John W Langer

US Patent:

20050277811, Dec 15, 2005

Filed:

May 25, 2005

Appl. No.:

11/137290

Inventors:

Charlotte Richards - Newton MA, US
Richard Ross - Newton MA, US
JoAnn Jorge - Ashland MA, US
Francis Gleason - Ashland MA, US
Randal Chinnock - Southbridge MA, US
Ronald Forni - Littleton MA, US
John Langer - Sturbridge MA, US
John Walsh - Norfolk MA, US
Brian Anderson - Ashland MA, US
Ken Doucette - Norton MA, US

Assignee:

Innovative Gynecological Solutions, LLC - Framingham MA

International Classification:

A61B001/00

US Classification:

600184000

Abstract:

A speculum for use with a body opening, such as a vagina, rectum or surgical wound, may have an insertion portion with an arcuately-shaped wall and a slot that extends along a length of the wall. An end face of the wall at the distal end of the insertion portion may be arranged at a non-perpendicular angle to the longitudinal axis of the insertion portion. A flange portion joined at a proximal end of the insertion portion may have a continuous band that extends radially outwardly from the wall and includes a notch that communicates with the slot. A handle portion may have a gripping surface extending proximally at a bottom side of the flange portion with an arcuate shape that is approximately concentric with the wall of the insertion portion. A top side of the flange portion may be free of the handle portion.

US Patent:

58650890, Feb 2, 1999

Filed:

Sep 19, 1997

Appl. No.:

8/934247

Inventors:

John W. Langer - Sturbridge MA
Michael T. Starr - Shrewsbury MA

International Classification:

F01B 3100
F16J 1518

US Classification:

92110

Abstract:

A linear thruster is disclosed in which a load beam is linearly moved relative to a guide beam by fluid power. One or both of the beams are multisided in cross-section to substantially increase the linear bearing area between the beams and substantially increase the strength of the linear thruster against side forces as well as moments while permitting a substantial reduction in the volumetric space consumed by the linear thruster. The fluid power and the energy inputs to the linear thruster may all be positioned at one end of the guide beam.

US Patent:

59570296, Sep 28, 1999

Filed:

Sep 19, 1997

Appl. No.:

8/934256

Inventors:

Peter W. Boyer - Manteno IL
Steven J. Breese - Plainfield IL
Daniel L. Choisser - Frankfort IL
Kevin R. Douglas - Lockport IL
David S. Harris - Naperville IL
John W. Langer - Sturbridge MA
Michael T. Starr - Shrewsbury MA
Mark A. Tichgelaar - Lansing IL

Assignee:

Bimba Manufacturing Co. - Monee IL

International Classification:

F01B 2526

US Classification:

92 5R

Abstract:

A linear thruster is disclosed in which a load beam is linearly moved by fluid power relative to a guide beam and a piston. The beams are multisided in cross-section to substantially increase the linear bearing area between the bodies and, thereby, substantially increase the strength of the linear thruster against side forces as well as moments to which the linear thruster might subjected. Internal positioning of the components and energy transmission are maximized and the stroke may be variably adjusted.