Component part of a T-piece

- Lindab AB
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Description

FIG. 1 is a perspective view of a component part of a T-piece, showing my new design, as seen obliquely from above;

FIG. 2 is a perspective view of the component part, as seen obliquely from below;

FIG. 3 is an end elevation of the component part applicable to both ends; and,

FIG. 4 is a side elevation of the component part applicable to both sides.

Referenced Cited
U.S. Patent Documents
1484469 February 1924 Brucebrie
1570887 January 1926 Graves
1908821 May 1933 Cornell, Jr.
Other references
  • "Ducts and Fittings", p. 30, Lindab AB, 1987. Ducts and Fittings Catalog, by Lindab AB, Distributed in 1987, p. #2.
Patent History
Patent number: D363115
Type: Grant
Filed: Oct 19, 1993
Date of Patent: Oct 10, 1995
Assignee: Lindab AB (Bastad)
Inventor: Kenneth Lennartsson (Torekov)
Primary Examiner: Lou Zarfas
Assistant Examiner: E. Watterson
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 0/14,338
Classifications
Current U.S. Class: Elbow Or With Flow Direction Change (D23/263)