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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 10197183 B1

PDFFull Text
Date of Patent:
Feb. 05, 2019

Filed:

Dec. 03, 2015

Valve stem and plug connections and staking tools

Applicant:

Fisher Controls International Llc, Marshalltown, IA (US);

Inventor:

Paul Taylor Alman, Marshalltown, IA (US);

Assignee:

FISHER CONTROLS INTERNATIONAL LLC, Marshalltown, IA (US);

Attorney:

Hanley, Flight & Zimmerman, LLC

Primary Examiner:

Marina Tietjen

Assistant Examiner:

Paul J Gray

Int. Cl.
CPC ...
F16B 4/00 (2006.01); F16K 1/48 (2006.01); F16K 31/50 (2006.01); F16K 1/36 (2006.01); B23P 15/00 (2006.01); B25B 27/24 (2006.01); F16B 39/02 (2006.01); F16B 39/04 (2006.01); F16B 41/00 (2006.01); B21J 15/48 (2006.01);
U.S. Cl.
CPC ...
F16K 31/508 (2013.01); B23P 15/001 (2013.01); B25B 27/24 (2013.01); F16B 39/025 (2013.01); F16B 39/04 (2013.01); F16B 41/002 (2013.01); F16K 1/36 (2013.01); F16K 1/48 (2013.01); F16K 1/487 (2013.01); B21J 15/48 (2013.01); F16B 4/004 (2013.01);
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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