Michael J Wahl

US Patent:

6568836, May 27, 2003

Filed:

Sep 19, 2001

Appl. No.:

09/955878

Inventors:

Michael Wahl - Troy OH

Assignee:

Midmark Corporation - Versailles OH

International Classification:

F21S 806

US Classification:

362404, 362418, 362371, 362804, 362285, 2482981, 248343

Abstract:

A track mounting system for supporting equipment, such as a dental light, includes a pan-shaped carriage which is suspended from the track mounting system and to which the light or other equipment is attached. The track mounting system includes a pair of spaced, parallel tracks which are engaged by rollers rotatably mounted on inner walls of the carriage. At least one of the rollers is formed from a relatively hard material and is concave to mate with the complementary surface on one of the tracks to provide resistance against side loads. Other rollers are formed from a relatively soft material and are convex to provide a light frictional resistance to movement of the carriage along the tracks that inhibits drift, over-travel and other inadvertent movement of the carriage, while reducing noise.

US Patent:

8029505, Oct 4, 2011

Filed:

Aug 25, 2005

Appl. No.:

11/213030

Inventors:

Jim Hearn - Coatsville PA, US
Thomas J. Maughan - Downingtown PA, US
Timothy J. Horan - Royersford PA, US
Michael J. Wahl - Wilmington DE, US

Assignee:

Synthes USA, LLC - West Chester PA

International Classification:

A61B 17/00

US Classification:

606 56, 606277, 606 59

Abstract:

An external fixation system for connecting one or more bone segments together to facilitate healing of bone. The system may include one or more rings and/or ring segments. One or more linear distractors and/or angular distractors may connect the rings to each other so as to allow for distraction and/or reduction/compression of a bone. Linear distractors may enable an operator to move the rings towards and away from each other, while angular distractors may enable an operator to angle the rings relative to each other. In an embodiment using angular distractors, one or more angular separation assemblies may be positioned between the rings. These separation assemblies may have joints which may two portions which may be angled relative to each other and connected directly or indirectly to the rings. Various fasteners (e. g. , nuts) and/or tightening members may configured for quick movement along and selective tightening to various components.

Author:

Michael Wahl

ISBN #:

3527404422

Author:

Michael Iver Wahl

ISBN #:

0442291507