King v. Anderson

90 F. 500, 1898 U.S. App. LEXIS 2505
CourtU.S. Circuit Court for the District of Southern New York
DecidedDecember 5, 1898
StatusPublished
Cited by12 cases

This text of 90 F. 500 (King v. Anderson) is published on Counsel Stack Legal Research, covering U.S. Circuit Court for the District of Southern New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
King v. Anderson, 90 F. 500, 1898 U.S. App. LEXIS 2505 (circtsdny 1898).

Opinion

OOXE, District Judge.

TMs is an equity suit for the infringement of letrera patent, No. 897,296, granted to George B. King, February 5, 1889, for an improvement in compounds to restrain the setting of plaster. The patent is now owned by complainants. The specification points out that it is very desirable to restrain the natural tendency of plaster of Paris and similar materials to set too quickly. To accomplish this result the patentee grinds dry hydrated lime to a powder and mixes it with the restraining substance — preferably glue — dissolved In water, thus forming a pasty mass. For ordinary purposes four pounds of glue may be dissolved in a pailful of water, but more or less', of the restraining material may be used according to the desire to make ih« product strong or weak. The pasty mass is dried and becomes a dry cake or crust-like substance, which, on being ground, pro-ducats the powdered “restrainer” ready for use. It is used by being added to the plaster or like material in any desired quantity. The patent contains two claims which are as follows:

“(1) The above-described composition of mailer, composed, essentially, of animal gelatinous or vegetable glutinous matter and hydrated lime, substantially as set forth. (2) The above-described composition of matter, composed, essentially, of animal gelatinous or vegetable glutinous matter and hydrated lime combined and reduced to a finely divided condition, substantially as set forth.”

In brief, the claims cover the dry product obtained by mixing pulverized hydrated lime with dissolved glue. The first claim covers the product in any form, the second when reduced to a powder.

The defenses are anticipation, lack of patentable novelty and failure to prove infringement.

It is asserted (hat, prior to the patent, walls covered with plaster, con i posed of calcined gypsum and water, would “set” and harden with in a few minutes after the water was added, thus preventing further and necessary manipulation by the mason. The Inconvenience of this quick setting action of the plaster had long been recognized and for many years the attention of those skilled in the art had been directed to the discovery of some means to prevent it. It will avoid confusion ii it be constantly borne in mind that the claims do not cover a process but a product consisting of a dry crust-like or powdered compound capable of being mixed with powdered plaster of Paris, also in a dry state, so that the plaster can be used from the “scratch” coat to the finishing coat of walls and ceilings. Was this product found in the prior art? A statement of what was known before may be summarized as follows:

First. The use of glue as a restrainer was familiar to masons and had been so used in various combinations. “Lime putty,” made of slaked lime and water, was formed in a ring on the mortar board. Into this ring water was poured and also a small quantity of strong glue solution forming a miniature pond. The plaster of Paris was then added by being gradually stirred into the water of the pond, until all the ingredients, including the lime putty, became a plastic mass ready for use. This method of restraining the rapid setting of plaster by means of hydrated lime and glue thus combined was used long prior to the patent and is successfully used at the present time.

[502]*502Second. In,April, 1883, a patent was granted to Joel H. Sharpless for a “lime-wash for coating buildings.” The object of the patentee was to provide a cheap wash of any desired color for buildings and fences, one that is ready for use by adding a small quantity of water and one that will not scale or rub off. The claim is for “a plastic composition, for lime-washes consisting of pulverized lime and having mixed therewith glue and coloring matter.” This compound is preserved in a pasty condition by being hermetically sealed in cans. When used it is taken from the cans and converted into a paint or wash by the addition of water. “This solution of glue,” says the patent, “acts as a binder and causes the wash to adhere firmly to the building; while at the same time it imparts a slight gloss to the wash and prevents the same from scaling or rubbing off.” In short, the patentee had in view an improved whitewash.

Third. Two years after the Rharpless patent. April, 1885, a patent was granted to George L. Gregory for a plaster compound to be used for “brown-coat” work. The patentee had in mind several existing disadvantages which his compound was intended to cure, among them “too rapid setting.” He says,

“To overcome these disadvantages I add lime and hair to the ground and calcined gypsum, and to retard the setting of the compound I use a smaller amount of common glue * * * than has "been found necessary in other plaster compounds in which gypsum * * * is an ingredient.”

The lime and glue are placed in a box and reduced, by water being added, to the consistency of sweet milk. The wet and washed hair is then added and thoroughly mixed with liquid glue and lime. Next sand is placed in a box, the desired proportion of ground and calcined gypsum is added and the two are mixed in a dry condition. The lime-glue-hair liquid is then added with water sufficient to make the compound of the consistency of plastering mortar. - The lime is used to facilitate an even mixing and make a compound on which a finishing coat can easily be put. The claims are two, covering the process and the product. The latter is described as “a partially-liquid compound for a foundation coat of plastering.”

Fourth. In August, 1887, a patent was granted to George R. King, the patentee of the patent in suit, for a compound to restrain the setting of plaster. Here was the genesis of the dry restrainer. The specification describes a process very similar to' that of the patent in suit. It says,

“I take any stone or stone-like material — such as marble, chalk, plaster, or the like (preferably white marble) — and I powder it so that it will pass through, say, a No. 16 bolting cloth.”

The stone powder is mixed with glue water to form a pasty mass which is dried, the result being a comparatively hard stone-like mass which is subsequently reduced to powder and produces the restrainer ready for use. The patent contains four claims, the first three covering the process and the last covering the product. The fourth claim is as follows:

“As a new article of manufacture, a restrainer, substantially as herein described, consisting of glue and ground stone, combined in the manner set forth.”

[503]*503These are substantially all of the references relied on to invalidate ihe complainants’ patent.

It will be noted at the outset that King ivas the first to produce a res trainer in the form of^a dry powder to be mixed with dry plaster of Paris. He first evolved the idea in the 1887 patent and afterwards improved and perfected it in the patent at bar. Prior to this the restrainer had been in a liquid or pasty form. It is clear that Sharpless in producing his improved whitewash was working on different lines and intended to accomplish entirely different results. He used glue not as a restrainer but as a binder and to add a gloss to his paint. He was not dealing with plaster and was not vexed with its propensity to set too quickly. His hermetically sealed paste was never used as a retarder and it is by no means clear that it eonld be so used with any hope of praciical success.

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Cite This Page — Counsel Stack

Bluebook (online)
90 F. 500, 1898 U.S. App. LEXIS 2505, Counsel Stack Legal Research, https://law.counselstack.com/opinion/king-v-anderson-circtsdny-1898.