Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Reexamination Certificate
2009-05-21
2011-10-18
Shakeri, Hadi (Department: 3727)
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
C081S439000
Reexamination Certificate
active
08037789
ABSTRACT:
A drywall anchor installation device comprising, inter alia, a main driver member configured to engage a Philips head screw top, a plunger member configured to engage a Philips head screw top, and a plunger member guiding mechanism including a compression spring and a guide pin. In operation, the main driver member engages a drywall anchor at the Philips head indentation and the plunger member extends inside the axial bore of the anchor until contacting the interior surface of the axial bore or the closed end of the anchor. Once contact is made with the closed end of the anchor, the compression spring of the plunger guiding mechanism is engaged, stabilizing the anchor as the anchor is driven into the wall. Once the anchor is driven into the wall, the plunger member is used to drive the anchor screw without having to adjust the driving device.
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Gold Glenn E.
Gold & Rizvi P.A.
Rizvi H. John
Shakeri Hadi
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