Screw and driver therefor

Details Screw and driver therefor Screw and driver therefor

2006-10-31

2006-10-31

Wilson, Lee D. (Department: 3723)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Externally threaded fastener element, e.g., bolt, screw, etc.

Head driving structure

C411S404000, C411S405000, C411S408000, C081S460000

Reexamination Certificate

active

07128513

ABSTRACT:
A screw (10) has a threaded shank (12) and a head (14). The head has a recess (18) that comprises three lobes (18a, b, c). Each lobe is separated by a curved drive flange (20a, b, c). A driver (100) has a drive tip (114) that fits the recess of the screw.

REFERENCES:
patent: 3363500 (1968-01-01), Simko
patent: 5279190 (1994-01-01), Goss et al.
patent: 398 231 (1994-10-01), None
patent: 299 02 677 (1999-02-01), None
patent: 2 585 609 (1987-02-01), None
patent: 1 491 515 (1977-11-01), None
patent: 438814 (1975-01-01), None
patent: WO 00/71301 (2000-11-01), None
Copy of Search Report for British Priority Appl. No. 0215376.5 dated Sep. 25, 2002.
Copy of International Search Report for International Appl. No. PCT/GB03/02740 completed Sep 8, 2003.

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