Brushing – scrubbing – and general cleaning – Implements – Mason's trowel or float
Reexamination Certificate
2006-01-19
2010-06-08
Nguyen, Dung Van (Department: 3723)
Brushing, scrubbing, and general cleaning
Implements
Mason's trowel or float
C015S235400
Reexamination Certificate
active
07730575
ABSTRACT:
The invention relates to a structure for a hand trowel handle with adjustable rotational angle on the grasping section. The hand trowel is composed of a blade, a connecting section and a grasping section. The connecting section uses its base to connect with the tongue on the blade. The structure for the grasping section with adjustable rotational angle features mainly in the radial toothed rings at the front end of the grasping section and at the supporting end of the connecting section. When the grasping section is worn on the shaft in the center if the radial toothed ring of the connecting section, the grasping section can be tightened or loosened through the adjustment knob, the spring and the shaft in the accommodating hole. Thus, the rotational angle between the grasping section and the shaft can be adjusted.
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patent: 5467496 (1995-11-01), Jarvis
patent: 5687448 (1997-11-01), Dye, Jr.
patent: 6247204 (2001-06-01), Hamby et al.
patent: 6499178 (2002-12-01), Huang
patent: 7010828 (2006-03-01), Flores et al.
Nguyen Dung Van
Rabin & Berdo P.C.
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