Application of Young, Patent Appeal No. 8058.

• Decision Date: 05 December 1968
• Docket Number: Patent Appeal No. 8058.
• Citation: 159 USPQ 725,403 F.2d 754
• Parties: Application of Ralph L. YOUNG and Kingsley E. Humbert, Jr.
• Court: U.S. Court of Customs and Patent Appeals (CCPA)

159 USPQ 725, 403 F.2d 754 (1968)

Application of Ralph L. YOUNG and Kingsley E. Humbert, Jr.

Patent Appeal No. 8058.

United States Court of Customs and Patent Appeals.

December 5, 1968.

Ralph L. Young, pro se, James W. Dent, Donald J. Rich, Washington, D. C., for appellants.

Joseph Schimmel, Washington, D. C. (Fred W. Sherling, Washington, D. C., of counsel) for the Commissioner of Patents.

Before WORLEY, Chief Judge and RICH, SMITH, ALMOND, and BALDWIN, Judges.

BALDWIN, Judge.

This appeal is from the decision of the Board of Appeals,¹ affirming the examiner's rejection of claims 14 and 16-18 in appellants' application² for "Filters" as unpatentable under 35 U.S.C. § 103³ over Vokes⁴ combined with Pumps.⁵

THE INVENTION

Appellants' invention relates to filters for fluids, such as air, and methods of their construction. The particular structural embodiment involved in the instant appeal is illustrated in Figure 8:

This filter unit has a pleated core of filter paper 64 interposed between top and bottom filter paper walls 62 and 63. The V-shaped accordion pleats have alternate edges respectively bonded to sheets 62 and 63 by glue or other means, thereby forming a plurality of V-shaped cells 67. In operation, a fluid to be treated is passed through openings 68 in sheet 62 into a top V-shaped cell 67, through filter paper 64, into a bottom V-shaped cell 67, and out through openings 69 in sheet 63. The entire filter unit is disposed in a housing which is not shown in the figure reproduced above.

One claim to a filter unit and two claims to a method of manufacture thereof having been allowed by the board, the claims on appeal here are directed to the method of making the filter unit. The appealed claims read:

14. The method of making a filter comprising providing a pair of separate flat end wall portions, providing holes in each of said end wall portions, providing a core section of preformed configuration defining a plurality of separate chambers with the core section having opposite edge portions, placing said core section between said end wall portions and adhering the opposite edge portions to the end wall portions with holes in one of said end wall portions being in communication with certain ones of said chambers, and the holes in the other end wall portion being in communication with other of said chambers, and placing the filter within a housing having an aligned central inlet and outlet opening.

16. The method of making a filter comprising providing a pair of separate end wall portions, providing holes in each of said end wall portions, providing a continuous integral one-piece sheet of filter paper material which is fluid pervious, forming pleats in said sheet of filter paper material, placing said sheet of filter paper material between said end wall portions so as to define a plurality of separate parallel cells disposed adjacent one another, and with the holes in one end wall portion in communication with alternate ones of the cells and the holes in the other end wall portion being in communication with intervening alternate cells.

17. The method of making a filter comprising providing a pair of separate flat end walls, providing holes in each of said flat end walls, providing a continuous integral one-piece sheet of filter paper material which is fluid pervious, repeatedly folding said sheet of filter paper material to provide accordion pleating therein, said accordion pleating including edges on each pleat, placing said sheet of filter paper material between said flat end walls with the pleat edges in contact with the end walls to define a plurality of separate parallel chambers, and securing said sheet of filter paper material and said end walls in operative position with the holes in one end wall in communication with alternate ones of said chambers and the holes in the other end wall in communication with intervening alternate chambers.

18. The method of making a filter comprising providing a pair of separate flat end wall portions comprising sheets of filter paper material and having flat inner faces, providing holes in each of said end wall portions, providing a continuous integral one-piece sheet of filter paper material which is fluid pervious, folding said sheet of filter paper material to provide a plurality of V-shaped pleats therein including edges which are substantially straight and disposed in spaced parallel relationship to one another, placing said pleated sheet of filter paper material between said end wall portions with the first plurality of pleat edges in contact with the flat inner surface of one of said end wall portions and the remaining plurality of pleat edges in contact with the flat inner surface of the other end wall portions, to define a plurality of separate parallel cells, and with

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