In re Ams

29 App. D.C. 91, 1907 U.S. App. LEXIS 5432
District of Columbia Court of Appeals·Decided February 5, 1907·No. No. 405·Published·Cited by 1 cases

Opinion

Mr. Jnstice Robb

delivered the opinion of the Court:

This is an- appeal- from concurrent decisions of the Patent Office tribunals refusing to reissue a patent. The original patent, issued November 3, 1896, relates, quoting from the specification, “to a sheet-metal can designed for packing food products, and more particularly to an improved construction of the seam between the can-body and the cover,” and is described in said specification as follows: “The sheet-metal cover is; countersunk or depressed at its center, so as to be provided with an upright neck or shoulder, which is adapted to fit snugly within the opening of the can-body. Around this neck the cover is provided with the laterally extending flange, which should be considerably wider than the flange. After the cover has been pressed into the above-described form, its neck and flange are covered with an air-excluding adhesive body that adheres to the cover and constitutes in effect a packing. This coating consists of a layer of rubber cement, which may be applied to the parts with a brush, and a thin layer of asbestos-pulp, which forms a film on the surface of the cement.

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The rubber in my improved packing forms the air-excluding body proper, while the asbestos forms a coating or skin upon the surface of the same, which greatly increases the tightness of the joint. Thus a packing of superior merit is produced, and, moreover, the resistance offered by the ordinary washers to the crimping operation, and the consequent frequent imperfections of the seam, are entirely avoided.”

The application contained but one claim, which is as follows: “The combination of a sheet-metal can with a flanged and coun[93] tersunk cover, and with an adhesive coating secured to the cover, and consisting of rubber cement and an asbestos film, substantially as and for the purpose specified.”

More than five years after the date of the original, namely, on March 31, 1902, appellant, Max Ams, filed his application for a reissue. Owing to the simplicity of the invention, the exactness with which it is described in the original application, the specific and limited nature of the claim therein, and the long delay attending the filing of this reissue application, we must carefully scrutinize the reasons assigned by the patentee why it should be allowed. The reissue claims are as follows:

“1. A metal can comprising a can-body and cover, and joined by a crimped seam having on one side of said parts at the seam portion a permanently fixed composition coating forming the packing means, substantially as described.
“2. A metal can for containing food products having a can-body and its cover joined by a crimp joint composed of overlapped and tightly closed fianges in combination with a heat-resisting, non-deleterious composition inherently adhesive in application, and fixed to the neck of the can at said joint in a dry coating or layer, and forming a packing between said flanges, substantially as described.
“3. An air and water-tight packing for a joint for a sheet-metal can-body and its cover designed for food products, consisting of an inherent adhesive, heat-resisting, non-deleterious, yielding coating dried on said cover and independent of the can-body, substantially as described.
u4. In a joint, lor a metal can-body and its covet, a feed coating forming a packing for said joint and plastered on one of said parts, said coating consisting of an adherent and packing layer affixed to the article and an outside non-deleterious and heat-resisting layer or film, substantially as described. .
“5. The combination of a sheet-metal can with a flanged and countersunk cover, and with an adhesive coating secured to the cover and consisting of rubber cement and an asbestos film, substantially as and for the purpose specified.
“6. A sheet-metal can designed for packing food products, [94] comprising a can body and a cover, said body and cover connected by a lap joint, in combination with a tight packing for sealing the cover and body independent of the lap joint, said packing consisting of a non-deleterions, heat-resisting, air-excluding, and adhesive plastered compound extending into every portion of the lap joint and between the inner surface of the can-body and the neck of the cover, substantially as described.”

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In re Ams, 29 App. D.C. 91, 1907 U.S. App. LEXIS 5432 (D.C. 1907).

29 App. D.C. 91 (In re Ams) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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