A. B. Dick Co. v. Arlac Dry Stencil Corp.

59 F.2d 782, 1930 U.S. Dist. LEXIS 1770
CourtDistrict Court, W.D. Pennsylvania
DecidedMay 5, 1930
DocketNo. 2359
StatusPublished
Cited by1 cases

This text of 59 F.2d 782 (A. B. Dick Co. v. Arlac Dry Stencil Corp.) is published on Counsel Stack Legal Research, covering District Court, W.D. Pennsylvania primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
A. B. Dick Co. v. Arlac Dry Stencil Corp., 59 F.2d 782, 1930 U.S. Dist. LEXIS 1770 (W.D. Pa. 1930).

Opinion

McVICAR, District Judge.

This suit is' for infringement of patent No. 1,526,982 for improvement in stencil' sheets. The defense is invalidity and non-infringement. The court finds the following facts and conclusions of law:

[783]*783Findings of Fact.

(1) The plaintiff is a corporation of the state of Illinois, having its principal office in the oily of Chicago.

(2) The Arlac Dry Stencil Corporation, defendant, is a corporation of the state of Delaware, having a regular and established place of business in the city of Pittsburgh, Allegheny county, in the Western district of Pennsylvania. The defendant Verne R. Shattuck is a citizen, resident, and inhabitant of the Western district of Pennsylvania.

(3) On April 7, 1922:, Edward W. Hill, an employee of the plaintiff corporation, made application to the Commissioner of Patents of the United States for a patent for improvement in stencil sheets. The invention was assigned to plaintiff, to whom a patent was issued February 17, 192&, No. 1,526,982.

(4) A stencil sheet is a sheet adapted to be .converted into a stencil for multiplying copies with less equipment than by printing, particularly in machines which position the paper and stencil and apply ink, so that it passes through the apertures in the stencil and reaches the paper.

(5) The prior art is stated in the application for the patent in suit as follows:

“Originally stencil-sheets adapted for the reduplication of typewritten matter were produced by coaling an open-texture, porous base with soft wax. With sheets so made, only a limited number of copies could be produced. In addition, the sheets were fragile, easily injured and affected by changes of temperature. To a great extent such sheets were later superseded by so-called ‘indestructible’ stencil-sheets, in which a base of open-texture, porous material was coated with coagulated protein, as for example, gelatin combined with a tempering agent, such as sugar or glycerin, and treated with a suitable coagulant, such as potassium diehromate, formaldehyde, etc. If stencil-sheets of this character, whieh are now in extensive use, are stencilized a substantial period after the coating of the base, they will be too brittle and it is necessary to temporarily soften the coating material by the application of moisture.”

(6) The object of the invention as stated in the application for the patent is:

“The object of the present invention is to produce a stencil-sheet whieh shall improve upon the existing art in divers respects, chiefly, however, in dispensing with the necessity for temporary moistening of ¡lie stoneil-sheet during the steneilizing operation. To attain this end, I have devised a coating or impregnating' material characteristically different from anything which has heretofore been developed and which, when applied to the foundation sheet, results in a stencil-sheet whieh is at all times ready for use by inserting the same in a writing machine and typing thereon.”

(7) The specification in the patent is substantially as follows:

“In carrying out the invention, I employ a base of open-texture, porous material of any suitable character, such, for example, as the Japanese bibulous paper commonly known as ‘Yoshino.’ This I coat or impregnate with a cellulose ester, such as cellulose nitrato or cellulose acetate, by treating the paper with a solution of such cellulose ester in a suitable solvent. The material whieh I prefer to employ and with which excellent results may be obtained is known as ‘pyrox-ylin enamel,’ this being a solution of nitrated cellulose in a suitable solvent, with which has been incorporated a pitment such as zinc oxide. As commercially available at the present time, this enamel has the consistency, approximately, of ordinary molasses. As is well known, the consistency of pyrox-ylin enamel is governed by the relation between the solid constituents (such as cellulose nitrate, zinc oxide etc.) and the solvent employed (such as amylacetate).

“To a given quantity of this pyroxylin enamel I add a suitable proportion (fifty per centum will give good results) of a tempering agent such as an oil, mixing this thoroughly with the enamel and, if desired, adding coloring matter such as a dye or carbon black whieh may have been previously dissolved or suspended in amylacetate. The chief function of the tempering agent is to prevent the pyroxylin enamel from drying too hard, making the coating undesirably brittle. For this purpose I prefer to use castor oil or a similar oil having the power of forming with the cellulose ester and its solvent a homogeneous body. I may also, if desired, add a suitable quantity of a material, Cor example soya bean oil, of such character as to hasten the setting of the coating mixture when applied. The quantum to be used can readily be determined with reference to the particular pyroxylin employed. I prefer to use only enough to aid in the setting of the mixture without making it undesirably moist and sticky.

“I have found it advantageous also to [784]*784add to the mixture a limited proportion, say five to ten per centum, by weight, of some fatty or tallow-like ingredient of either animal or vegetable origin (lard, cottolene, Chinese vegetable tallow, etc.) to serve similarly as a setting agent, but more particularly as a preservative of the proper consistency of the finished coating and to aid also in retaining the composition in the desired state of softness, fluency and displaee-ability.”

(8) The patent contains twenty-two claims of invention. Some of the claims specify oil as a tempering agent, others vegetable oil, others castor oil and others do not specify the ingredient of the tempering agent, such as claim 2, which reads:

“A stencil-sheet adapted for conversion into a steneil by the impact of type and the like thereon, the same comprising a base having a type-impressible coating including a cellulose compound and a tempering agent.”

(9) Cellulose is the chief material composing the walls of plant cells, and is perhaps best exemplified by cotton fiber. Cellulose esters are compounds of cellulose produced by the interaction of an acid with the cellulose; nitrocellulose is a compound of cellulose produced by the action of nitric acid, and acetyl cellulose by acetic acid. Cellulose compounds in general possess a considerable degree of hardness and toughness, and, unlike gelatin, a resistance to water.

(10) Pyroxylin is the name for part of the general class of cellulose nitrates that applies to the lower nitrates, that are apt to be more soluble and more plastic, and less explosive and less dangerous, than the higher nitrates.

(11) In 1920, the plaintiff brought suit against- the Simplieator Corporation and Martin S. Hebert, in the United States District Court- for the Southern District of New York, for the infringement of the patent in suit. See 30 F.(2d) 713. The issue -there, in was the validity and infringement of each of the claims of the patent in suit. On Febr ruary 21, 1930, said court entered its final decree, which reads:

“It is ordered, adjudged and decreed,

“1. That United States Letters Patent No. 1,526,982, for Steneil Sheet, granted February 17, 1925, to the plaintiff, A. B. Dick Company, as assignee of Edward W. Hill, are good and valid in law as to claims 2, 3, 4, 6, 7; 8, 9, 11, 12, 13-, 14, 16, 18, 21 and 22 thereof.

“2. That the plaintiff, A. B.

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Related

Heyer Duplicator Co. v. A. B. Dick Co.
59 F.2d 787 (Seventh Circuit, 1932)

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Bluebook (online)
59 F.2d 782, 1930 U.S. Dist. LEXIS 1770, Counsel Stack Legal Research, https://law.counselstack.com/opinion/a-b-dick-co-v-arlac-dry-stencil-corp-pawd-1930.