GERALD L YEANEY
Engineers in Raleigh, NC

6443596, Sep 3, 2002

Mar 30, 1998

09/050529

John M. Bulko - Apex NC
Gerald L. Yeaney - Raleigh NC
Michael A. Taft - Raleigh NC

Hill-Rom Services, Inc. - Batesville IN

F21V 900

362293, 362 33, 362804

A surgical light apparatus is disclosed having a first light source generating visible light and heat energy radiation, an enclosure surrounding the first light source and including a lens substantially transparent to visible light and a reflector for reflecting light from the first light source through the lens, and a filter apparatus coupled to the enclosure and formed at least in part from a material that is substantially transparent to at least a portion of visible light radiation and that substantially blocks transmission of heat energy radiation The filter apparatus is configured to block transmission of heat energy radiation from the first light source to the reflector and to intercept substantially all radiation from the first light source that otherwise would pass to the reflector and through the lens. The filter apparatus includes a plurality of filter elements configured to define at least one gap between two adjacent filter elements allowing air flow therethrough.

6012821, Jan 11, 2000

Mar 30, 1998

9/050530

Gerald L. Yeaney - Raleigh NC
John M. Bulko - Apex NC
Frank L. Martyna - Oil City PA
Thomas M. Peterson - Erie PA
Michael A. Taft - Raleigh NC

Hill-Rom, Inc. - Batesville IN

A61G 1300, F21V 2126

362 33

An arm assembly for supporting a surgical lighthead of a surgical light apparatus includes a first arm and a first clevis appended to the first arm and having a first stop surface and a second stop surface. The arm assembly also includes a second arm formed to include an interior region and a second clevis appended to the second arm and having a third stop surface and a fourth stop surface. The surigcal lighthead is supported by the second arm. The second arm and second clevis are pivotable about a main pivot axis relative to the first arm and first clevis between a first position in which the third stop surface engages the first stop surface to limit pivoting movement of the second clevis and second arm in a first direction and a second position in which the fourth stop surface engages the second stop surface to limit pivoting movement of the second clevis and second arm in a second direction.

6893137, May 17, 2005

Jul 2, 2002

10/188439

John M. Bulko - Apex NC, US
Gerald L. Yeaney - Raleigh NC, US
Michael A. Taft - Raleigh NC, US

Hill-Rom Services, Inc. - Wilmington DE

F21V009/06

362 33, 362293, 362804

A surgical light apparatus is disclosed having a first light source generating visible light and heat energy radiation, an enclosure surrounding the first light source and including a lens substantially transparent to visible light and a reflector for reflecting light from the first light source through the lens, and a filter apparatus coupled to the enclosure and formed at least in part from a material that is substantially transparent to at least a portion of visible light radiation and that substantially blocks transmission of heat energy radiation. The filter apparatus is configured to block transmission of heat energy radiation from the first light source to the reflector and to intercept substantially all radiation from the first light source that otherwise would pass to the reflector and through the lens. The filter apparatus includes a plurality of filter elements configured to define at least one gap between two adjacent filter elements allowing air flow therethrough.