Draft chamber

- Sanyo Electric Co., Ltd.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front view of the draft chamber;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof; and,

FIG. 7 is a perspective view looking from the upper left-side direction of the draft chamber.

The dashed lines immediately adjacent to the claimed edge of the opening in FIGS. 3 and 7 represent the boundaries of the claimed design and do not form any part of the claimed design.

Claims

The ornamental design for a draft chamber, as shown and described.

Referenced Cited
U.S. Patent Documents
3777736 December 1973 Van Der Waaij et al.
D256613 August 26, 1980 Hilker
D277131 January 8, 1985 Shames et al.
D295216 April 12, 1988 Morris et al.
4852471 August 1, 1989 Lansing
4976815 December 11, 1990 Hiratsuka et al.
D328777 August 18, 1992 Thalmann et al.
D360682 July 25, 1995 Gilkison et al.
D402498 December 15, 1998 Howard et al.
6613115 September 2, 2003 Moore
6623538 September 23, 2003 Thakur et al.
6632260 October 14, 2003 Siemers et al.
D587796 March 3, 2009 Reese et al.
Patent History
Patent number: D641861
Type: Grant
Filed: Dec 6, 2010
Date of Patent: Jul 19, 2011
Assignee: Sanyo Electric Co., Ltd. (Moriguchi, Osaka)
Inventors: Yasutoshi Okamoto (Moriguchi), Fumio Yamada (Moriguchi), Akihiro Mochizuki (Moriguchi)
Primary Examiner: David Muller
Attorney: Weingarten, Schurgin, Gagnebin & Lebovici LLP
Application Number: 29/380,469
Classifications
Current U.S. Class: Vent, Ductwork, Or Element Thereof (D23/393)