Portable sprayer

Details Portable sprayer Portable sprayer

2005-05-11

2008-05-27

Gorman, Darren (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Including supply holder for material

Fluid pressure discharge means

C239S355000, C222S401000, C222S400800, C251S319000, C251S321000

Reexamination Certificate

active

07377455

ABSTRACT:
A portable sprayer comprising a generally cylindrically shaped tube and an air volume chamber, a piston rod inserted in the cylinder, a container for holding a material, a spray nozzle, and a delivery tube inserted in the container and extended to the spray nozzle is contained in a single unit. The spraying operation is activated by applying a pumping action to the piston rod. An air control valve mounted to the sprayer allows for the rapid bleed off of air from the unit. The preferred embodiment of the invention is of a size and weight so that it may easily carried.

REFERENCES:
patent: 689107 (1901-12-01), Mitchell
patent: 2049194 (1936-07-01), Chapin et al.
patent: 2342940 (1944-02-01), Janke
patent: 2996258 (1961-08-01), Commarato
patent: 3779465 (1973-12-01), Jett et al.
patent: 4116382 (1978-09-01), Clerk
patent: 4204645 (1980-05-01), Hopp
patent: 5485857 (1996-01-01), Amundsen
patent: 6155497 (2000-12-01), Hudson et al.

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