Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Reexamination Certificate
2006-04-18
2006-04-18
Ackun, Jr., Jacob K. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
C081S177400, C081S490000
Reexamination Certificate
active
07028593
ABSTRACT:
Provided is a screwdriver comprising a pivotal removable revolving cylinder containing screwdriver tips a pivot bucket with the revolving cylinder disposed therein, and a flexible limiting member fastened at either cut on the shank of a handle for fastening the handle in its operation or storage position. In a revolving cylinder replacement operation pull the handle rearward to disengage the shank with the revolving cylinder, pull the pivot bucket upward by pivoting until it is disposed externally of a slot in a body, remove a pivot pin for replacing the revolving cylinder, mount the revolving cylinder in the pivot bucket, and pivot the pivot bucket downward to dispose in the slot again.
REFERENCES:
patent: 5740706 (1998-04-01), Tseng
patent: 6134995 (2000-10-01), Shiao
patent: 6138537 (2000-10-01), Cole
patent: 6327942 (2001-12-01), Mariol et al.
patent: 6928908 (2005-08-01), Yu
Lin Shu-Sui
Yu Hong-Chow
A. A. G. Industrial Co. Ltd
Ackun Jr. Jacob K.
Liauh W. Wayne
Yu Hong-Chow
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