Horace S. Daley and Lawrence J. Talarico v. Arthur J. Wiltshire

293 F.2d 677, 49 C.C.P.A. 719
CourtCourt of Customs and Patent Appeals
DecidedNovember 17, 1961
DocketPatent Appeal 6687
StatusPublished
Cited by6 cases

This text of 293 F.2d 677 (Horace S. Daley and Lawrence J. Talarico v. Arthur J. Wiltshire) is published on Counsel Stack Legal Research, covering Court of Customs and Patent Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Horace S. Daley and Lawrence J. Talarico v. Arthur J. Wiltshire, 293 F.2d 677, 49 C.C.P.A. 719 (ccpa 1961).

Opinion

RICH, Judge.

This appeal is from the decision of the Board of Patent Interferences awarding *678 priority to Wiltshire on two grounds: (1) that Daley et al. could not make the count in interference and (2) that Daley et al. derived the invention in issue from Wiltshire.

Wiltshire, the junior party, appellee here, was employed by Apex Electrical Manufacturing Company (hereinafter called Apex) to whom the application involved was first assigned, a later assignment being to the White Sewing Machine Company which purchased Apex in 1956. Wiltshire’s application, Ser. No. 362,898, filed June 19, 1953, is entitled “Pressure Vessel and Method of Making the Same.”

Horace S. Daley and Lawrence J. Talarico (hereinafter called “Daley” for short), appellants here, are the senior party by virtue of their application Ser. No. 324,344, filed December 5, 1952, entitled “Spherical Container for Fluid Medium Under Pressure With Winding and Method of Applying the Winding.” It is assigned to Specialties Development Corporation, a subsidiary of Walter Kidde & Co., Inc. (hereinafter referred to as Kidde), the employer of Daley and Talarico.

The single count is directed to a reinforced spherical pressure vessel for storing fluid such as compressed air, under high pressure (3,000 p. s. i. working pressure). Generally speaking it may be used as an accumulator or merely as a storage vessel, and more particularly the record shows that the parties developed their respective vessels for holding compressed air which feeds the combustion chamber in a jet engine starter system for military aircraft. Although the specific devices of the parties are in some ways dissimilar, broadly they have certain elements in common which form the basis for the count.

Each vessel has an air-tight, spherical inner shell reinforced by windings to increase both the strength-to-weight ratio and the resistance to shattering upon impact of a bullet or the like. More specifically, the windings follow a particular pattern which contributes particularly to shatter-proofness. Each vessel has the usual fitting for connection to a conduit and each party begins a portion of the winding process by placing great circle windings 1 adjacent and tangential to the fitting which, for convenience, is called a “pole” and is said to be on the “axis” of the sphere. As the winding process continues, the great circle courses move away from the poles and gradually approach the so-called “equator” of the sphere.

The count reads:

“A vessel for storing fluids under high pressure, said vessel comprising an inner spherical shell, a fitting secured to said inner shell forming a port for entry and discharge of fluid, said vessel including an outer shell formed of .a substantially continuous strand of flexible material wound about the inner shell in a plurality of layers of windings, each winding at least inboard of the fitting substantially following a great circle path and the innermost winding extending from a zone adjacent said fitting to a zone diametrically opposite said fitting and succeeding windings having progressively lesser extent between said zones.”

“Inboard of the fitting” means inward of the flange of the fitting, in a direction toward the equator and away from the poles. It is apparently a negative limitation, when used with “at least,” to exclude those strictly non-great-circle windings which Wiltshire uses to hold his fitting in place and prevent it from blowing out when the vessel is charged. “Lesser extent” means that the plane in which a great circle winding lies makes a larger angle with the axis passing through the poles and as this angle increases the windings lie in a zone which is bounded by a lesser axial distance from the equator. In other words, if the sphere were the earth, the “innermost” layers of windings would be parallel to *679 the meridians, passing adjacent to the north and south poles and covering the entire globe. The intermediate layers of great circle windings would not cover the frigid zones and, finally, the out-most layers would cover only the equatorial and torrid zones.

A brief consideration of the machines for winding the pressure vessels of the parties will make the pattern more apparent. The Wiltshire pressure vessel, as disclosed in his application, has a rubber inner shell much like the ordinary bladder of a basket ball or the like, and a valve. A temporary, low melting point metal alloy, spherical core, which later is melted and poured out, supports the rubber inner shell while it is being wound and the winding begins by rotating the sphere about an axis passing through the fitting. Simultaneously, a traverse arm oscillates from one pole to the other, feeding and guiding strands of glass fibers which have previously been saturated with a polymerizable resin in its liquid phase. The time for one oscillation of the traverse arm is just slightly less than the time during which the sphere makes one complete revolution. The length of the traverse arm stroke determines the extent on either side of the equator that the sphere is covered by windings and, by gradually decreasing the stroke of the arm as layers of winding are being wound, the extent of the surface covered by the windings being applied is gradually decreased. A covering about % inch thick has many great circle windings each lying in a different plane. Since each successive individual winding or convolution overlies the next prior winding, as the winding progresses a visible ridge is formed on the surface of the sphere which spirals from each pole toward the equator due to the progressive shifting of the winding positions.

Daley’s pressure vessel is a relatively heavy-walled welded steel sphere upon which piano wire has been wound. In Daley’s winding machine, the sphere is supported along an axis which passes through a fitting, and a feeding arm or flyer rotates around the sphere, wrapping strands of piano wire in great circles. The winding process begins with turns passing adjacent the fitting. By slowly rotating the sphere around an axis passing through the fitting, a layer of individual windings or convolutions surrounds the exterior of the spherical metallic shell. Then, as winding progresses, the polar axis is gradually tilted with respect to the plane in which the feeding arm rotates, so that the great circle windings gradually approach the equator. As in Wiltshire’s sphere, a spiraling ridge running from adjacent each pole toward the equator necessarily results from the winding process. Except for this ridge, the exterior appearances of the spheres of the parties are quite different because Wiltshire’s resin-impregnated glass fibers form, after curing of the resin, a solid shell of windings whereas in Daley the wire, being stronger and heavier than the Wiltshire glass fibers, is not wound as densely and, as the wires do not become consolidated, the exterior “shell” resembles netting or a sort of thick wire mesh structure having substantial voids between the individual wire strands.

The complexity of this interference is indicated by the size of the printed record which has 984 printed pages, in addition to which there are hundreds of exhibits.

We shall first dispose of the right to make issue. The language of the count was patterned after Wiltshire’s claim 19 and was suggested to both parties by the examiner. Both parties made it.

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Bluebook (online)
293 F.2d 677, 49 C.C.P.A. 719, Counsel Stack Legal Research, https://law.counselstack.com/opinion/horace-s-daley-and-lawrence-j-talarico-v-arthur-j-wiltshire-ccpa-1961.