boom and has a telescoping frame which is pivotally attached to the boom adjacent its forward end.
Inventors
- 👤 Julien H. Pepin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:10
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C23/26; B66C23/34; B66C23/344; B66C23/62
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
Apparatus for providing support for an elongated crane boom during over-terrain movement thereof, the boom being attached at a first end to a vehicle, said apparatus comprising: frame means, said frame means including a main body portion and an extendable forward portion; at least a first wheel set, said wheel set being mounted from said frame means main body portion and including an axle, said first wheel set further including means resiliently coupling said axle to said frame means; means affixed to said frame mean forward portion and defining a pivot axis which is parallel to and displaced from said wheel set axle; and means for detachably and rotatably coupling the boom to said pivot axis defining means intermediate the length of said boom whereby relative motion between a portion of said boom and said axle may occur.
Claim 2
Dependent Claim
138 words
Apparatus for providing support for an elongated crane boom during over-terrain movement thereof, the boom being attached at a first end to a vehicle, said apparatus comprising: frame means, said frame means including a main body portion and an extendable forward portion; at least a first wheel set, said wheel set being mounted from said frame means main body portion and including an axle, said first wheel set further including means resiliently coupling said axle to said frame means; means affixed to said frame mean forward portion and defining a pivot axis which is parallel to and displaced from said wheel set axle; and means for detachably and rotatably coupling the boom to said pivot axis defining means intermediate the length of said boom whereby relative motion between a portion of said boom and said axle may occur.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1 wherein said frame means has a rectangular shape and wherein said pivot defining means is positioned adjacent the forward end thereof in the direction of travel.
Claim 4
Dependent Claim
46 words
The apparatus of claim 2 further comprising: guide means mounted on said frame means main body portion adjacent the end thereof disposed oppositely with respect to said extendable forward portion, said guide means extending upwardly to engage and direct a crane boom onto said frame means.
Claim 5
Dependent Claim
40 words
The apparatus of claim 3 further comprising: shock absorbing means mounted on said frame means main body portion adjacent to said guide means, said shock absorbing means being positioned to be contacted by a crane boom supported on said apparatus.
Claim 6
Dependent Claim
66 words
The apparatus of claim 4 wherein said pivot defining means comprises: means defining channels having a pair of apertured side walls, a pair of said channel defining means being affixed to and extending upwardly from said frame means forward portion, the apertures in the side walls of said channel defining means being aligned and defining an axis which is parallel to the axis of said axle.
Claim 7
Dependent Claim
43 words
The apparatus of claim 5 wherein said coupling means comprises: apertured members extending from the crane boom; and lock pin means, said lock pin means extending through said channel defining means side wall apertures and said apertured members extending from the crane boom.
Claim 8
Dependent Claim
66 words
The apparatus of claim 1 wherein said pivot defining means comprises: means defining channels having a pair of apertured side walls, a pair of said channel defining means being affixed to and extending upwardly from said frame means forward portion, the apertures in the side walls of said channel defining means being aligned and defining an axis which is parallel to the axis of said axle.
Claim 9
Dependent Claim
43 words
The apparatus of claim 7 wherein said coupling means comprises: apertured members extending from the crane boom; and lock pin means, said lock pin means extending through said channel defining means side wall apertures and said apertured members extending from the crane boom.
Claim 10
Dependent Claim
46 words
The apparatus of claim 8 further comprising: guide means mounted on said frame means main body portion adjacent the end thereof disposed oppositely with respect to said extendable forward portion, said guide means extending upwardly to engage and direct a crane boom onto said frame means.
Claim 11
Dependent Claim
40 words
The apparatus of claim 9 further comprising: shock absorbing means mounted on said frame means main body portion adjacent to said guide means, said shock absorbing means being positioned to be contacted by a crane boom supported on said apparatus.
Claim 12
Dependent Claim
31 words
The apparatus of claim 10 wherein said frame means has a rectangular shape and wherein said pivot defining means is positioned adjacent the forward end thereof in the direction of travel.
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) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |