US3681565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended staging incorporating automatic welding equipment
Assignee: Individual
•
Filing: 1969-09-29
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Granted: 1972-08-01
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Expires: 1989-09-29
Abstract
Abstract A welding torch is mounted at the upper end of a generally vertical swing arm. The lower end of such arm is pivotally connected to a lower frame portion of a single cable suspended staging. One or more tensioned hold-in lines hold the staging inwardly against the object on which welding work is being done. Each hold-in line rides on a sheave which is automatically controlled to move either towards or away from the object for the purpose of maintaining proper tension in the hold-in line. The swing arm is resiliently urged towards the object by an adjustable torsion spring mechanism. Cooling water for the welding torch is circulated through frame members of the staging, whereby such members function as both structural members and heat dissipating radiator members.
Inventors
- 👤 Sidney L Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:47
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/0209
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
193 words
A suspended staging comprising deck and frame means forming a compartment for a workman, said frame means including a transverse support bar at the lower forward portion of the staging; means for guiding said staging along a generally vertical path adjacent a generally vertical object; and welding equipment on said staging including a welding tool support in the form of a swing arm assembly having a sleeve at its lower end which surroundingly engages said transverse support bar and pivotally mounts said support arm on said support bar, and an upper free end portion for mounting a welding tool, an automatic welding tool mounted on said upper end portion of the swing arm assembly and facing said generally vertical object, guide means on said support adjacent said welding tool contacting the staging side of said generally vertical object, and means interconnected between said staging and said swing arm assembly for resiliently urging said swing arm assembly toward the generally vertical object, so as to maintain said guide means in contact with such object and the welding tool properly spaced therefrom, said means including torsion spring means interconnected between the support and said sleeve.
Claim 2
Dependent Claim
193 words
A suspended staging comprising deck and frame means forming a compartment for a workman, said frame means including a transverse support bar at the lower forward portion of the staging; means for guiding said staging along a generally vertical path adjacent a generally vertical object; and welding equipment on said staging including a welding tool support in the form of a swing arm assembly having a sleeve at its lower end which surroundingly engages said transverse support bar and pivotally mounts said support arm on said support bar, and an upper free end portion for mounting a welding tool, an automatic welding tool mounted on said upper end portion of the swing arm assembly and facing said generally vertical object, guide means on said support adjacent said welding tool contacting the staging side of said generally vertical object, and means interconnected between said staging and said swing arm assembly for resiliently urging said swing arm assembly toward the generally vertical object, so as to maintain said guide means in contact with such object and the welding tool properly spaced therefrom, said means including torsion spring means interconnected between the support and said sleeve.
Claim 3
Dependent Claim
37 words
A suspended staging according to claim 1, also comprising adjustable connector means between said welding tool and said swing arm assembly permitting rotational adjustment of said welding tool about the longitudinal axis of said swing arm assembly.
Claim 4
Dependent Claim
43 words
A suspended staging according to claim 1, wherein said welding tool includes holder means for holding welding wire and feeding it to the welding site, and means for sweeping said holder means and the welding wire carried thereby back-and-forth along a lateral path.
Claim 5
Dependent Claim
82 words
A suspended staging according to claim 1, wherein said torsion spring means includes an adjustment member surrounding and rotatable about said support bar, and a coil spring having one of its ends secured to the adjustment member and its other end secured to said sleeve, and means for holding said adjustment member fixed relative to said support bar following rotation of such member in a direction placing stored energy in said spring for biasing the arm assembly towards the generally vertical object.
Claim 6
Dependent Claim
83 words
A suspended staging according to claim 3, further including a suspension line for said staging, a drum on said staging onto which said line is wound to raise the staging and off from which the line is unwound to lower the staging, and variable speed motor means for rotating said drum, including a speed control, so that the drum speed and hence the staging travel rate can be adjusted and coordinated to the sweep speed of said holder means and the welding wire.
Claim 7
Dependent Claim
23 words
A suspended staging according to claim 3, wherein said staging includes a seat for the workman spaced rearwardly of said swing arm assembly.
Claim 8
Dependent Claim
118 words
A suspended staging comprising a cage at least partially composed of interconnected tubular column frame members and tubular cross frame members, together forming a continuous fluid passageway extendinG through said tubular frame members; heat generating welding apparatus on said staging including a welding tool component to be cooled incorporating a cooling fluid receiving chamber in heat exchange relationship with a heated zone from which heat is to be removed; and means for circulating a cooling fluid through said tubular members, then through said component to be cooled, and then back through said tubular members, so that such members together function as an air cooled radiator for the cooling fluid as well as being structural parts of the cage.
Claim 9
Dependent Claim
118 words
A suspended staging comprising a cage at least partially composed of interconnected tubular column frame members and tubular cross frame members, together forming a continuous fluid passageway extendinG through said tubular frame members; heat generating welding apparatus on said staging including a welding tool component to be cooled incorporating a cooling fluid receiving chamber in heat exchange relationship with a heated zone from which heat is to be removed; and means for circulating a cooling fluid through said tubular members, then through said component to be cooled, and then back through said tubular members, so that such members together function as an air cooled radiator for the cooling fluid as well as being structural parts of the cage.
Claim 10
Dependent Claim
69 words
A suspended staging according to claim 7, further including an inlet and an outlet for said radiator forming tubular frame members, and an inlet and an outlet for said cooling fluid chamber, and wherein said means for circulating the cooling fluid includes conduit means interconnected between the fluid outlet of said chamber and the fluid inlet of the radiator, and conduit means interconnected between the fluid outlet of the
Claim 11
Dependent Claim
81 words
A suspended staging according to claim 8, wherein said cage comprises spaced apart corner column frame members, laterally extending upper and lower cross frame members, and front-to-rear extending upper and lower cross frame members, all together forming a cage like working station, and means forming a floor for said working station, with at least some of said frame members being tubular and in fluid communication with each other to form a radiator having a substantial surface area exposure to ambient air.
Claim 12
Dependent Claim
25 words
A suspended staging according to claim 9, comprising electric welding equipment carried by said caging including a welding head constituting said component to be cooled.
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |