US3726481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure jet cleaning device
Assignee: HEIST C CORP US
•
Filing: 1971-01-06
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Granted: 1973-04-10
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Expires: 1991-01-06
Abstract
Abstract A machine for cleaning a surface by means of high pressure jets of liquid comprising a frame for mounting on a vehicle, a manifold on the frame, a plurality of lances in communication with said manifold, a plurality of nozzles in said lances for supplying fan-shaped jets of liquid for impingement on said surface to be cleaned, said nozzles being oriented to cause the jets to be inclined at an acute angle to the direction of motion of said vehicle and being proximate each other so as to clean a swath on said surface as said vehicle traverses said surface, and adjustment means for adjusting the inclination of the lances relative to the vertical and for adjusting the orientation of said nozzles relative to the direction of travel of said vehicle, and a plurality of pump units for supplying high pressure liquid to the manifold. The foregoing machine is used in a system which includes a source of water and a plurality of motor-pump units placed in parallel across the machine and the source for producing a sufficient quantity of water at a sufficiently high pressure for supplying the above described machine.
Inventors
- 👤 W Foster
- 👤 R Wild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:10
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/10; E01H1/101
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
196 words
A machine for removing deposits such as rubber tire marks from a surface such as a runway by means of high pressure jets of liquid comprising a frame, means for mounting said frame on a vehicle, a plurality of nozzles on said frame for providing a plurality of fan-shaped jets of liquid having knife-like cutting edges, means for conducting liquid to said nozzles with said liquid being at a pressure sufficient to cause said jets to remove said deposits from said surface, means mounting said nozzles across said frame to provide a continuous swath extending transversely to the direction of movement of said vehicle, said nozzles having a first orientation which causes said fan-shaped jets to be inclined to the vertical, and said nozzles having a second orientation which causes each fan-shaped jet to be so inclined relative to an adjacent fan-shaped jet so as to cause them to overlap in a direction transversely of the direction of movement of said vehicle to provide said continuous swath without intermingling with each other prior to striking said surface whereby each jet will not lessen the force with which an adjacent jet strikes the surface to be cleaned.
Claim 2
Dependent Claim
196 words
A machine for removing deposits such as rubber tire marks from a surface such as a runway by means of high pressure jets of liquid comprising a frame, means for mounting said frame on a vehicle, a plurality of nozzles on said frame for providing a plurality of fan-shaped jets of liquid having knife-like cutting edges, means for conducting liquid to said nozzles with said liquid being at a pressure sufficient to cause said jets to remove said deposits from said surface, means mounting said nozzles across said frame to provide a continuous swath extending transversely to the direction of movement of said vehicle, said nozzles having a first orientation which causes said fan-shaped jets to be inclined to the vertical, and said nozzles having a second orientation which causes each fan-shaped jet to be so inclined relative to an adjacent fan-shaped jet so as to cause them to overlap in a direction transversely of the direction of movement of said vehicle to provide said continuous swath without intermingling with each other prior to striking said surface whereby each jet will not lessen the force with which an adjacent jet strikes the surface to be cleaned.
Claim 3
Dependent Claim
41 words
A machine for cleaning a surface by means of high pressure jets of liquid as set forth in claim 1 wherein said nozzles are also oriented in first and second rows extending transversely of the direction of movement of said frame.
Claim 4
Dependent Claim
65 words
A machine for cleaning a surface by means of high pressure jets of liquid as set forth in claim 2 wherein said nozzles of said second row are staggered with respect to the nozzles of said first row whereby certain of the jets produced by the nozzles in said second row fall between the jets produced by certain of said nozzles in said first row.
Claim 5
Dependent Claim
18 words
A machine as set forth in claim 1 wherein said first orientation is approximately 20* to the vertical.
Claim 6
Dependent Claim
32 words
A machine as set forth in claim 1 wherein said nozzles are aligned substantially in a row and wherein said second orientation is approximately at 20* to the axis of said row.
Claim 7
Dependent Claim
20 words
A machine as set forth in claim 1 wherein said pressure is approximately at least 4,000 pounds per square inch.
Claim 8
Dependent Claim
22 words
A machine as set forth in claim 1 wherein said liquid is supplied at a volume of approximately 120 gallons per minute.
Claim 9
Dependent Claim
20 words
A machine as set forth in claim 7 wherein said pressure is approximately at least 4,000 pounds per square inch.
Claim 10
Dependent Claim
62 words
A machine as set forth in claim 1 wherein said means for conducting liquid to said nozzles includes first conduit means in communication with a source of liquid, second conduit means in communication with said nozzles, and a swivel joint between said first and second conduit means to permit said frame to be rotated without accompanying rotation of said first conduit means.
Claim 11
Dependent Claim
49 words
A machine for cleaning a surface by means of high pressure jets of liquid as set forth in claim 1 including dump valve means in communication with said nozzles for selectively routing liquid away therefrom so as to terminate flow from said nozzles without terminating flow of said liquid.
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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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |