The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1992
Filed:
Apr. 10, 1991
Applicant:
Inventors:
Dudley W Spencer, Wilmington, DE (US);
John B Shaposka, Wilmington, DE (US);
Assignee:
Denco Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; A61M / ;
U.S. Cl.
CPC ...
156158 ; 156159 ; 156251 ; 156258 ; 1563042 ; 1563045 ; 1563046 ; 156515 ; 156518 ; 156530 ;
Abstract
Plastic tubes are welded together by placing each tube in a nest which includes a pair of grooves and an anvil centrally located between the grooves. Each tube is positioned in the grooves around the anvil for being juxtaposed the other tube. A wafer of movably mounted to move to the gap between the anvils so as to heat the ends of the tubes and melt the tubes without actually cutting through the tubes. The melted ends are then joined together so that the two tubes are thereby connected with one section of each tube being in flow communication with a corresponding section of the other tube.