Dual heater system for spray dispenser

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United States of America Patent

PATENT NO 9849475
SERIAL NO

14650758

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A mobile spray dispenser comprises a fluid circulation system and a heating unit. The fluid circulation system has a motorized pump capable of circulating fluid from a fluid reservoir in a high-pressure spray mode and a low-pressure recirculation mode, and of providing the fluid to a sprayer. The motorized pump draws lower power in the low-pressure recirculation mode than in the high-pressure spray mode. The heating unit is disposed within the fluid circulation system to heat the fluid to a target temperature, and comprises a primary heater and a boost heater. The primary heater is configured to be active during both the high-pressure spray mode and the low-pressure recirculation mode. The boost heater is in fluid series with the primary heater, and is configured to be active only during the low-pressure recirculation mode.

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Patent Owner(s)

Patent OwnerAddress
GRACO MINNESOTA INC88TH 11TH AVENUE NE MINNEAPOLIS MN 55413

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colby, Bryan K Columbia Heights, US 2 1
Pellin, Christopher J Burnsville, US 21 83
Roden, Joshua D Lake Elmo, US 7 10
Velgersdyk, Jeffrey N Minnetonka, US 13 53

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