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Title:
VALVE STEM AND PLUG CONNECTIONS AND STAKING TOOLS
Document Type and Number:
WIPO Patent Application WO/2016/130740
Kind Code:
A3
Abstract:
Example valve stem and plug connections and example staking tools are described herein. An example apparatus includes a valve plug having a first side, a second side opposite the first side and a bore extending from the first side to the second side. A first portion of the bore is tapered from a first diameter to a second diameter smaller than the first diameter. A valve stem is disposed within the bore of the valve plug. The valve stem includes a first section, a second section and a third section between the first and second sections. The third section is tapered from a third diameter to a fourth diameter smaller than the third diameter. The tapers of the first portion of the valve plug and the third section of the valve stem, when engaged, create a frictional force that resists movement of the valve stem out of the bore.

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Inventors:
ALMAN, Paul, T. (1906 Bailey Drive, Marshalltown, lowa, 50158, US)
Application Number:
US2016/017445
Publication Date:
November 03, 2016
Filing Date:
February 11, 2016
Export Citation:
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Assignee:
FISHER CONTROLS INTERNATIONAL LLC (205 S. Center Street, Marshalltown, lowa, 50158, US)
International Classes:
F16K1/36; B23P15/00; B25B27/24; F16B4/00; F16K1/48; F16K31/50
Domestic Patent References:
WO2003033928A12003-04-24
Foreign References:
US3101210A1963-08-20
JPH09287669A1997-11-04
US4274433A1981-06-23
JPS4820814B11973-06-23
Attorney, Agent or Firm:
READ, David, C. (MARSHALL, GERSTEIN & BORUN LLP233 S. Wacker Drive,6300 Willis Towe, Chicago IL, 60606-6357, US)
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