Folding hub assembly for propeller blades
Description
FIG. 1 is a front elevational view of a folding hub assembly for propeller blades showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a side elevational view thereof, the opposite side view being a mirror image of that shown;
FIG. 4 is an end elevational view thereof, the opposite end view being a mirror image of that shown;
FIG. 5 is a front perspective view thereof; and
FIG. 6 is a front perspective view thereof showing the propeller shaft attachment.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D171582 | March 1954 | Conrad |
D203780 | February 1966 | Beck |
3715171 | February 1973 | Kettner |
4768927 | September 6, 1988 | Munk |
407547 | October 1944 | ITX |
Patent History
Patent number: D307738
Type: Grant
Filed: Jun 1, 1988
Date of Patent: May 8, 1990
Inventor: Thomas C. Kerr (Philadelphia, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Steele, Gould & Fried
Application Number: 7/201,093
Type: Grant
Filed: Jun 1, 1988
Date of Patent: May 8, 1990
Inventor: Thomas C. Kerr (Philadelphia, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Steele, Gould & Fried
Application Number: 7/201,093
Classifications
Current U.S. Class:
Propeller (D12/214)