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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.:

US 10377070 B1

PDFFull Text
Date of Patent:
Aug. 13, 2019

Filed:

Feb. 26, 2016

Method for manufacturing bearing cage

Applicant:

Nsk Ltd., Tokyo, JP;

Inventors:

Yoshikazu Kuramoto, Fujisawa, JP;

Nariaki Aihara, Fujisawa, JP;

Takayuki Hiramoto, Fujisawa, JP;

Assignee:

NSK LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Phillip A Johnson

Int. Cl.
CPC ...
F16C 33/41 (2006.01); F16C 33/49 (2006.01); B29C 45/27 (2006.01); B29C 45/26 (2006.01); B29C 45/00 (2006.01); F16C 33/44 (2006.01); F16C 19/06 (2006.01); B29L 31/04 (2006.01); B29K 101/12 (2006.01); B29K 309/08 (2006.01);
U.S. Cl.
CPC ...
B29C 45/2708 (2013.01); B29C 45/0025 (2013.01); B29C 45/0046 (2013.01); B29C 45/2669 (2013.01); F16C 33/416 (2013.01); F16C 33/44 (2013.01); B29C 45/2616 (2013.01); B29C 45/2628 (2013.01); B29C 2045/0006 (2013.01); B29C 2045/0027 (2013.01); B29C 2045/0044 (2013.01); B29K 2101/12 (2013.01); B29K 2309/08 (2013.01); B29L 2031/04 (2013.01); F16C 19/06 (2013.01); F16C 33/498 (2013.01); F16C 2208/04 (2013.01); F16C 2300/02 (2013.01);
Abstract

A resin reservoir capable of storing the melted resin is provided in the pillar radially facing the pillar provided with the resin injection gate having a cross-sectional area larger than those of the other resin injection gates among a plurality of the pillars not provided with the resin injection gate or the pillar in the vicinity of the pillar facing the pillar provided with the resin injection gate having a cross-sectional area larger than those of the other resin injection gates among the plurality of the pillars not provided with the resin injection gate. A cross-sectional area of a communicating portion of the resin reservoir which communicates with the pillar is smaller than the smallest of cross-sectional areas of a plurality of the resin injection gates.

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