Anti-theft device for marine propellers

Details Anti-theft device for marine propellers Anti-theft device for marine propellers

1985-12-06

1987-02-24

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Ambient fluid or exhaust gas directed through hub, fairing...

416146R, 416244B, 416245A, 70232, 411910, B63H 120

Patent

active

046454225

ABSTRACT:
An anti-theft device for a marine propeller has a spinnerplaced over the propeller nut which secures the propeller to the propeller shaft, and the spinner is held in place against unauthorized removal by a lock pin projecting from the propeller nut into an annular recess in the spinner, enabling the spinner to spin freely relative to the propeller nut while capturing the spinner against axial movement which would expose the propeller nut for unauthorized wrenching, the spinner including a radially extending access passage for gaining access to the lock pin with an authorized drive member to move the lock pin out of the annular recess for selective release of the spinner from the propeller nut and authorized access to the propeller nut for wrenching.

REFERENCES:
patent: 2351356 (1944-06-01), Meyer
patent: 3732033 (1973-05-01), Macchi
patent: 3792938 (1974-02-01), Wilde
patent: 3957394 (1976-05-01), Chaskin
patent: 3978699 (1976-09-01), Kay'Triniak
patent: 3981165 (1976-09-01), Wersinger
patent: 3981617 (1976-09-01), Milewicz
patent: 4077742 (1978-03-01), Goodwin
patent: 4336698 (1982-06-01), Hurd
patent: 4538962 (1985-09-01), McCain

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