Method for coating an object

Assignee: Atlas Copco AB

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Filing: 1979-06-13

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Granted: 1983-12-13

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Expires: 1999-06-13

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Abstract

Abstract A novel method for coating an object with a thixotropic material, comprising application of the material on the object to be coated and exposing the object and thereby the thixotropic material applied thereon to vibrational or repeated impact forces so as to temporarily liquidize the coating material. By the disclosed method it is possible to obtain an improved thixotropic material coverage of an object, particularly as regards narrow, difficult-to-reach areas such as gaps and crevices of closed cavities. A suitable field of use for this method is anti-corrosion treatment of car bodies.

Inventors

👤 Kurt H. Liedberg

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-02 16:38

CPC Classifications

B; B05; B05D; B05D7/00; B05D7/22; B05D3/00; B05D3/12

Claims Analysis

Total Claims: 6

Claim 1

Independent Claim 119 words

A method for coating at least one surface of an object with a liquid coating material having thixotropic properties comprising spraying said coating material on a major portion of said at least one surface to partially coat said at least one surface, applying mechanical vibrations or repeated impact forces to said at least one surface which is partially coated with said coating material to decrease the viscosity of said material coated on said major portion of said at least one surface so that said material flows over the uncoated portions of said at least one surface, and then stopping said application of mechanical vibrations or repeated impact forces to cause said coating material to gel and cease to flow.

Claim 2

Independent Claim 119 words

Claim 3

Dependent Claim 83 words

The method of claim 1 wherein said at least one surface of said object which is being coated comprises the interior walls of a hollow body on which the coating material is applied by spraying through one or more injection openings in said hollow body, and wherein said mechanical vibrations or repeated impact forces are applied to the outside of said hollow body and wherein said hollow body transmits said mechanical vibrations or repeated impact forces to the said at least one surface.

Claim 4

Dependent Claim 25 words

The method of claim 1 or claim 2 wherein said mechanical vibrations or repeated impact forces are applied while said coating material is being applied.

Claim 5

Dependent Claim 31 words

The method of claim 1 or claim 2 wherein said mechanical vibrations or repeated impact forces are applied after said coating material has been applied to said at least one surface.

Claim 6

Dependent Claim 29 words

The method of claim 3 wherein said mechanical vibrations or repeated impact forces are also applied after said coating material has been applied to said at least one surface.

References Cited (Backward Citations)

CA496966A Cited

USRE24187E Cited

US3227575A Cited

US3513016A Cited

US3632409A Cited

DE2411881A1 Cited

US4025664A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1986-12-12	1987-06-13	1987-12-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1990-12-12	1991-06-13	1991-12-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1994-12-12	1995-06-13	1995-12-13	$7700.00	Window Closed / Lapsed

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