Patent ID: 6364688
Filing Date: 2002-04-02
Classification: H01R,Y10S

Abstract:
A torque-limiting retainer screw assembly comprising:a screw formed on a shaft having a portion threaded for engagement with a complementary threaded member said screw further comprising a means for rotating said shaft; a means for engaging said means for rotating said shaft for rotation of shaft in a first direction; a means for preventing axial movement of said means for engaging said means for rotating said shaft and progressively translating said means for engaging said means for rotating said shaft relative to said shaft, progressively reducing engagement therebetween and drivingly disengaging said shaft and said means for engaging to prevent further rotation of said shaft after a predetermined amount of axial movement of said shaft relative to said means for engaging; said means for rotating configured for engaging with said means for rotating said shaft in a second direction, notwithstanding driving disengagement of said means for rotating and said shaft, and whereby said retainer screw assembly may be threaded and tightened into a structure by a predetermined distance, said means for rotating said shaft of said screw is prevented from over tightening said screw and said retainer screw, assembly may be unscrewed from said structure after said means for rotating said shaft is rendered ineffective to further tighten said screw.