Elbow cover for insulated pipework

Description

FIG. 1 is a front elevational view of an elbow cover for insulated pipework showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a cross sectional view taken on line 6--6 of FIG. 4;

FIG. 7 is a cross sectional view taken on line 7--7 of FIG. 4; and

FIG. 8 is a perspective view thereof showing the cover in an open position.

Referenced Cited
U.S. Patent Documents
D264120 April 27, 1982 Karakawa
1261221 April 1918 Dutcher
3153546 October 1964 Dunn
3495629 February 1970 Botsolas et al.
3572395 March 1971 Burns
3960181 June 1, 1976 Baur et al.
4139026 February 13, 1979 Zack
4426108 January 17, 1984 Kesselman
4669509 June 2, 1987 Botsolas
4838318 June 13, 1989 Karakawa
Patent History
Patent number: D312499
Type: Grant
Filed: Feb 23, 1988
Date of Patent: Nov 27, 1990
Assignee: Yamato Kogyo Kabushiki Kaisha (Ibaraki)
Inventor: Kazuo Karakawa (Koga)
Primary Examiner: James R. Largen
Assistant Examiner: Demetrius Reynolds
Law Firm: Oblon, Spivak, McClelland, Maier & Neustadt
Application Number: 7/149,565
Classifications