Instantaneous steam boiler

Details Instantaneous steam boiler Instantaneous steam boiler

2007-12-12

2010-10-12

Campbell, Thor S (Department: 3742)

Electric resistance heating devices

Heating devices

Tank or container type liquid heater

C392S404000, C392S397000, C392S465000

Reexamination Certificate

active

07813628

ABSTRACT:
The present invention relates to an instantaneous steam boiler generating steam in a steam cleaner, a steam-vacuum cleaner, a steam iron, etc. The instantaneous steam boiler includes a U-shaped heater and a separate flow tube arranged in parallel and contact with said heater. The flow tube may be arranged orthogonally or at a 180 degree opposite direction and may include a circular or square-shaped end with rounded edges, thereby increasing the heating/vaporization efficiency of the device.

REFERENCES:
patent: 941215 (1909-11-01), Wade
patent: 1820458 (1931-08-01), Jenkins
patent: 4334141 (1982-06-01), Roller et al.
patent: 4343988 (1982-08-01), Roller et al.
patent: 4351385 (1982-09-01), Amey
patent: 4371777 (1983-02-01), Roller et al.
patent: 6816670 (2004-11-01), Renau
patent: P09-192147 (1997-07-01), None
Korean patent application No. 10-2006-0126835, Notice of Allowance, Examination Result, Written Argument, and Amendment.

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