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Publication numberUS1781435 A
Publication typeGrant
Publication dateNov 11, 1930
Filing dateJul 6, 1928
Priority dateJul 6, 1928
Publication numberUS 1781435 A, US 1781435A, US-A-1781435, US1781435 A, US1781435A
InventorsCarper Joseph B
Original AssigneeCarper Joseph B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Process for the production of paints
US 1781435 A
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Description  (OCR text may contain errors)

Nov. 11, 1930. J. B. CARPER 1,781,

PROCESS FOR THE PRODUCTION OF PAINTS Filed July 6; 1928 JB.0a/-per I 1 j I I I dm Patented Nov. 11, 1930 UNITED STATES JOSEPH B. CARPER, 0F LOUISVILLE, KEHTUCKY PBOGESS FOR THE PRODUCTION OF PAINTS Application filed July 6, 1928. Serial Il'o. 290,752.

This invention relates to the production of coating compounds and more particularly to a new process for agitating, grinding and mixing powdered asbestos and other fillers with liquefied asphalt or tar to produce a paint or roof coating.

The present methods employed for grinding pigments and coating materials in the proper vehicles are slow and expensive and bitumen roof coatings are now so low in price that manufacturers cannot afford to givethem the slow mill grinding which is given to other and more expensive coatings and paints such as the lead or zinc and oil coating compounds. The present process is such that a bituminous asbestos carrying roof covering or coating may be given as thorough a mixing treatment as is given other and more expensive coatings without the consumption of the same amount of time and creation of the same amount of expense.

A further object of the present invention is to provide a roof coating in which the solid particles are so thoroughly ground and mixed with the vehicle that they will remain in suspension and there will be no settling of the same to the bottom of the container.

The invention will be best understooc from a consideration of the following detailed description taken in connection with the accompanying drawing forming part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawing but may be changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claim.

In the drawing The figure shown illustrates the mechanism employed in carrying out my improved process.

In carrying out the process embodying the present invention, I employ a mixing tank 1 in which the ingredients making up the coating compound are placed, which compound may consist of a mixture of asphalt or tar with powdered asbestos.

A suitable means may be employed for ber 3 carrying a plurality of depending agitator fingers 4, the bar being suspended within the tank upon the lower end of the vertical shaft 5 which may be rotatably driven through the gear connection 6 by any suitable.

power mechanism (not shown).

Associated with the mixing tank 1 is a rotary gear pump 7, the inlet side of which is connected with the lower portion or bottom of the tank by the pipe line 8, which line has a valve 9 interposed therein.

The outlet side of the pump 7 is connected by the return pipe 10 with the upper portion or top of the mixing receptacle 1 as shown, this pipe line having leading therefrom a discharge pipe 11 which is controlled by the valve 12.

In preparing the roof material according to my process, a vehicle and solid ingredients thereof as for example asbestos, are placed in the tank 1 where they are thoroughly agitated by means of the agitators 2. The rotary gear pump 7 is operated at a high speed and the contents of the tank allowed to pass through the valve 9 and feed line 8 into the pump where the asbestos and other material in the bituminous vehicle is thoroughly ground by the teeth of the pump. In addition to this grinding action which is obtained through the use of the pump, the material is maintained in a constant state of agitation and circulation through the pipes 8 and 10.

l/Vhen the mixture has been agitated sufliciently and the solid ingredients thereof ground to the proper consistency the valve 12 of the draw-oil pipe may be opened whereupon the mixture will be forced by the pump 7 through the same to receiving receptacles.

By the use of the pump 7 which, traveling at a high speed thoroughly grinds the solid particles of the mixture and thoroughly agitates the mixture, a finished coating can be produced in a fraction of the time required for the production of a similar coating by the methods at present employed. This means that material saving in labor and expense is effected and it Will be also readily understood that considerable expense will be saved in the production of roofing materials by my method by reason of the fact that Very little and inexpensive equipment is required for carrying out the process. r 1 Having described my invention what I claim is c 7 VIn'an apparatus for thepreparation of a liquid coating composition containing solid particles, a receptacle, an agitator Within the receptacle, havingmeans extending to' the exterior of the receptacle for transmitting motion thereto from a source of power ex-' 'teriorly of the receptacle, a rotary gear pump a pipe line connecting the lower portion of said receptacle With the intake side of said pump, a pipeline connecting the out- 20 let side of the pump With the upper part of the receptacle, and draw-ofi means leading iromsai'd last mentioned pipe line, said gear pump being designed to'grindup said solid particles in. addition to maintaining a circu-' In testimony 'WhereofI hereunto alfix my c signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2581414 *Aug 13, 1948Jan 8, 1952Du PontProcess for dispersing pigments in film-forming materials
US2592170 *Jun 8, 1950Apr 8, 1952Muller FerdinandBrewer's cereal cooker
US2909332 *Nov 5, 1954Oct 20, 1959Morehouse Ind IncVacuum milling and deaerating system
US2953460 *Jul 23, 1959Sep 20, 1960Baker Process CompanyProcess and apparatus for preparing dough
US3143302 *Jun 7, 1961Aug 4, 1964Shell Oil CoConduit with clean-out device
US3191912 *Dec 19, 1961Jun 29, 1965Halliburton CoMixing apparatus for producing oil well formation fracturing compositions
US3416740 *Aug 3, 1965Dec 17, 1968British Titan ProductsProcess and apparatus for milling
US4243636 *Feb 9, 1979Jan 6, 1981Mitsui Petrochemical Industries Ltd.Apparatus for the continuous liquid-phase catalytic oxidation of alkyl-substituted aromatic compounds
US4515482 *Feb 28, 1984May 7, 1985The Upjohn CompanySterile suspension and solution holding and mixing tank
US4857241 *Dec 10, 1987Aug 15, 1989Colgate-Palmolive CompanyApparatus for making post-foaming gels and method
US4903899 *Dec 14, 1988Feb 27, 1990Hydro International LimitedSeparator
US5248416 *Nov 18, 1991Sep 28, 1993Howard Jr Ronnie ESewage treatment system
US5590960 *Mar 20, 1996Jan 7, 1997E. I. Du Pont De Nemours And CompanyOne tank paint makeup process using a recirculation loop with liquid injection
US6039470 *Mar 24, 1997Mar 21, 2000Conwell; Allyn B.Particulate mixing system
US6422737 *Mar 23, 2001Jul 23, 2002Welker Engineering CompanyLiquid sample cylinder with integral mixing pump
US6494608 *Dec 10, 1998Dec 17, 2002Renner Du Pont Tintas Automotives E Industriais S/ASystem for the continuous and automatic production of automotive and other paints capable of handling a plurality of different paints
US7637651 *Jun 13, 2006Dec 29, 2009Rohm And Haas CompanyProcess for making slurries
US8641264 *Nov 10, 2005Feb 4, 2014Kansai Paint Co., Ltd.Paint producing method and paint producing system
EP2583748A2 *Sep 25, 2012Apr 24, 2013Krones AGMixer for drinks containing pulp and fibre
U.S. Classification241/97, 241/98, 241/46.17, 106/282, 366/325.4, 118/506, 241/25, 366/137
International ClassificationB01F5/00, B01F5/10
Cooperative ClassificationB01F5/104
European ClassificationB01F5/10C