Resilient tires and wheels – Tires – resilient – Inflating devices
Patent
1984-10-26
1986-08-19
Boland, Lois E.
Resilient tires and wheels
Tires, resilient
Inflating devices
731468, 116 34R, 137227, 137557, 138 892, 188 67, 188 83, B60C 2304
Patent
active
046063919
ABSTRACT:
The disclosure describes a valve cap which indicates the pressure within a pneumatic tire. The valve cap comprises a sleeve which may be mounted on the valve tube of the pneumatic tire and which includes an actuating member for opening a valve within the valve tube when the sleeve is mounted on the valve tube; a compressed-air chamber within the sleeve which communicates with the interior of the tire through the open valve and which includes a movable wall structure, such as a diaphragm or a piston, that seals the compressed-air chamber relative to ambient pressure and that moves in a first axial direction in response to an increase in pressure in the compressed-air chamber; an indicator mounted for axial movement within the sleeve and actuated by the diaphragm or piston; a marking member cooperatively arranged with the indicator for movement in the first axial direction through the sleeve; a return movement inhibitor associated with the marking member for inhibiting movement of the marking member; and a spring cooperating with the indicator and biased toward the opposite axial direction whereby an increase in pressure in the compressed-air chamber axially moves the indicator and marking member in the first axial direction relative to the sleeve and a decrease in the compressed-air chamber axially moves the indicator in the opposite axial direction relative to the sleeve while the return movement inhibitor retains the marking member in its position relative to the sleeve.
REFERENCES:
patent: 1322884 (1919-11-01), Edelmann
patent: 2618977 (1952-11-01), Hottenroth
patent: 3779080 (1973-12-01), Smith
patent: 4196690 (1980-04-01), Alinari
patent: 4362121 (1982-12-01), Pegram
patent: 4520664 (1985-06-01), Kramer
Bokan Thomas
Boland Lois E.
LandOfFree
Valve cap with pressure drop indication for pneumatic tires does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve cap with pressure drop indication for pneumatic tires, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve cap with pressure drop indication for pneumatic tires will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-389721