A-dec, Inc.

Christopher C Stone

Jason Alvarez

Jonathan E Myers

Patrick W Berry

Ryan M Williams

Takaaki Nakagawa

Joseph David Van Domelen

Eric Bube

Randall Joel Lonsdale

Carl G Nordstrom

Edward R Jacobs

Mathew H Parlier

Craig J Beard

Kenneth E Mattocks

Brian E Bonn

William R Stewart

Joseph Van Domelen

Jr Harold Halvorson

A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.

Dental light using LEDs

Dental light using LEDS

A chair back has a shell and a cushion overlying the shell for a patient chair configured to move from a generally upright sitting position to a generally supine position. A patient contact surface is bounded in part by a top edge and an opposing bottom edge, and has resiliently deflectable opposed wing sections extending between the top edge and the bottom edge. A stiff support region is centrally positioned relative to and at least partially recessed from the outer wing sections. The support region is configured to support a patient's spine when the patient chair is positioned in a generally supine position. The opposed wing sections extend laterally outwardly of the support region and are configured to support the arms of the patient when the patient chair is positioned in the generally supine position.

Patient chair

A back for a patient chair with which a patient may be moved from a generally upright sitting position to a generally supine position comprises a back shell and a cushion. The back shell has a front surface, a back surface, a top, a bottom, opposed first and second outer sides, a central section extending longitudinally from a region adjacent the top to a region adjacent the bottom and opposed side sections extending laterally outwardly from the central section toward the first and second outer sides. The cushion is attached to the back shell. The central section of the back shell comprises a plurality of stiffening elements that extend longitudinally of the back shell. A patient chair including the back is also described.

A back for a patient chair having a back shell with a substantially rigid central S-shaped central portion and laterally extending wing portions which have sufficient flexibility to allow deflection in the direction of the front surface upon imposition of a force. The back consists of a formed back shell, a cushion layer laid thereover and an upholstery layer covering the cushion, with the upholstery layer adhered to the cushion and having edge margins wrapped around the outer edge margins of the cushion. The cushion and upholstery material are secured to the back shell through adhesive applied between the wrapped over edge margin portions of the upholstery material and the back shell.

A mechanism for supporting and permitting selected adjustment of the position of a headrest relative to the back of a chair comprises a body, a first pivotable connection, a second pivotable connection and a selectively releasable locking mechanism. The first pivotable connection is near the first end of the body, adapted to connect to the chair and to allow pivoting of the body relative to the chair. The second pivotable connection is near the second end of the body, adapted to connect to the headrest and to allow pivoting of the headrest relative to the body. The selectively releasable locking mechanism is configured to retain the body in selected angular positions relative to the chair and relative to the headrest by clamping together interleaved plate members in frictional contact and to allow for one-handed actuation.

Headrest support and adjustment mechanism

Mechanism for supporting and permitting selected adjustment of the position of a headrest relative to the back of a chair includes an elongate housing, support brackets pivotally connected adjacent opposite ends of the body, and a plurality of interleaved elongate plate members extending longitudinally of the body and movable relative thereto, with opposite ends of the interleaved plate members pivotally connected to the brackets. Clamping mechanism is provided for releasably clamping interleaved portions of the plate members to hold them, and their associated brackets, in selected positions. A slide mechanism mounts a headrest permitting translational movement of the headrest relative to the mechanism.

Growing community of inventors

Newberg, OR, United States of America

Christopher C Stone