US3690408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable and extensible elbow
Assignee: TEL E LECT
•
Filing: 1970-05-08
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Granted: 1972-09-12
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Expires: 1990-05-08
Abstract
Abstract A mobile aerial tower comprised of a mobile platform having a boom with an extensible section and a personnel-carrying platform or bucket mounted on an auxiliary elbow section which is pivoted on a bracket through various types of motive means and with the provisions for mounting the bracket selectively at either the end of the main boom section or the extensible portion of the same. The elbow section is also extendable to vary the length of the same.
Inventors
- 👤 Albert E Reske
- 👤 Orlo J Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:11
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044; B66F11/046
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
A mobile aerial tower comprising, a mobile platform, an articulated boom mounted on the platform, a slidable boom extension telescopically mounted in the articulated boom and includiNg motive means for extending and retracting the same, an elbow member, bracket means slidably mounted on said boom extension and pivotally mounting the elbow member on the boom extension, power means mounted on the bracket means and connected to the elbow member pivoting the same on the bracket means, means on said bracket means for preventing free movement of said bracket means, and a personnel-carrying basket journaled at the free end of the elbow member.
Claim 2
Dependent Claim
102 words
A mobile aerial tower comprising, a mobile platform, an articulated boom mounted on the platform, a slidable boom extension telescopically mounted in the articulated boom and includiNg motive means for extending and retracting the same, an elbow member, bracket means slidably mounted on said boom extension and pivotally mounting the elbow member on the boom extension, power means mounted on the bracket means and connected to the elbow member pivoting the same on the bracket means, means on said bracket means for preventing free movement of said bracket means, and a personnel-carrying basket journaled at the free end of the elbow member.
Claim 3
Dependent Claim
26 words
The mobile aerial tower of claim 1 in which the power means pivoting the elbow member on the bracket means pivots the same for limited rotation.
Claim 4
Dependent Claim
27 words
The mobile aerial tower of claim 1 in which the power means pivoting the elbow member on the bracket means pivots the elbow member for unrestricted rotation.
Claim 5
Dependent Claim
122 words
A mobile aerial tower comprising, a mobile platform, an articulated boom mounted on the platform, a slidable boom extension telescopically mounted in the articulated boom and including motive means for extending and retracting the same, an elbow member, bracket means pivotally mounting the elbow member on the boom extension, power means mounted on the bracket means and connected to the elbow member pivoting the same on the bracket means, and a personnel-carrying basket journaled at the free end of the elbow, said power means pivoting the elbow member on the bracket means for unrestricted rotation including a spiroid gear and rotary motor with cooperative gearing on the elbow member to provide 360* rotation of the elbow member relative to the bracket means.
Claim 6
Dependent Claim
122 words
A mobile aerial tower comprising, a mobile platform, an articulated boom mounted on the platform, a slidable boom extension telescopically mounted in the articulated boom and including motive means for extending and retracting the same, an elbow member, bracket means pivotally mounting the elbow member on the boom extension, power means mounted on the bracket means and connected to the elbow member pivoting the same on the bracket means, and a personnel-carrying basket journaled at the free end of the elbow, said power means pivoting the elbow member on the bracket means for unrestricted rotation including a spiroid gear and rotary motor with cooperative gearing on the elbow member to provide 360* rotation of the elbow member relative to the bracket means.
Claim 7
Dependent Claim
56 words
The mobile aerial tower of claim 2 in which the power means on the bracket means and pivoting the elbow member thereon includes a linear hydraulic actuator operating a rack type gearing and cooperative with a pinion gear mounted on the elbow means for restricted rotational movement of the elbow member relative to the bracket means.
Claim 8
Dependent Claim
32 words
The mobile aerial tower of claim 1 in which the elbow member includes a pair of slidable parts permitting longitudinal extension and retraction of the elbow member relative to the bracket means.
Claim 9
Dependent Claim
38 words
The mobile aerial tower of claim 6 and including motive means connected between the slidable parts and the elbow member to slidably extend and retract the elbow member and the personnel-carrying support thereon relative to the bracket means.
Claim 10
Dependent Claim
44 words
The mobile aerial tower of claim 1 in which the means preventing free movement of the bracket means includes means releasably connecting the bracket means selectively to the free extremity of the articulated boom and the extremity of the slidable boom extension positioned therein.
Claim 11
Dependent Claim
39 words
The mobile aerial tower of claim 8 in which the bracket means is slidably mounted on the boom extension and movable between the extremity of the articulated boom and the extremity of the boom extension for selectively positioning thereon.
Claim 12
Dependent Claim
56 words
The mobile aerial tower of claim 8 in which the means preventing free movement of the bracket means includes securing means positioned in part on the bracket means and in part on the slidable boom extension and the articulated boom for selectively locking the bracket means on the articulated boom and the slidable boom extension therein.
Claim 13
Dependent Claim
108 words
A mobile aerial tower comprising, a mobile platform, an articulated boom member mounted on the platform, a slidable boom extension member telescopically mounted in the articulated boom member and including motive means for extending and retracting the same, an elbow member, bracket means slidably mounted on one of said members and pivotally mounting the elbow member, power means mounted on the bracket means and connected to the elbow member pivoting the same on said bracket means, means on said bracket means for preventing free movement of said bracket means on said one of said members, and a personnel-carrying basket journaled at the free end of the elbow member.
Claim 14
Dependent Claim
108 words
A mobile aerial tower comprising, a mobile platform, an articulated boom member mounted on the platform, a slidable boom extension member telescopically mounted in the articulated boom member and including motive means for extending and retracting the same, an elbow member, bracket means slidably mounted on one of said members and pivotally mounting the elbow member, power means mounted on the bracket means and connected to the elbow member pivoting the same on said bracket means, means on said bracket means for preventing free movement of said bracket means on said one of said members, and a personnel-carrying basket journaled at the free end of the elbow member.
Claim 15
Dependent Claim
43 words
The mobile aerial tower of claim 11 and including means included in the elbow member to slidably extend and retract the same for altering tHe position of the personnel-carrying means at the end of the elbow member relative to the support bracket means.
References Cited (Backward Citations)
US3252543A
Cited
US3149694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |