Patent ID: 6141997
Filing Date: 2000-11-07
Classification: B60R,B60S,E05B,Y10T

Abstract:
A semitrailer antitheft system for use with a trailer landing gear, comprising, in combination:(a) an upper strut member;(b) a moveable lower strut structured and arranged for slidable attachment to said upper strut member;(c) a housing attached adjacent to said upper strut member, said housing having a front surface and a rear surface;(d) a raising means, substantially enclosed within, and rotatable attached to, said housing and fixed in a translationally static relationship with said housing, for raising and lowering said moveable lower strut; and(e) an engagement means for engaging, substantially within said housing, said raising means;(f) wherein said engagement means comprises a movement prevention means for substantially preventing rotational movement of said raising means:(g) wherein said engagement means is structured and arranged for essentially preventing said lower moveable strut from movement with respect to said upper strut member when said raising means is engaged by said engagement means; and(h) wherein said engagement means comprises:(i) a first bar member having a first end and a second end, said first bar member being structured and arranged for translational movement substantially within said housing;(ii) a jamming means, attached to said first bar member, for essentially preventing movement of said raising means;(iii) a blocking means, attached to said housing, for essentially blocking rotational movement of said first bar member; and(iv) a locking means, attached to said first bar member, for essentially preventing said translational movement of said first bar member when said locking means' is attached to said first bar member.