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US3656691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washer systems for cleaning surfaces
Assignee: Monark Crescent AB
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Filing: 1970-03-20
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Granted: 1972-04-18
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Expires: 1990-03-20
Abstract
Abstract A washer system for cleaning surfaces such as automobile headlights directs jets or shots of liquid from a nozzle against the dirty surface. The nozzle is spring-biased toward the surface to be cleaned, and each shot moves the nozzle by jet reaction from the start position near the surface to a position farther away from the surface along a path such that the sprayed area progressively increases concentrically outwardly. The spring returns the nozzle to the start position between shots.
Inventors
- 👤 Leif Roland Norstrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:49
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/52; B60S1/522; B60S1/56; B60S1/60
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
39 words
A system as claimed in claim 1, and an arm on which said nozzle is mounted for swinging movement about an axis, and means mounting said arm so that said axis is positioned outside the surface to be cleaned.
Claim 2
Dependent Claim
24 words
A system as claimed in claim 2, and spring means urging said arm toward a position in which said nozzle is adjacent said surface.
Claim 3
Dependent Claim
23 words
A system as claimed in claim 3, and set screw means for adjustably positioning the nearest approach of said nozzle to said surface.
Claim 4
Dependent Claim
24 words
A system as claimed in claim 4, and further set screw means for adjustably positioning the farthest position of said nozzle from said surface.
Claim 5
Dependent Claim
17 words
A system as claimed in claim 5, said spring means acting against said further set screw means.
Claim 6
Dependent Claim
43 words
A system as claimed in claim 1, said mounting means comprising an upwardly extending arm that positions said nozzle in front of said surface, and means mounting said arm for vertical swinging movement about a horizontal axis which is disposed below said surface.
Claim 7
Dependent Claim
45 words
A system as claimed in claim 1, said nozzle projecting a circular spray, said mounting means comprising a slender upright arm on which said nozzle is mounted for vertical swinging movement toward and away from said surface under the reaction force of the ejected liquid.
Claim 8
Dependent Claim
19 words
A system as claimed in claim 8, said nozzle directing said spray in a direction transverse to said arm.
References Cited (Backward Citations)
US3127116A
Cited
US3117727A
Cited
US3173613A
Cited
FR1455898A
Cited
FR1463124A
Cited
SE320282B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |