Shawn R Irwin

US Patent:

7195219, Mar 27, 2007

Filed:

Dec 10, 2003

Appl. No.:

10/734068

Inventors:

Shawn R. Irwin - Newberg OR, US
Jonathan E. Myers - Portland OR, US
J. Rick Halbirt - Hubbard OR, US
Robin R. Winter - Newberg OR, US

Assignee:

A-dec, Inc. - Newberg OR

International Classification:

F16M 13/00
A61G 15/00

US Classification:

2482841, 2482821, 433 33, 433 79, 297242

Abstract:

A system for reconfigurably adapting a dental chair for use, including, e. g. , use from the right side or left side, use by right-handed or left-handed practitioners and use in various dentistry practice styles, may include a link arm, a primary arm and a secondary arm. The link arm is pivotably connectible to a rear side of the dental chair. The primary arm is pivotably connectible to the link arm to swing in a generally horizontal plane about a generally vertical axis. The secondary arm is coupleable to the link arm, preferably along substantially the same axis. The secondary arm has multiple pivotably connected segments allowing its distal end to be positioned as desired.

US Patent:

D3784150, Mar 11, 1997

Filed:

Sep 27, 1995

Appl. No.:

D/044608

Inventors:

Shawn R. Irwin - Newberg OR
Carl G. Nordstrom - Lake Oswego OR

Assignee:

A-Dec, Inc. - Newberg OR

US Classification:

D24177

US Patent:

57882177, Aug 4, 1998

Filed:

Jul 7, 1995

Appl. No.:

8/499426

Inventors:

George K. Austin - Newberg OR
Shawn R. Irwin - Newberg OR
Brian E. Bonn - Portland OR

Assignee:

A-Dec, Inc. - Newberg OR

International Classification:

F16K 3100

US Classification:

251331

Abstract:

The flow of water to a cuspidor bowl-rinse spout and cup-filling spout is controlled by a normally closed valve that is actuated by a lever, the ends of which lever protrude through opposite sides of the cuspidor housing. Either end of the lever may be moved in either of two opposite directions for actuating the valve.

US Patent:

51903490, Mar 2, 1993

Filed:

Mar 29, 1990

Appl. No.:

7/501674

Inventors:

George K. Austin - Newberg OR
El Don L. Hoven - Newberg OR
Tony J. Tewell - Newberg OR
Shawn R. Irwin - Newberg OR
Paul B. Krebs - Newberg OR
Bradley A. Rice - Salem OR

Assignee:

A-Dec, Inc. - Newberg OR

International Classification:

A47C 102

US Classification:

297316

Abstract:

The chair includes a movable seat and back that are configured to enhance the patient's comfort by providing lumbar support when the chair is in the recumbent position and by minimizing patient sliding within a moving chair. Chair movement is controlled by a microprocessor-based control system that includes sensing mechanisms for precisely monitoring the chair position. The sensing mechanisms are employed in conjunction with a memory device to permit the user to define a particular position into which the chair will move any time the appropriate switch is closed by the user. The chair control system diagnoses malfunctioning chair components and generates and displays data indicating the particular malfunctioning component.

US Patent:

52442543, Sep 14, 1993

Filed:

Sep 2, 1992

Appl. No.:

7/939938

Inventors:

Shawn R. Irwin - Newberg OR

Assignee:

A-Dec, Inc. - Newberg OR

International Classification:

A47C 102

US Classification:

29734422

Abstract:

The chair includes a movable seat and back that are configured to enhance the patient's comfort by providing lumbar support when the chair is in the recumbent position and by minimizing patient sliding within a moving chair. Chair movement is controlled by a microprocessor-based control system that includes sensing mechanisms for precisely monitoring the chair position. The sensing mechanisms are employed in conjunction with a memory device to permit the user to define a particular position into which the chair will move any time the appropriate switch is closed by the user. The chair control system diagnoses malfunctioning chair components and generates and displays data indicating the particular malfunctioning component.

US Patent:

D3438260, Feb 1, 1994

Filed:

Nov 19, 1992

Appl. No.:

D/001651

Inventors:

Paul B. Krebs - Newberg OR
Shawn R. Irwin - Newberg OR

Assignee:

A-dec, Inc. - Newberg OR

US Classification:

D13168

US Patent:

D3578348, May 2, 1995

Filed:

Jun 10, 1993

Appl. No.:

D/009394

Inventors:

Carl G. Nordstrom - Lake Oswego OR
Shawn R. Irwin - Newberg OR

Assignee:

A-Dec, Inc. - Newberg OR

US Classification:

D 6501

US Patent:

53409531, Aug 23, 1994

Filed:

Nov 19, 1992

Appl. No.:

7/978876

Inventors:

Paul B. Krebs - Newberg OR
Shawn R. Irwin - Newberg OR

Assignee:

A-Dec, Inc. - Newberg OR

International Classification:

H01H 314
A61G 1502

US Classification:

200 865

Abstract:

A switch controller having a housing cover with a central ridge and opposed top surfaces which incline downwardly away from the central ridge. The top surfaces also incline on progressing from one end of the housing to the opposite end. A pair of footpads are mounted on the upper surface of the housing and incline consistently with their associated portions of the housing surfaces. The under surfaces of the footpads have spaced apart contact points thereon. Underlying the contact points are associated switches which are actuated by pressing downwardly on selected regions of the footpads. Fulcrum means are disposed between the associated pairs of contact points and switches to inhibit simultaneous actuation of adjacent switches.