Brushing – scrubbing – and general cleaning – Implements – Particular handle
Patent
1995-08-17
1999-07-13
Till, Terrence R.
Brushing, scrubbing, and general cleaning
Implements
Particular handle
151591, 15174, 15192, A46B 312, A46B 320
Patent
active
059209437
ABSTRACT:
A paint brush handle has an outer layer of a comfortable, relatively soft elastomeric material that surrounds a rigid core of foamed polyolefin. The handle is made using a co-injection process in which a mold cavity is first coated by an initial partial shot of the elastomeric material and then filled by injecting more elastomeric material and polyolefin material containing a foaming agent simultaneously. The simultaneous shot of these materials is achieved by injecting the materials through a single inlet passage into the mold cavity in which the flows are concentric, with the elastomeric material surrounding the polyolefin material. The ferrule is attached to the handle using nails or other suitable fasteners which penetrate into the rigid inner core.
REFERENCES:
patent: 2417750 (1947-03-01), Hall
patent: 2426315 (1947-08-01), Marick
patent: 2854684 (1958-10-01), Hardman et al.
patent: 2914785 (1959-12-01), Ela
patent: 3172141 (1965-03-01), Arena
patent: 3831218 (1974-08-01), Kaplan
patent: 4263691 (1981-04-01), Parkanseree
patent: 4751762 (1988-06-01), Meimeteas
The Wooster Brush Company
Till Terrence R.
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