Caulk dispensing device with sure-grips

Details Caulk dispensing device with sure-grips Caulk dispensing device with sure-grips

2008-07-15

2008-07-15

Ngo, Lien T (Department: 3754)

Dispensing

With discharge assistant

Container with follower

C016S430000

Reexamination Certificate

active

07398899

ABSTRACT:
A pair of sure-grip inserts formed as molded rubber sheathes for use in conjunction with a caulking gun having a downwardly protruding trigger that is retracted by hand to dispense caulk, and a downwardly protruding stationary handle to provide a hand grip for retracting the trigger. The trigger insert formed as an open-ended molded rubber sheath with a particular contoured shape and an internal channel conforming to the trigger for slidable insertion thereon. The handle insert is likewise formed as an open-ended molded rubber sheath conforming to the handle for slidable insertion thereon. The inserts are molded per a two-color double-injection-molding process to provide an aesthetically striking two-color appearance, and they are molded with a particular contoured design that conforms to the hand, thereby improving comfort during hard, extended use. The contour plus the use of soft-durometer thermoplastic rubber gives a high-coefficient of friction for a vastly improved grip under all (even wet) conditions.

REFERENCES:
patent: 2520808 (1950-08-01), Miller
patent: 4875386 (1989-10-01), Dickerson
patent: 5253557 (1993-10-01), Dolak
patent: 5511445 (1996-04-01), Hildebrandt
patent: 5579848 (1996-12-01), Hsu
patent: D393194 (1998-04-01), Hogue et al.
patent: 6155354 (2000-12-01), Pusateri et al.
patent: 6270134 (2001-08-01), Lin
patent: 6454138 (2002-09-01), Greenhill et al.
patent: D491037 (2004-06-01), Chen
patent: D520820 (2006-05-01), Chang et al.

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