04115182 is referenced by 33 patents and cites 4 patents.

An improved sealing apparatus is provided for cutting and heat sealing thermoplastic sheets which are drawn under tension through relatively movable sealing jaws which include heat-applying and cutting means. Coacting male and female sections are provided on the sealing jaws for preventing the thermoplastic sheets from engaging the heat-applying means while the thermoplastic sheets are being drawn under tension through the jaws. In addition, such sections also perform the additional function of applying a clamping force to the thermoplastic sheets when the jaws are in their closed position to overcome the tension on the thermoplastic sheets to thereby prevent slippage of the thermoplastic sheets relative to the sealing jaws during the heat-sealing operation.

Title
Sealing means
Application Number
5/810965
Publication Number
4115182
Application Date
June 29, 1977
Publication Date
September 19, 1978
Inventor
Martin Michael Wildmoser
Staten Island
NY, US
Agent
Lerner David Littenberg & Samuel
Assignee
Arenco Machine Company
NJ, US
IPC
B30B 15/34
B32B 31/00
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