Scraper for cleaning boilers and furnaces
Description
FIG. 1 is a top plan view of a scraper for cleaning boilers and furnaces showing my new design;
FIG. 2 is a side elevational view, the opposite side being a mirror image thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof; and
FIG. 5 is a front elevational view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
| D166880 | May 1952 | Ruppe |
| 1480053 | January 1924 | Ericsson |
| 392610 | March 1924 | DE2 |
| 1195463 | November 1959 | FRX |
Patent History
Patent number: D297062
Type: Grant
Filed: Nov 12, 1986
Date of Patent: Aug 2, 1988
Inventor: Richard Miller (Thornwood, NY)
Primary Examiner: Catherine E. Kemper
Attorney: Jonathan B. Schafrann
Application Number: 6/929,652
Type: Grant
Filed: Nov 12, 1986
Date of Patent: Aug 2, 1988
Inventor: Richard Miller (Thornwood, NY)
Primary Examiner: Catherine E. Kemper
Attorney: Jonathan B. Schafrann
Application Number: 6/929,652
Classifications
Current U.S. Class:
With Elongated Handle (D32/49);
D/7137;
D/7151