Boom hoist
Description
FIG. 1 is a top left side perspective view of a "boom hoist" showing our new design;
FIG. 2 is a top right side perspective view thereof, and
FIG. 3 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
| D182152 | February 1958 | Wicke et al. |
| D241839 | October 1976 | Kammeraad |
| 3084808 | April 1963 | Peduzzi et al. |
| 3863890 | February 1975 | Ruffing |
Patent History
Patent number: D268448
Type: Grant
Filed: Nov 5, 1980
Date of Patent: Mar 29, 1983
Assignee: Hazard Controls Inc. (Cherry Hill, NJ)
Inventors: F. Gregory Callahan (Havertown, PA), Richard S. Sabo (Marlton, NJ)
Primary Examiner: A. Hugo Word
Law Firm: Duffield & Lehrer
Application Number: 6/204,307
Type: Grant
Filed: Nov 5, 1980
Date of Patent: Mar 29, 1983
Assignee: Hazard Controls Inc. (Cherry Hill, NJ)
Inventors: F. Gregory Callahan (Havertown, PA), Richard S. Sabo (Marlton, NJ)
Primary Examiner: A. Hugo Word
Law Firm: Duffield & Lehrer
Application Number: 6/204,307
Classifications
