Patent US3807634A successfully refreshed from Google Patents.
US3807634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road coating device
Assignee: Individual
•
Filing: 1972-09-29
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Granted: 1974-04-30
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Expires: 1992-09-29
Abstract
Abstract Device for depositing liquid synthetic coatings on road surfaces, which device is fixed to a vehicle via at least one feed pipe connected with at least one mixer and a plurality of containers for the individual components of the synthetic material, means being provided for operating, controlling and metering the synthetic material from the containers, the device comprising a hollow spray arm for discharge of the material, which arm has at least one slit, open at the bottom and of constant width extending transversely to the direction of movement of the vehicle, whose length roughly corresponds to the width of synthetic coating strip required and by means of whose variable spread tranversely to the direction of movement of the vehicle, the coating width is variable; and in that the spray arm is surrounded on all sides by a protective hood which is open at the bottom and whose lower edge maintains a constant space above the road surface.
Inventors
- 👤 Juergen Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:44
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/45; E01C19/12; E01C19/16
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
159 words
Device for depositing liquid synthetic coatings on road surfaces, which device is fixed to a vehicle via at least one feed pipe connected with at least one mixer and a plurality of containers for the individual components of the synthetic material, means being provided for operating, controlling and metering the synthetic material from the containers, the device comprising a hollow spray arm for discharge of the material, which arm has at least one slit, open at the bottom and of constant width extending transversely to the direction of movement of the vehicle, whose length roughly corresponds to the width of the synthetic coating strip required and by means of whose variable spread transversely to the direction of movement of the vehicle, the coating width is variable; and in that the spray arm is surrounded on all sides by a protective hood which is open at the bottom and whose lower edge maintains a constant space above the road surface.
Claim 2
Dependent Claim
159 words
Device for depositing liquid synthetic coatings on road surfaces, which device is fixed to a vehicle via at least one feed pipe connected with at least one mixer and a plurality of containers for the individual components of the synthetic material, means being provided for operating, controlling and metering the synthetic material from the containers, the device comprising a hollow spray arm for discharge of the material, which arm has at least one slit, open at the bottom and of constant width extending transversely to the direction of movement of the vehicle, whose length roughly corresponds to the width of the synthetic coating strip required and by means of whose variable spread transversely to the direction of movement of the vehicle, the coating width is variable; and in that the spray arm is surrounded on all sides by a protective hood which is open at the bottom and whose lower edge maintains a constant space above the road surface.
Claim 3
Dependent Claim
14 words
Device according to claim 1, in which the protective hood has an inspection window.
Claim 4
Dependent Claim
15 words
Device according to claim 1, in which the protective hood is made of acrylic glass.
Claim 5
Dependent Claim
40 words
Device according to claim 1 in which the protective hood is arranged for vertical movement in at least one vertically extending guide on the spraying arm and supported by at least two swivel runners which run along the road surface.
Claim 6
Dependent Claim
33 words
Device according to claim 1 in which the forward edge of the protective hood has attached to it, extending along its whole width a flexible drag skirting which rests on the road surface.
Claim 7
Dependent Claim
15 words
Device according to claim 5, characterised in that the drag skirting is made of rubber.
Claim 8
Dependent Claim
24 words
Device according to claim 1, characterised in that the length of the slit in the spraying arm is variable by at least one slide.
Claim 9
Dependent Claim
23 words
Device according to claim 7, in which for matching the output with the slit widths each slide is coupled with a control device.
Claim 10
Dependent Claim
42 words
Device according to claim 1 in which the relative width in relation to the direction of travel of the spray film being discharged from the slit is adjustable relative the vehicle axle by means of a swivel device for the spraying arm.
Claim 11
Dependent Claim
44 words
Device according to claim 9 in which means are provided to control discharge from the slit in relation to the angular position of the spraying arm relative the vehicle axis so that the thickness of the coating deposited on the road surface remains constant.
Claim 12
Dependent Claim
44 words
Device according to claim 1 in which the control device for the spraying arm is controlled by a finely calibrated speed sensing device, which is driven by a separate measuring wheel, arranged near the spraying arm, and which will run along the road surface.
Claim 13
Dependent Claim
49 words
Device according to claim 1 in which there is inside the hollow spraying arm a predistribution chamber partly separated from the inner chamber adjacent to the slit by means of an essentially horizontal extending separating wall, into which chamber the feed pipe is introduced at at least one point.
Claim 14
Dependent Claim
23 words
Device according to claim 1 in which the width of the slit is variable while maintaining the parallel arrangement of the slit limits.
Claim 15
Dependent Claim
18 words
Device according to claim 13 in which the slit width is variable between 0 and approximately 2 mm.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |