Appeal No. 95-1711
Application No. 08/063,819
17. A method of degating molded parts comprising the
steps of:
(a) providing an injection molding material capable of
being molded in an injection molding apparatus;
(b) molding a solid configuration from said molding
material comprising parts secured to a runner system by gates
of said molding material, said gates having a cross-section
substantially smaller than any cross-section of said molded
configuration which is contacting and integral therewith;
(c) cooling the surfaces of said configuration to a
temperature and for a time until only said gates become
brittle; and
(d) applying an impact to said configuration while said
gates are brittle to cause said configuration to sever at said
gates and separate said runner system from said parts.
The references of record relied upon by the examiner are:
Jones et al. (Jones) 3,468,077
Sep. 23, 1969
Oishi et al. (Oishi) 5,190,712
Mar. 2, 1993
The appealed claims stand rejected for obviousness
(35 U.S.C. § 103) as unpatentable over Oishi or certain
admitted prior art in view of Jones. Additionally, claims 17,
19, 21 and 23 stand rejected under 35 U.S.C. § 112, first
paragraph, “enablement requirement.”
We reverse.
2
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007