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:
Nov. 08, 1983
Filed:
May. 21, 1982
Hayden L Leason, Palmas Del Mar, PR (US);
Filtertek, Inc., Hebron, IL (US);
Abstract
The present invention relates to a process and apparatus for making sealed filter units which include a plurality of filter elements. The apparatus includes a lower mold half for supporting a filter element support and a retractable locater member. The retractable locater member includes a reduced cross-sectional notched portion which projects above the lower mold half. When retracted into the lower mold half, the notched portion in conjunction with the upper and lower mold halves forms a cavity along the outer and upper peripheral edges of the filter elements and support. A thermoplastic material is injected into this cavity to capture the filter elements to the filter element support.