Head-up display unit

Details Head-up display unit Head-up display unit

2007-12-21

2011-12-27

Yu, Justine (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S201230, C128S205230, C128S205280, C128S206210, C128S206280

Reexamination Certificate

active

08082922

ABSTRACT:
A head-up display unit10comprises a microprocessor30which controls four light-emitting diodes (LEDs) which constitute the head-up display20. The microprocessor30and LEDs20are powered by a battery40and a switch50is in series with the battery. A temporary store60in the form of a capacitor is in parallel with the battery40after the switch50. A data receiver32is connected to the microprocessor30and communicates received data34to the microprocessor30. The head-up display unit10is located in the face-mask100of a self contained breathing apparatus unit. The LEDs20are located in the periphery of the viewable region of the face-mask100so that they can be seen by the user when the face-mask is worn. The switch50comprises two conductive rubber strips which conduct current between them when sufficient pressure is applied. The switch50is located on a portion of the face-mask seal102such that when the face-mask100is worn i.e. held against the face of the wearer, the rubber strips conduct current between them and when the face-mask is not being worn the rubber strips do not conduct. The switch50is embedded in the face-mask seal102in such a way that a tight seal between the user and the face-mask100is still achieved when the face-mask is worn.

REFERENCES:
patent: 5191317 (1993-03-01), Toth et al.
patent: 5492110 (1996-02-01), Lenz et al.
patent: 5697099 (1997-12-01), Siska et al.
patent: 6199550 (2001-03-01), Wiesmann et al.
patent: 6240921 (2001-06-01), Brydon et al.
patent: 6325521 (2001-12-01), Gregg et al.
patent: 6995665 (2006-02-01), Appelt et al.
patent: 2002/0176323 (2002-11-01), Magine et al.
patent: 2002/0186177 (2002-12-01), Hong et al.
patent: 2004/0046710 (2004-03-01), Adams et al.
patent: 2004/0163648 (2004-08-01), Burton

Affiliated with

Also associated with

Rating

Head-up display unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head-up display unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head-up display unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4255260