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:
May. 20, 1997
Filed:
May. 24, 1994
Zohar Ophir, Haifa, IL;
Abstract
A method of manufacturing a bobbin made essentially or partially of a curable resin comprises the steps of: a) providing a mold consisting of a male portion and of a female portion, the gap left between the said female and the male portions, in their operational mounted position, being of the shape and dimensions of the bobbin which it is desired to produce, the mold being provided with a resin inlet and vacuum port in communication with the gap; (b) laying on the surface of the male part of the mold, or winding thereon, any element or material which it is desired to embed within the resin; c) inserting the male part of the mold into the female part thereof and securely connecting the two parts, the two parts, when connected, being essentially sealed against pressure loss along their contact surfaces; d) causing a curable resin to flow into the gap through the resin inlet, while applying a vacuum at the vacuum port, until the empty space provided within the gap is substantially entirely filled with resin; e) allowing the resin to solidify; and f) opening the mold and removing the bobbin from the male part thereof.