Cheng Peng

US Patent:

20100108884, May 6, 2010

Filed:

Oct 28, 2009

Appl. No.:

12/607550

Inventors:

Jun Lou - Houston TX, US
Yogeeswaran Ganesan - Houston TX, US
Yang Lu - Houston TX, US
Cheng Peng - Houston TX, US

Assignee:

William Marsh Rice University - Houston TX

International Classification:

G01N 23/225
G01N 3/42

US Classification:

250311, 73 81

Abstract:

The present disclosure describes micromechanical devices and methods for using such devices for characterizing a material's strength. The micromechanical devices include an anchor pad, a top shuttle platform, a nanoindenter in movable contact with the top shuttle platform and at least two sample stage shuttles. The nanoindenter applies a compression force to the top shuttle platform, and the at least two sample stage shuttles move apart in response to the compression force. Each of the at least two sample stage shuttles is connected to the top shuttle platform and to the anchor pad by at least one inclined beam. Methods for using the devices include connecting a sample between the at least two sample stage shuttles and applying a compression force to the top shuttle platform. Application of the compression force to the top shuttle platform results in a tensile force being applied to the sample. Measuring a tip displacement of the nanoindenter is correlated with the sample's strength. Illustrative materials that can be studied using the micromechanical devices include, for example, nanotubes, nanowires, nanorings, nanocomposites and protein fibrils.

US Patent:

20160296004, Oct 13, 2016

Filed:

Apr 7, 2016

Appl. No.:

15/093471

Inventors:

CHENG PENG - Rowland Heights CA, US

International Classification:

A47B 3/00
A47B 3/06

Abstract:

A folding table my include a table top and a supporting frame. The supporting frame may have a leg portion, an interconnecting portion and a central supporting structure; and the table top that is detachable from the supporting frame may have a plurality of connected table pieces. The leg portion includes a plurality of legs and the interconnecting portion is used to connect the legs of the leg portion, and the central supporting structure is located at center portion of the supporting frame to provide additional support to the supporting frame and is configured to start a table folding process.

US Patent:

20140150696, Jun 5, 2014

Filed:

Feb 10, 2014

Appl. No.:

14/176816

Inventors:

CHENG PENG - Rowland Heights CA, US

International Classification:

A47B 3/00
A47B 3/12
A47B 9/00

US Classification:

108 34, 108115, 108116

Abstract:

A folding table may include a table top and a supporting frame. The supporting frame may have a leg portion, an interconnecting portion and a central supporting structure; and the table top that is detachable from the supporting frame may have a plurality of connected table pieces. The leg portion includes a plurality of legs and the interconnecting portion is used to connect the legs of the leg portion, and the central supporting structure is located at center portion of the supporting frame to provide additional support to the supporting frame and is configured to start a table folding process.