Patent ID: 6085557
Filing Date: 2000-07-11
Classification: B63J,E05B,Y10T

Abstract:
An anti-theft device for marine propellers, comprising:a first section having a first base portion and a first wall portion;a second section having a second base portion and a second wall portion, said first section and said second section fitting together to form an access-preventing cap having a base portion and a surrounding wall extending from said base portion, said surrounding wall having a rim portion distal from said base portion, said rim portion defining a front opening, said front opening having a first diameter, said base portion and said surrounding wall defining a first cavity sized to house a diffuser portion of a marine propeller hub,the diffuser portion being formed at least in part by an expanded portion being larger in diameter than said first diameter such that, when the diffuser portion of the marine propeller hub is housed within said first cavity, said access-preventing cap cannot be pulled off the marine propeller hub without first separating said first section from said second section,said first base portion having a tongue extending therefrom, said tongue having a first through hole, said second base portion having a second through hole extending from an exterior surface of said second base portion, said second through hole being in registry with said first through hole when said first section and said second section are fitted together to form said access-preventing cap;a dowel, said dowel extending through said second through hole and said first through hole to prevent said first section from being separated from said second section, when said first section and said second section are fitted together to form said access-preventing cap and said dowel is positioned to extend through both said second through hole and said first through hole; anda key-operated lock incorporated in said first base portion, said key operated lock being selectively engageable with said dowel,said key-operated lock preventing said dowel from being removed from said second through hole and said first through hole when said key-operated lock engages said dowel, when said dowel is positioned to extend through both said second through hole and said first through hole, and when said first section and said second section are fitted together to form said access-preventing cap.