Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1993-04-13
1994-08-16
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Machine
221220, B25B 2306
Patent
active
053376366
ABSTRACT:
An automatic screw feeder to be coupled to a conventional electric screw driver so that a plurality of screws may be successively and automatically grasped and relocated from a screw supply to the screw driver bit. The screw feeder includes a swing arm assembly that is rotatable between a screw feeding position, at which the screws are removed from the supply, to a screw installing position, at which the screws are driven into a flat surface, or the like. The swing arm assembly includes a pair of opposing swing arms and a rotatable cam therebetween to control the separation and closing of the swing arms and the grasping and removing of the screws from the supply. The screws are carried on a spirally wound bandolier that is loaded within and removable from a storage drum.
REFERENCES:
patent: 3930297 (1976-01-01), Potucek et al.
patent: 4014225 (1977-03-01), Lejdegard et al.
patent: 4146071 (1979-03-01), Mueller
patent: 4517863 (1985-05-01), Ishikawa
patent: 4602537 (1986-07-01), Dixon
patent: 4667545 (1987-05-01), Gould et al.
patent: 5027679 (1991-07-01), Kawashima et al.
patent: 5083483 (1992-01-01), Takagi
patent: 5239900 (1993-08-01), Macris
Quick Drive Fastening Systems, Model QD 3301 advertising sheet (undated).
Duo-Fast Self-Feeding Screwdriver, Models TD-162 and TD-16251 advertising sheet (Mar. 1988).
Rocker Auto/Screw Converter advertising sheet (1992).
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