Pdc Facilities, Inc.

Matthew Boesel

James P Maslowski

Elmer B Woods

Bruce A Bliefnick

Dean Molstad

Steve Zwicke

An LED replacement light bulb for use in a standard AC light bulb socket is provided. The light bulb includes a body, a heat sink portion and an end cap arranged to receive DC electrical current from the AC light bulb socket where the AC electrical system has been converted to a DC electrical system. The LED replacement bulb includes a base and wires connecting the base to a plurality of LEDs or to an LED board. A quick disconnect is disposed between the base and the plurality of LEDS or the LED board to allow for easy removal and replacement of the LEDs or of the LED board. In one preferred embodiment, a lens cover is provided with stand-off legs to avoid metal to metal contact between the bulb and its surrounding lighting fixture.

LED replacement bulb for use in low EM room

A waveguide for a radio frequency door like that used in a medical imaging room allows intravenous lines and electrical conduits to be inserted through the door frame without being disconnected from the patient. The waveguide includes a door frame section, and a removable, telescoping or pivoting movable member that cooperates with the door frame section to retain the conduits. The movable member is positioned away from the door frame section during insertion and removal of the conduits from the door frame section, and is positioned adjacent the door frame section when the conduits are being retained. The dimensions and materials of the waveguide are selected to achieve attenuation of electromagnetic interference.

Waveguide for a radio frequency door

A door and door frame assembly having a door closing mechanism adapted to provide sufficient closing force to the door so that the door engages and sufficiently compresses a gasket between the door and the door frame to prevent electromagnetic interference, such as environmental radio frequencies, from passing between the door and door frame. The door closing mechanism moves a strike plate relative to the door frame to close the door once it is latched to the strike plate. The strike plate is moveable between an extended position and a retracted position relative to the door frame. In the extended position, the gasket is not sufficiently compressed between the door and door frame even though the door is latched. In the retracted position, the gasket is sufficiently compressed between the door and the door frame to attenuate the passage of electromagnetic interference between the door and door frame.

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Waterford, WI, United States of America

Matthew Boesel