Fluid sprinkling – spraying – and diffusing – Including supply holder for material – Fluid pressure discharge means
Patent
1998-08-26
2000-05-16
Walczak, David J.
Fluid sprinkling, spraying, and diffusing
Including supply holder for material
Fluid pressure discharge means
239318, 239337, A61M 1102
Patent
active
060624949
ABSTRACT:
A portable drywall texture sprayer includes a generally cylindrical tank filled with fluid drywall material, a tool connected to the tank through a set of hoses or lines, and an air supply connected to the tank. The set of hoses or lines includes a material line and a control line. The material line is connected between the tank and the tool such that there is material flow communication therebetween. The control line is connected between the tank and the tool such that there is air flow communication therebetween. An air tube is mounted within the tank and connected to the control line such that there is air flow communication therebetween. An air duct connects the air tube and the air supply such that there is air flow communication therebetween. The sprayer also includes a control orifice on the tool for controlling the air pressure within the tank. When the control orifice is covered, the air pressure within the tank increases, air is forced through the control line and the tool, and the fluid drywall material is urged through the material line and the tool, resulting in the atomization and spraying of the fluid drywall material onto the work surface. To stop the spraying of the fluid drywall material, the control orifice is uncovered. The sprayer also includes multiple mechanisms for relieving the air pressure within the tank.
REFERENCES:
patent: 1566325 (1925-12-01), Hansen
patent: 2625433 (1953-01-01), Vose
patent: 2886252 (1959-05-01), Ehrensperger
patent: 3236459 (1966-02-01), McRitchie
patent: 3841555 (1974-10-01), Lilja
patent: 4034916 (1977-07-01), Forsberg
patent: 4116382 (1978-09-01), Clerk
patent: 4948054 (1990-08-01), Mills
patent: 5054687 (1991-10-01), Burns et al.
Spraytex, Inc.
Walczak David J.
LandOfFree
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