Chemical medium filter cartridge

- Pressure Systems, Inc.
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Description

FIG. 1 is a side elevation view of a chemical medium filter cartridge showing my new design;

FIG. 2 is a bottom plan view thereof; and

FIG. 3 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
2865138 December 1958 Eidman et al.
Foreign Patent Documents
947518 March 1971 DEX
216888 October 1985 JPX
Other references
  • Penfield Manufacturing Co. Inc. Catalogue, From Connecticut Industry p. 1, left middle side of page--T-20 CanisterA.
Patent History
Patent number: D323706
Type: Grant
Filed: Sep 23, 1988
Date of Patent: Feb 4, 1992
Assignee: Pressure Systems, Inc. (Pleasant Garden, NC)
Inventor: John M. Sexton (Pleasant Garden, NC)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorneys: Glenn B. Foster, Walter L. Beavers
Application Number: 7/248,029
Classifications
Current U.S. Class: Filter (D23/365)