Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Reexamination Certificate
2007-03-27
2007-03-27
Pham, Toan N. (Department: 2612)
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
C116S03400R, C116S03400R, C073S146000
Reexamination Certificate
active
11069516
ABSTRACT:
A tire pressure warning device with adjustable pressure setting includes a case divided into a lower and an upper chamber and having a shoulder portion formed near a top thereof; a valve structure mounted in the lower chamber of the case; a membrane, a bushing, a push member, an elastic element, and a pressure-adjusting element sequentially mounted in the upper chamber of the case; and a cover connected to the top of the case. While the elastic element defines a basic pressure setting for the device to measure the air pressure inside a specific type of tire, a pressure-adjusting element with a suitable thickness may be selected to adjust the tightness of an elastic fixing element and thereby changes the pressure setting for the device, so that the device could also be used to measure the tire pressure of other different types of tires.
REFERENCES:
patent: 3859849 (1975-01-01), Novak
patent: 4425558 (1984-01-01), McConchie
patent: 4869306 (1989-09-01), Keys
patent: 5040561 (1991-08-01), Achterholt
patent: 5581023 (1996-12-01), Handfield et al.
patent: 5929330 (1999-07-01), Ford
patent: 6006600 (1999-12-01), Cheng
patent: 7032611 (2006-04-01), Sheng
Pham Toan N.
Pro-Techtor Int'l Services
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