40 App. D.C. 510 | D.C. Cir. | 1913
delivered the opinion of the Court:
This is an appeal from a decision of the Commissioner of Patents refusing an application for the reissue of a patent.
The proceeding has a confusing history on account of several preceding reissues and applications and interferences growing out of the same. The subject-matter of the invention is a fluid pressure turbine.
Hugh Francis Fullagar was granted a patent for such a turbine on an application filed April 18, 1901, for which an application for reissue was made also. Another application was filed by him September 16, 1901, on which a patent having sixteen claims (No. 746,061) was issued December 8, 1903. The present case involves the reissue of this patent.
One Emmett filed an application for a fluid pressure turbine, February 24, 1902. May 12, 1903, interference was declared between Emmett’s application and that of Fullagar filed September 16, 1901, as aforesaid. The issue was: “As an article of manufacture, a cover section for the ends of turbine vanes or buckets, comprising a sheet or strip of metal having notches or slots at the ends and two or more openings between the ends, the said openings having parallel sides and covered ends.” The interference was dissolved by the Primary Examiner on the ground that Fullagar’s application did not contain a foundation for the claim. He suggested that Fullagar amend by canceling the word “section,” and that Emmett substitute “section of a cover,” for “cover section.” The application of Fullagar disclosed a pai’t referred to as a baffler, extending around the blades affixed to the disks and operating as a cover therefor; claims 7 to 15, inclusive, of his patent as issued, refer to this cover as a “baffler” in general terms. Fullagar accepted this decision, and amended the same, which then became claim 16 of his patent that was issued December 8, 1903. Claim 16 reads as follows: “As an article of manufacture, a baffler for the ends of turbine blades or buckets, comprising a sheet or strip of metal having notches or slots at the ends and two or more openings between the ends, the said openings having parallel sides and curved ends.” Em
The claims that were rejected and are appealed are the following :
31. In a turbine, the combination of a plurality of vanes, a sectional covering for the ends of the vanes, and means formed integral with the vanes for securing the sections in place.
32. In a turbine, the combination of a plurality of vanes, a
33. As an article of manufacture, a turbine element comprising a body portion having a plurality of vanes or buckets radiating from a common center, tenons formed integral therewith,, and a jointed cover which is secured in place hy the tenons.
3d. A turbine comprising a plurality of vanes or buckets, in-combination with a detachable baffling ring forming a cover containing openings which correspond in shape to the end portions of the vanes or buckets.
35. In a turbine, the combination of vanes or buckets having-curved front and rear faces, tenons formed in the buckets having two fiat surfaces and two surfaces which partake of the-curvature of the buckets, and a cover having openings therein which register with and correspond in shape to the tenons.
36. A turbine provided with a plurality of vanes or buckets having tenons on their free ends, and a covering for the ends, of such vanes or buckets having openings registering with and fitting the tenons, said openings having parallel sides and curved ends.
31. In a turbine, the combination of a carrier, a ring of blades-secured thereto at one end, said blades being ciit away at their opposite ends to form tenons, and a baffling ring forming a cover for the ends of the blades, said baffling ring being provided with openings corresponding in shape and size to the tenons on the-blades.
Claim 16 of the patent covers a baffler having notches or slots at the ends; and this claim, it will be remembered, was held, in the interference case, not to be within the disclosure of the application, because, while the openings therein were described,, there were no notches or slots in the ends of the baffler. The-aforesaid claims in the last reissue application were not rejected for this reason, but because the showing of inadvertence, accident, and mistake in the claims of the patent was not sufficient, and further because of the delay in applying for the reissue.
It is of advantage to applicants in that it provides a ready, speedy, and inexpensive way to make a prima facie case, which, when not inconsistent with the record of proceedings in the Office in the matter of the original patent, may be accepted as sufficient.
He further undertakes to account for his delay of over four years by the statement that his patent was, within a few weeks after its grant,—December 8, 1903,-—-placed in interference which had not been finally decided until November 13, 1906; that under the rules of the Office he could not apply for reissue-pending said interference; and that it was made as soon thereafter as possible. Further stating in detail that he was the first inventor, and the facts supporting the' statement, he concludes as follows: “That his failure to include the claims in his original application, or to immediately apply for a reissue thereof, was due wholly to his mistake as to the facts surrounding Eateau’s alleged invention, and to the fact that it was impossible for him earlier to make this application because of the pendency of the interference above referred to.”
The fact that the claims of the original patent did not cover the specific construction pf the baffler or covering should have been apparent upon ordinary inspection; and the most reasonable inference is that the omission was due, as indicated in his first affidavit, to his belief that the cover section had been invented and put in practice by Bateau.
It did not require the decision of the Commissioner made in the interference with Emmett that Fullagar was not entitled to the notched end cover section, to put the latter upon notice of the omission to claim the specific construction of his own cover or baffler.
His failure to prosecute inquiries into the dates and details of Bateau’s invention and construction may be attributed to the fact that his patent issued December 8, 1903, had been assigned to one Tweedy on the 2éth of the same month. Tweedy assigned to the Allis-Chalmers Company, of New Jersey and Milwaukee, on June 13, 1905, and on its behalf, and under its direction, the subsequent proceedings have been taken.
In this view it is unnecessary to consider whether the delay in applying for reissue is excusable upon other grounds relied on. The decision is affirmed; and this decision will be certified to the Commissioner of Patents. Affirmed.