Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Reexamination Certificate
2001-06-18
2002-07-02
Walberg, Teresa (Department: 3742)
Electric resistance heating devices
Heating devices
Continuous flow type fluid heater
C392S478000, C210S184000
Reexamination Certificate
active
06415103
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a thermostatic heating device for liquids, provided with a recirculation pump.
SUMMARY OF THE INVENTION
An object of the invention is to provide a thermostatic heating device presenting double insulation of the parts under voltage, and hence satisfying existing regulations.
Another object of the invention is to provide a thermostatic heater having high adjustment sensitivity.
Another object of the invention is to provide a thermostatic heater of simple production and of safe and reliable operation even in abnormal situations.
A further object of the invention is to provide a thermostatic heater of smaller dimensions than traditional heaters.
These and further objects which will be apparent from the ensuing description are attained according to the invention by a thermostatic heating device for liquids, provided with a recirculation pump, having:
an outer housing of heat-insulating dielectric material,
an inner casing of heat-conductive dielectric material,
a resistive film interposed between said housing and said casing,
a tube of heat-conductive material positioned in the interior of said casing, said tube having a lower opening to house the impeller of a pump applied at one end of said cylindrical housing, the other end of said tube emerging through an aperture provided in the other surface of said cylindrical housing.
REFERENCES:
patent: 3816026 (1974-06-01), Isaacson et al.
patent: 4563571 (1986-01-01), Koga et al.
patent: 4855569 (1989-08-01), Wiedemann
patent: 5238367 (1993-08-01), Ellis et al.
patent: 5514280 (1996-05-01), Logan
patent: 6106709 (2000-08-01), Bresolin
Campbell Thor
Hoffman Wasson & Gitler PC
Hydor S.R.L.
Walberg Teresa
LandOfFree
Thermostatic heating device for liquids, provided with a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermostatic heating device for liquids, provided with a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermostatic heating device for liquids, provided with a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2860608