Scraper to clean the fins of heat exchangers or the like
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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
Foreign Patent Documents
Other references
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 |
667749 | March 1952 | GBX |
- 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
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)