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.

Date of Patent:
May. 23, 2017

Filed:

Jun. 17, 2011
Applicants:

Dongqiang Luo, Shanghai, CN;

Richard J. Kriz, Ii, Fort Wayne, IN (US);

Inventors:

Dongqiang Luo, Shanghai, CN;

Richard J. Kriz, II, Fort Wayne, IN (US);

Assignee:

BWI (Shanghai) Co., Ltd., Shanghai, CN;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 11/20 (2006.01); F15B 15/02 (2006.01); B60T 11/236 (2006.01); B60T 11/232 (2006.01); B60T 11/16 (2006.01);
U.S. Cl.
CPC ...
F15B 15/02 (2013.01); B60T 11/16 (2013.01); B60T 11/20 (2013.01); B60T 11/232 (2013.01); B60T 11/236 (2013.01);
Abstract

A master cylinder assembly of the type comprises a housing () disposed along an axis (A) defining a chamber () having a cylindrical shape extending horizontally between an open end and a closed end. A first cylinder () and a second cylinder () are disposed for sliding movement axially along the axis. Each of the cylinders includes a cylindrical wall () defining a cylindrical bore (). A piston () is disposed in each of the cylindrical bores. The cylindrical wall of each cylinder includes a cylinder ramp () to define a cylinder ramp shoulder (). Each piston includes a piston ramp () to define a piston ramp shoulder (). The piston ramp shoulder () of each piston and the cylinder ramp shoulder () of each cylinder radially engage one another in an assembled position to allow the cylinders () and the pistons () to abut one another during the sliding movement axially along the axis within the chamber of the housing.


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