Sill vent for building foundations

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Description

FIG. 1 is a front perspective view of a sill vent for building foundations embodying my new design;

FIG. 2 is a top plan view thereof, the bottom plan view being identical thereto and not shown in the drawings;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is an end elevational view thereof, the end opposite being a mirror image of the end shown.

The cross-hatching in FIGS. 1, 3 and 4 represents screening and is understood to extend throughout the areas represented.

Referenced Cited
U.S. Patent Documents
4676145 June 30, 1987 Allred
4821628 April 18, 1989 Sarazen, Jr. et al.
Other references
  • McKinley Iron Works Adv. in Sweets 1962 Cat., p. 18, Register A, bottom left side of page.
Patent History
Patent number: D353193
Type: Grant
Filed: Dec 22, 1993
Date of Patent: Dec 6, 1994
Inventor: L. Max Porter (Nixa, MO)
Primary Examiner: Lisa P. Lichtenstein
Law Firm: Shook, Hardy & Bacon
Application Number: 0/16,679
Classifications
Current U.S. Class: Vent, Ductwork, Or Element Thereof (D23/393); D25/53