Roy Ruo Song Fan

age ~66

from Arcadia, CA

Get Report

Also known as:

Connected to:

Name / Title

Company / Classification

Phones & Addresses

Roy Y. Fan
President

Usas Manufacturing Group Inc

11892 Shadycrest Ln, La Habra, CA 90631

view source

Position:

CEO at Green Project Inc

Location:

Greater Los Angeles Area

Industry:

Computer Hardware

Work:

Green Project Inc since Jul 2008
CEO

Rotating Drive Shaft Coupling
view source
US Patent:

20130058710, Mar 7, 2013
Filed:

Sep 2, 2011
Appl. No.:

13/224900
Inventors:

Roy Fan - Arcadia CA, US
International Classification:

F16D 1/02
US Classification:

403348
Abstract:

A rotatable coupling is used with a replaceable developer cartridge and electrostatographic image devices. The coupling has a driven portion and a driving portion. The driven portion has a shaft with a connecting portion that has a plurality of helical involute teeth extending outwardly. The driving portion has an end with a gear shaft and a twisted petaline recess in the gear shaft. The sides of the recess are engageable with the helical involute teeth so that the driving portion drives the driven portion and transmit torque.

Rotating Drive Shaft Coupling
view source
US Patent:

20140169868, Jun 19, 2014
Filed:

Dec 18, 2013
Appl. No.:

14/132862
Inventors:

Roy Fan - Arcadia CA, US
International Classification:

F16D 1/02
US Classification:

403348
Abstract:

A rotatable coupling is used with a replaceable developer cartridge and electrostatographic image devices. The coupling has a driven portion and a driving portion. The driven portion has a shaft with a connecting portion that has a plurality of helical involute teeth extending outwardly. The driving portion has an end with a gear shaft and a twisted recess in the gear shaft. The sides of the recess are engageable with the helical involute teeth so that the driving portion drives the driven portion and transmit torque.