Punch and manufacturing method for recessed head fastener

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6786827
APP PUB NO 20040033838A1
SERIAL NO

10437096

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Recessed head fasteners are provided with a configuration by which the force applied by the blades of the driver to the recessed wings is applied at the radially outer regions of the wings. The wings of the fastener recess may be provided with torque pads at the outer regions of the wings adapted to engage the outer portions of the driver blades. The torque pads may be defined by relieved regions on the drive walls of the recess wings. The relieved regions are formed to avoid contact with the driver blades. Stabilizing ribs also may be defined at the radially inward regions of the drive walls. A recess engageable driver may include a plurality of radially extending ribs configured to promote engagement of the ribs with the most radially outward regions of the recess drive walls. The driver and the recess are compatible with each other as well as with otherwise corresponding conventional recesses and drivers that do not incorporate the invention. Also disclosed are punches and methods for making the disclosed fasteners.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PHILLIPS SCREW COMPANYWAKEFIELD, MA20

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hughes, Barry J Gloucester, MA 16 127
Mowins, Michael L Gloucester, MA 5 38

Cited Art Landscape

Patent Info (Count) # Cites Year
 
PHILLIPS SCREW COMPANY (1)
* 5203742 Punch for making such screw heads with slant rib 11 1992
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SAMSUNG ELECTRONICS CO., LTD. (2)
* 7409158 Large-capacity optical router using electric buffer 1 2003
* 2004/0151,171 Large-capacity optical router using electric buffer 3 2003
 
Sheh Fung Screws Co., Ltd. (1)
* 2009/0257,844 Recessed head screw 1 2008
* Cited By Examiner