Vent

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Description

FIG. 1 is a top plan view of a vent showing my new design;

FIG. 2 is an elevational view taken from one side thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is an elevational view taken from one end thereof, the opposite end being the same as the end shown;

FIG. 5 is a top plan view of a modified form of the vent shown in FIG. 1;

FIG. 6 is an elevational view taken from one side of FIG. 5, the opposite side being a mirror image of the side shown;

FIG. 7 is a bottom plan view of FIG. 5; and

FIG. 8 is an elevational view taken from one end of FIG. 5, the opposite end being the same as the end shown.

Referenced Cited
U.S. Patent Documents
D221251 July 1971 Haskell et al.
279977 June 1883 Parker
3160987 December 1964 Pinkley
3863553 December 1973 Koontz
3972164 August 3, 1976 Grange
Other references
  • Van Huffel Catalog L 56, Jan. 1953, p. 16, Item 2078/.005, p. 17, Item 2187/.078, p. 28, Item 2469/.035, p. 31, Item 2563/.025. Dahlstrom Manufacturing Corp. Catalog 11, p. 17, Item 105, p. 24, Item 2118, p. 25, Items 2738 & 3145-D, p. 30, Item 225, p. 102, Items 293 & 2708 & page item 2673.
Patent History
Patent number: D250420
Type: Grant
Filed: May 6, 1977
Date of Patent: Nov 28, 1978
Assignee: Diversified Insulation, Inc. (Hamel, MN)
Inventor: Bruce K. Ward (St. Louis Park, MN)
Primary Examiner: James R. Largen
Attorney: Richard O. Bartz
Application Number: 5/794,639
Classifications
Current U.S. Class: D23/163; D25/74
International Classification: D2304;