US3608669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge-painting apparatus and method
Assignee: Bridge Painting Inc
•
Filing: 1969-12-02
•
Granted: 1971-09-28
•
Expires: 1989-12-02
Abstract
Abstract A bridge-painting apparatus employing an extensible scaffold means and method of folding the latter whereby the apparatus may be transported by a motor vehicle. The apparatus includes a mast or boom with means for extending the boom over the side of a bridge to be painted and means for raising and lowering it. The boom is provided with a reinforcing frame construction to which the extensible scaffold means is secured. A split collar construction permits the boom to be raised and lowered without dismantling any of the apparatus whereby the apparatus may be ready for operation and/or removal in an extremely short period of time. A remote control means is provided whereby the apparatus may be extended or collapsed with great facility. The vehicle on which the apparatus is mounted is provided with abutment or curbsensing means whereby the vehicle may be driven remotely and automatically.
Inventors
- 👤 Lewis L Lindsay Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:03
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/10; E01D19/106
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
60 words
In a bridge-painting apparatus of the type having a boom, means for extending said boom over a side of a bridge to be painted, and means for raising and lowering said boom, the improvement comprising a split collar construction through which said boom may be raised and lowered whereby said apparatus may be collapsed without dismantling any of said apparatus.
Claim 2
Dependent Claim
60 words
In a bridge-painting apparatus of the type having a boom, means for extending said boom over a side of a bridge to be painted, and means for raising and lowering said boom, the improvement comprising a split collar construction through which said boom may be raised and lowered whereby said apparatus may be collapsed without dismantling any of said apparatus.
Claim 3
Dependent Claim
54 words
A bridge-painting apparatus as defined in claim 1 including a. reinforcing frame means carried by said boom, b. attaching means for securing said reinforcing frame means to said boom, c. and means to rotate said boom so as to obtain vertical alignment of said attaching means with the split in said split collaR construction.
Claim 4
Dependent Claim
21 words
A bridge-painting apparatus as defined in claim 1 including extensible scaffold means carried by said boom and said frame reinforcing means.
Claim 5
Dependent Claim
20 words
A bridge-painting apparatus as defined in claim 3 including a motor vehicle on which said bridge painting apparatus is mounted.
Claim 6
Dependent Claim
22 words
A bridge-painting apparatus as defined in claim 4 including remote control means for controlling said motor vehicle and said bridge painting apparatus.
Claim 7
Dependent Claim
20 words
A bridge-painting apparatus as defined in claim 5 wherein said remote control means is operable from said extensible scaffold means.
Claim 8
Dependent Claim
41 words
A bridge-painting apparatus as defined in claim 4 including sensing means mounted on said motor vehicle for sensing abutment means on said bridge whereby said vehicle may be driven continuously and automatically while said apparatus is used in painting said bridge.
Claim 9
Dependent Claim
53 words
A bridge-painting apparatus as defined in claim 7 including a. reinforcing frame means carried by said boom, b. attaching means for securing said frame-reinforcing means to said boom, c. and means to rotate said boom so as to obtain vertical alignment of said attaching means with the split in said split collar construction.
Claim 10
Dependent Claim
31 words
A bridge-painting apparatus as defined in claim 1 including means for varying the angle that said boom makes with the vertical when said boom extends over a side of said bridge.
Claim 11
Dependent Claim
42 words
A bridge-painting apparatus as defined in claim 1 wherein said boom has extensible scaffold means carried thereby and including counterweight means to balance said means for extending said boom over a side of said bridge, said boom and said extensible scaffold means.
Claim 12
Dependent Claim
27 words
A bridge-painting apparatus as defined in claim 10 including means independent of the position of said boom for tilting said extensible scaffold means in a vertical plane.
Claim 13
Dependent Claim
31 words
A bridge-painting apparatus as defined in claim 1 wherein said split collar construction is carried by said means for extending said boom over a side of the bridge to be painted.
Claim 14
Dependent Claim
73 words
A portable bridge-painting apparatus comprising: a. a truck bed, b. a turntable mounted for rotation on said truck bed, c. a boom-holding frame mounted on said turntable, d. a boom held in said boom-holding frame, e. extensible scaffold means carried by said boom, f. and a split collar construction held by said boom holding frame and through which said boom may be raised and lowered without dismantling any of said bridge painting apparatus.
Claim 15
Dependent Claim
73 words
A portable bridge-painting apparatus comprising: a. a truck bed, b. a turntable mounted for rotation on said truck bed, c. a boom-holding frame mounted on said turntable, d. a boom held in said boom-holding frame, e. extensible scaffold means carried by said boom, f. and a split collar construction held by said boom holding frame and through which said boom may be raised and lowered without dismantling any of said bridge painting apparatus.
Claim 16
Dependent Claim
27 words
A portable bridge-painting apparatus as defined in claim 13 including a reinforcing frame construction affixed to said boom and to which said extensible scaffold means is attached.
Claim 17
Dependent Claim
30 words
A portable bridge-painting construction as defined in claim 13 wherein said boom-holding frame has a fixed part and a movable part with said boom being held by said movable part.
Claim 18
Dependent Claim
28 words
A portable bridge-painting apparatus as defined in claim 15 wherein said movable part of said boom-holding frame is telescopically received in said fixed part of said boom-holding frame.
Claim 19
Dependent Claim
24 words
A portable bridge-painting apparatus as defined in claim 16 wherein hydraulic cylinder means is used to move said movable part of said boom-holding frame.
Claim 20
Dependent Claim
61 words
A portable bridge painting apparatus comprising: a. a truck bed, b. a turntable mounted for rotation on said truck bed, c. a boom-holding frame mounted on said turntable, d. a boom held in said boom-holding frame, e. extensible scaffold means carried by said boom, f. and means to tilt said boom-holding frame with respect to the plane of said truck bed.
Claim 21
Dependent Claim
61 words
A portable bridge painting apparatus comprising: a. a truck bed, b. a turntable mounted for rotation on said truck bed, c. a boom-holding frame mounted on said turntable, d. a boom held in said boom-holding frame, e. extensible scaffold means carried by said boom, f. and means to tilt said boom-holding frame with respect to the plane of said truck bed.
Claim 22
Dependent Claim
28 words
A portable bridge-painting apparatus as defined in claim 13 including means independent of the position of said boom for tilting said extensible scaffold means in a vertical plane.
Claim 23
Dependent Claim
36 words
A portable bridge-painting apparatus as defined in claim 13, wherein said boom is held by said boom-holding frame from one side of said platform, and said platform has counterweight means mounted on the oppOsite side thereof.
Claim 24
Dependent Claim
24 words
A portable bridge-painting apparatus as defined in claim 20 including means to position said counterweight means outwardly of said opposite side of said platform.
Claim 25
Dependent Claim
36 words
A portable bridge-painting apparatus as defined in claim 13 including means to vary in a substantially horizontal plane the angle that said extensible scaffold means makes with said boom to compensate for skewed bridge holding piers.
Claim 26
Dependent Claim
14 words
A portable bridge-painting apparatus as defined in claim 13 wherein said boom is articulated.
Claim 27
Dependent Claim
84 words
A portable bridge-painting apparatus as defined in claim 13 including remote control means on said extensible scaffold means by which the extension and contraction of said extensible scaffold means and the position of said boom is controlled, whereby said apparatus is moved to and from a stacked position on said truck bed to a bridge-painting position in which said boom is vertically suspended over the side of the bridge to be painted and said extensible scaffold means extends beneath the bridge to be painted.
Claim 28
Independent Claim
175 words
A method of folding and unfolding an extensible scaffold means for a bridge-painting apparatus and placing said extensible scaffold means on the bed of a motor vehicle, said bridge-painting apparatus including a truck bed, a turntable mounted for rotation on said truck bed, a boom-holding frame mounted on said turntable, a boom held in said boom-holding frame, a split collar construction held by said boom-holding frame and through which said boom is vertically reciprocable, said extensible scaffold means being carried by said boom, reinforcing frame means carried by said boom, and attaching means for securing said reinforcing frame means to said boom, comprising the steps of: a. rotating said boom and said reinforcing frame to align said attaching means of said reinforcing frame with the split in said split collar construction, b. elevating said boom, said reinforcing frame and said extensible scaffold means by passing said attaching means through the split of said split collar construction, c. and rotating said turntable on said truck bed whereby said bridge-painting apparatus may be transported over a highway.
Claim 29
Independent Claim
175 words
A method of folding and unfolding an extensible scaffold means for a bridge-painting apparatus and placing said extensible scaffold means on the bed of a motor vehicle, said bridge-painting apparatus including a truck bed, a turntable mounted for rotation on said truck bed, a boom-holding frame mounted on said turntable, a boom held in said boom-holding frame, a split collar construction held by said boom-holding frame and through which said boom is vertically reciprocable, said extensible scaffold means being carried by said boom, reinforcing frame means carried by said boom, and attaching means for securing said reinforcing frame means to said boom, comprising the steps of: a. rotating said boom and said reinforcing frame to align said attaching means of said reinforcing frame with the split in said split collar construction, b. elevating said boom, said reinforcing frame and said extensible scaffold means by passing said attaching means through the split of said split collar construction, c. and rotating said turntable on said truck bed whereby said bridge-painting apparatus may be transported over a highway.
Claim 30
Dependent Claim
41 words
A method of folding and unfolding an extensible scaffold means for a bridge-painting apparatus as defined in claim 25 including the additional step of collapsing said boom and laying it down in a direction toward the plane of said truck bed.
Claim 31
Dependent Claim
39 words
A method of folding and unfolding an extensible scaffold means for a bridge-painting apparatus as defined in claim 25 including the additional step of extending said extensible scaffold means in a direction toward the plane of said truck bed.
Claim 32
Dependent Claim
85 words
A method of folding and unfolding an extensible scaffold means for a bridge-painting apparatus as defined in claim 25 wherein said boom-holding frame is mounted on one side of said turntable and counterweight means are mounted on an opposite side of said turntable, said counterweight means being movable between an extended position and a nonextended position, and said method further includes the step of positioning said counterweight means in its nonextended position when said bridge-painting apparatus is in position to be transported over a highway.
References Cited (Backward Citations)
US2121480A
Cited
US2598730A
Cited
US2669490A
Cited
US3076522A
Cited
DE1216914B
Cited
US3357517A
Cited
US3400771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |