Title: Hot plate

Abstract: This invention pertains to a hot plate and more specifically to an industrial hot plate for use in highly corrosive environments where chemicals of high acidity or high alkalinity are employed. An epoxy foam is utilized both to thermally isolate the heated surface from the base structure and to protect the heating element and the associated electrical circuit from damage from the active chemical agents that may be involved upon using the instant hot plate.

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Inventors: Blackwood, Robert S. (Chanhassen, MN, US)

Application Number: 510148
Filing Date: 1974-09-30
Publication_date: 1976-02-03
Assignee: Fluoroware Systems Corporation (Chaska, MN)
Primary Class(es): 219/467.1 99/422, 219/544
Other Classes:
US Patent Ref:

1174030	Feb, 1916	Hadawa, Jr.	219/460.
1237592	Aug, 1917	White	219/457.
1348648	Aug, 1920	Kelly	219/460.
1654292	Dec, 1927	Keene et al.	219/459.
2644880	Jul, 1953	Valentini et al.	219/525.
2833908	May, 1958	Scofield	219/465.
2978564	Apr, 1961	Blanding et al.	219/460.
3043943	Jul, 1962	Moot	219/460.
3172072	Mar, 1965	Willy	219/528.
3622753	Nov, 1971	Lax et al.	219/464.
3733462	May, 1973	Bouchard et al.	219/464.
3870861	Mar, 1975	Werych	219/459.

Other Refs:
Primary Examiner: Mayewsky, Volodymyr Y.
Assistant Examiner:
Attorney: Palmatier; H. Dale, Haller; James R.