Fastener feeder with fastener size screening

Details Fastener feeder with fastener size screening Fastener feeder with fastener size screening

2008-11-24

2011-12-20

Crawford, Gene O. (Department: 3651)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S433000, C081S435000, C081S426000, C081S452000, C221S018000, C221S168000, C221S165000, C221S162000, C221S180000, C221S242000, C221S141000, C221S158000, C221S159000, C221S172000, C221S278000, C221S068000, C221S264000

Reexamination Certificate

active

08079291

ABSTRACT:
An exemplary fastener feeder includes a pair of guiders, a slot cover and a blocker. The guiders define a sliding slot therebetween. Each guider includes a sloped part and a level part, bodies of the fasteners are capable of being received in the sliding slot, and a head of each fastener is capable of sliding down from the sloped parts and stopping on the level parts. The slot cover defines an opening for providing a path through which a fastener pickup device can pass through and engage with a fastener located on the level parts. The blocker is located below the level parts. When the fastener pickup device moves the fastener head engaged therewith away from the opening and a length of the fastener is greater than a distance between the blocker and the level parts, the fastener is blocked by blocker and disengaged from the fastener pickup device.

REFERENCES:
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patent: 4416172 (1983-11-01), Medinger
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patent: 4748877 (1988-06-01), Watanabe
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patent: 5857587 (1999-01-01), Ota
patent: 5975350 (1999-11-01), Han
patent: 6257394 (2001-07-01), Takahashi et al.
patent: 6431036 (2002-08-01), Obermeier
patent: 7802710 (2010-09-01), Hung
patent: 2003/0075023 (2003-04-01), Robichaux
patent: 2010/0018354 (2010-01-01), Kuboyama
patent: 2776916 (2006-05-01), None

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