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:
Jan. 06, 1976
Filed:
Dec. 11, 1974
William C Ramsey, Bryan, OH (US);
Other;
Abstract
A molded plastic J-shaped trap or conduit has a U-portion with a laterally curved or slightly helical configuration to provide for automatically producing the conduit within a multiple cavity injection mold. The mold includes a set of mold sections which define a U-shaped cavity having a slight helical configuration, and a slight helical U-shaped core member is supported within the cavity by a core support rod and a set of core slides which engage opposite ends of the core member. The core member and one of the core slides are adapted to be elevated after the mold sections are opened to remove a molded conduit from the cavity, and the core member remains supported by the core support rod which extends through the one core slide. The molded conduit is stripped from the core member by an annular stripping plate which is moved by an actuator along the core member in a helical path, and the conduit is directed past the core support rod as the conduit is being stripped.