Christopher Aaron Rich

US Patent:

7343693, Mar 18, 2008

Filed:

Nov 9, 2006

Appl. No.:

11/598257

Inventors:

Donald K. Mitchell - Wayland MA, US
Donald L. Grimes - Milford MA, US
William G. Thorburn - Whitinsville MA, US
Keith M. Hinrichs - Natick MA, US
Andrew Goldman - Stow MA, US
Joel M. Petersen - Valley Village CA, US
Christopher C. Rich - Rancho Palos Verdes CA, US

Assignee:

GSI Group Corporation - Billerica MA

International Classification:

G01B 11/02

US Classification:

33707

Abstract:

A flexible optical marker is applied to an optical scale substrate to make an optical scale assembly for an optical position encoder. The marker may be a limit marker, index marker, or other type of marker. The marker substrate may be a plastic film such as polyester, singulated from a “recombine” roll created by a web process. The marker has a microstructured pattern on one surface that is covered with a reflective metal coating. The marker also has an adhesive layer and is affixed to the optical scale substrate by a process of aligning the marker to an edge of the scale and then applying pressure to the upper surface of the marker. The marker may be applied with a handle portion that is separated from the marker after the marker is affixed. The marker may be especially useful with a flexible scale substrate such as a metal tape substrate. By affixing the marker to the scale substrate as a separate step of making an encoder scale, various benefits such as reduced inventory, cost, and lead time may be achieved.

US Patent:

20030162145, Aug 28, 2003

Filed:

Dec 23, 2002

Appl. No.:

10/328677

Inventors:

Thomas Masterman - Brookline MA, US
David Tyndall - Medway MA, US
Edward Mangan - Southboro MA, US
Christopher Rich - Cambridge MA, US
Gordon Jones - Allston MA, US

International Classification:

A61C003/03

US Classification:

433/118000

Abstract:

A vibrating oral care device for cleaning interdental spaces includes a housing which can be gripped by human fingers. A battery is located within the housing. An electric vibrator is also located within the housing. A switch on the housing is used to electrically connect the battery to the vibrator. A rigid element extends from one end of the housing. When the switch is operated to connect the battery to the vibrator, the vibrator vibrates and causes the rigid element to vibrate.

US Patent:

20070054240, Mar 8, 2007

Filed:

Nov 2, 2006

Appl. No.:

11/591827

Inventors:

Thomas Masterman - Brookline MA, US
David Tyndall - Medway MA, US
Edward Mangan - Southboro MA, US
Christopher Rich - Cambridge MA, US
Gordon Jones - Allston MA, US

International Classification:

A61C 3/03
A61C 15/00

US Classification:

433118000, 132323000

Abstract:

A vibrating oral care device for cleaning interdental spaces includes a housing which can be gripped by human fingers. A battery is located within the housing. An lectric vibrator is also located within the housing. A switch on the housing is used to electrically connect the battery to the vibrator. A rigid element extends from one end of the housing. When the switch is operated to connect the battery to the vibrator, the vibrator vibrates and causes the igid element to vibrate.

US Patent:

20080014552, Jan 17, 2008

Filed:

Jul 18, 2007

Appl. No.:

11/879570

Inventors:

Edward Mangan - Southboro MA, US
Gordon Jones - Needham MA, US
David Tyndall - Princeton NJ, US
Christopher Rich - Madison NJ, US

International Classification:

A61C 3/03

US Classification:

433118000

Abstract:

A vibrating oral care device for cleaning interdental spaces includes a housing which can be gripped by human fingers. A battery is located within the housing. An electric vibrator is also located within the housing. A switch on the housing is used to electrically connect the battery to the vibrator. A rigid element extends from one end of the housing. When the switch is operated to connect the battery to the vibrator, the vibrator vibrates and causes the rigid element to vibrate.