Ice and snow removal system

Details Ice and snow removal system Ice and snow removal system

2005-02-08

2005-02-08

Dahbour, Fadi H. (Department: 3743)

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

C392S486000, C219S213000, C137S357000, C165S171000

Reexamination Certificate

active

06853804

ABSTRACT:
One or more dispensing conveyances (1) have outlet apertures (2) or conveying and dispensing heated water to surfaces of roofs (3) and other structural surfaces selectively when ice and snow is being accumulated or has accumulated thereon. The water is heated with an electric-resistance (7, 10) or optionally with a fuel-flame heater (8, 11), which can be a tank heater or a tankless geyser water heater. Electric-resistance members can be positioned inside of heat-resistant tubular conveyances proximate the outlet apertures. A programmable control unit (18) can be included for programmable heat, flow rate and flow time.

REFERENCES:
patent: 4725713 (1988-02-01), Lehrke
patent: 4880051 (1989-11-01), Ohashi
patent: 5591365 (1997-01-01), Shields
patent: 5703998 (1997-12-01), Eckman
patent: 5836344 (1998-11-01), Hovi, Sr.
patent: 5930457 (1999-07-01), Tourangeau
patent: 6166352 (2000-12-01), Turton
patent: 6180929 (2001-01-01), Pearce
patent: 6561138 (2003-05-01), Kobayashi et al.

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