Scraper to clean the fins of heat exchangers or the like

- General Electric
Description

FIG. 1 is a top, front, and side perspective view of a scraper to clean the fins of heat exchangers or the like showing my new design;

FIG. 2 is side elevational view taken along line 2--2 of FIG. 1;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a rear elevational view taken along line 4--4 of FIG. 1.

Referenced Cited
U.S. Patent Documents
D284259 June 17, 1986 Oury
1906657 May 1933 Stowell
2084603 June 1937 True
2633594 April 1953 Robbins
2856622 October 1958 Jacobsen
3530524 September 1970 Clemans
4667362 May 26, 1987 Mattingly
Foreign Patent Documents
667749 March 1952 GBX
Other references
  • American Bicyclist & Motorcylist, Jan. 1957, "Industrial" Handle Bar Grip.
Patent History
Patent number: D321422
Type: Grant
Filed: Nov 2, 1989
Date of Patent: Nov 5, 1991
Assignee: General Electric Company (Louisville, KY)
Inventor: Russell D. Smith (Irvine, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lavone D. Tabor
Attorneys: Radford M. Reams, H. Neil Houser
Application Number: 7/431,012
Classifications
Current U.S. Class: Scraper (D32/46)