Christine M Blake

US Patent:

20150013814, Jan 15, 2015

Filed:

Jan 10, 2014

Appl. No.:

14/152593

Inventors:

- Detroit MI, US
CHRISTINE A. BLAKE - ROYAL OAK MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F16H 57/027
F15B 1/12

US Classification:

138 30

Abstract:

A fill cap assembly for a transmission is provided. In one form, the fill cap assembly includes a first part and a second part, each defining a cavity therein. A flexible membrane is disposed between the first and second parts and separates the cavities of the first and second parts. The cavities are sealed from each other by the membrane. The cavity of the first part is configured to be in fluid communication with the inside of the transmission. When pressure rises in the transmission, the flexible membrane expands into the cavity of the second part. When pressure sinks in the transmission, the membrane collapses partially into the cavity of the first part, thus expanding out of and/or away from the cavity of the second part.

US Patent:

20140327260, Nov 6, 2014

Filed:

May 2, 2013

Appl. No.:

13/875532

Inventors:

- Detroit MI, US
Christine A. Blake - Royal Oak MI, US
Sunil Nandwani - Troy MI, US
John S. Agapiou - Rochester Hills MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B25J 15/00

US Classification:

2941191

Abstract:

A part transfer system includes a robotic arm, and an end effector attached to the robotic arm. The end effector includes a locating pin that is operable to engage an existing part feature of a part. The presence of the existing part feature is required for the intended use of the part, and therefore serves a function of the part other than a transfer function. The existing part feature defines a circular aperture disposed on a feature plane. The locating pin includes an engagement portion that extends along a longitudinal axis of the at least one locating pin. The engagement portion includes a diameter that is tapered along the longitudinal axis such that the engagement portion of the locating pin engages a radial inner edge of the circular aperture on the feature plane along an approximately annular contact ring disposed about a circumference of the tapered portion.