Abstract A unit for electrically heating and dispensing products from pressurized containers receives a pressurized container, and, upon actuation of the container valve, directs the product through a series of passages, including one or more product heating chambers. Each heating chamber is formed in part by channels on an exterior surface of a relatively massive heat sink unit having an electrical resistance heating element associated therewith. The channels are sealed by a cover assembly comprising a first member of relatively thin plastic material adapted to withstand the temperature of the product, and a second member of relatively thick flexible material coextensive with and superimposed over the first member which urges the first member into sealing engagement with the margins of the channel.
Inventors
👤 E Doyle
👤 R Bagwell
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 23:16
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/72
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
143 words
In a product dispenser of the type including an electrical resistance heating element, and a heat storage element in thermal communication with said heating element and having on an outer surface thereof at least one open channel having an inlet and an outlet for receiving said product, the improvement comprising a cover assembly for said channel comprising, in combination: a first member of relatively thin synthetic plastic material adapted to withstand the temperature of the product to be dispensed and dimensioned to overlie said channel; a second member of relatively thick flexible material coextensive with and superimposed over said first member; and means for urging said second member into closely overlying relationship to said outer surface of said heating element whereby said first member is urged into sealing engagement with the margins of said channel to form a heating chamber for said product.
Claim 2
Dependent Claim
143 words
In a product dispenser of the type including an electrical resistance heating element, and a heat storage element in thermal communication with said heating element and having on an outer surface thereof at least one open channel having an inlet and an outlet for receiving said product, the improvement comprising a cover assembly for said channel comprising, in combination: a first member of relatively thin synthetic plastic material adapted to withstand the temperature of the product to be dispensed and dimensioned to overlie said channel; a second member of relatively thick flexible material coextensive with and superimposed over said first member; and means for urging said second member into closely overlying relationship to said outer surface of said heating element whereby said first member is urged into sealing engagement with the margins of said channel to form a heating chamber for said product.
Claim 3
Dependent Claim
27 words
A cover assembly as defined in claim 1 wherein said first member is formed of polyethylene terephthalate and said second member is formed of a rubber material.