Patent US2524195A successfully refreshed from Google Patents.
US3864876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixture for a blast cleaning machine
Assignee: Wheelabrator Corp
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Filing: 1974-04-15
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Granted: 1975-02-11
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Expires: 1994-04-15
Abstract
Abstract This invention relates to a fixture for a blast cleaning machine. The fixture is portable and adapted to be positioned on a metallic surface and secured thereto by electromagnets. A blast cleaning device is attached to the fixture, on a movable carriage, for movement along the fixture under control of a motor operated hoist. When cleaning is finished, the fixture is released and moved to the next segment of the surface to be cleaned. A linkage assembly assures that the blast cleaning device is maintained in intimate contact with the surface to be cleaned, and a set of opposed rollers assures that the blast cleaning device moves only in the intended direction.
Inventors
- 👤 Philip H Diehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:03
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/02; B24C3/06; B24C3/062
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
66 words
A portable device for movably securing a blast cleaning machine to a ferromagnetic surface comprising: a. a rectangular frame; b. electromagnetic means on said frame for releasably securing said frame to said surface; c. a carriage movable on said frame; and d. means for linking said blast cleaning machine to said carriage for movement therewith and for maintaining said machine in intimate contact with said surface.
Claim 2
Dependent Claim
66 words
A portable device for movably securing a blast cleaning machine to a ferromagnetic surface comprising: a. a rectangular frame; b. electromagnetic means on said frame for releasably securing said frame to said surface; c. a carriage movable on said frame; and d. means for linking said blast cleaning machine to said carriage for movement therewith and for maintaining said machine in intimate contact with said surface.
Claim 3
Dependent Claim
58 words
A portable device according to claim 1 wherein said means for linking includes: a. a swing linkage adapted to permit small movements of said blast cleaning device relative to said carriage in a direction normal to the direction of carriage movement; and b. actuator means for urging and maintaining the blast cleaning machine in contact with said surface.
Claim 4
Dependent Claim
26 words
The device according to claim 1 wherein said frame includes: a. two longitudinal members; and b. two transverse members connecting said longitudinal members at their ends.
Claim 5
Dependent Claim
25 words
The device according to claim 3 wherein said electromagnetic means are mounted on legs attached to said frame at the ends of the longitudinal members.
Claim 6
Dependent Claim
34 words
The device according to claim 1 wherein said carriage includes a plurality of rollers adapted to engage said frame to permit linear movement along its length but to restrict movement in any other direction.
Claim 7
Dependent Claim
32 words
The device according to claim 3 wherein said carriage includes a plurality of rollers adapted to engage said frame to permit linear movement only in a direction parallel to the longitudinal members.
Claim 8
Dependent Claim
13 words
The device according to claim 2 wherein said actuator means are hydraulic cylinders.
Claim 9
Dependent Claim
24 words
The device according to claim 1 further including a motor driven hoist connected to said carriage for selectively moving said carriage on said frame.
Claim 10
Dependent Claim
24 words
The device according to claim 6 further including a motor driven hoist connected to said carriage for selectively moving said carriage on said frame.
Claim 11
Dependent Claim
116 words
A portable device for movably securing a blast cleaning machine to a ferromagnetic surface comprising; a. a rectangular frame comprising two longitudinal members and two transverse members connecting said longitudinal members at their ends; b. electromagnetic means mounted on legs attached to said frame at the ends of the longitudinal members for releasably securing said frame to said surface; c. a carriage movable on said frame and including a plurality of rollers adapted to engage said frame to permit linear movement only in a direction parallel to said longitudinal members; and d. means for linking said blast cleaning device to said carriage for movement therewith, and for maintaining said machine in intimate contact with said surface.
Claim 12
Dependent Claim
116 words
A portable device for movably securing a blast cleaning machine to a ferromagnetic surface comprising; a. a rectangular frame comprising two longitudinal members and two transverse members connecting said longitudinal members at their ends; b. electromagnetic means mounted on legs attached to said frame at the ends of the longitudinal members for releasably securing said frame to said surface; c. a carriage movable on said frame and including a plurality of rollers adapted to engage said frame to permit linear movement only in a direction parallel to said longitudinal members; and d. means for linking said blast cleaning device to said carriage for movement therewith, and for maintaining said machine in intimate contact with said surface.
Claim 13
Dependent Claim
50 words
The device according to claim 10 wherein said linkage means includes a swing linkage adapted to permit small movements of said blast cleaning device in a direction normal to the direction of carriage movement and actuator means for urging and maintaining the blast cleaning machine in contact with said surface.
References Cited (Backward Citations)
US700481A
Cited
US2098262A
Cited
US2543348A
Cited
US2743353A
Cited
US2813710A
Cited
US3034262A
Cited
US3396423A
Cited
US3396492A
Cited
US3566543A
Cited
US3788010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |