Device for indicating low tire pressure
First Claim
1. A device for indicating low compressed air pressure inflation in a vehicle tire having a rim and a valve stem with said rim as well as a rear-view mirror for the driver on at least one side of the vehicle, said device comprising:
- means for attaching the device to the tire rim;
a hose connectable to said valve stem of said tire and containing means for communicating with the compressed air therein;
a body connected to and in communication with the interior of said hose for receiving compressed air from said hose;
an indicator which serves for visual indication of low pressure in tire inflation and which is pivotably attached to said body in a location remote from said hose, the indicator having a means connected therewith;
actuating means disposed in said body and responsive to the pressure of said compressed air for selectively holding said indicator in a first operating position during operation of the tire in a properly inflated state, and releasing said indicator, upon a drop in the pressure of said compressed air below a predeterminded level, to allow said indicator to pivot and assume a second, low-pressure position of visual indication of low pressure in tire inflation;
said actuating means including a member adapted to mate with said means connected therewith such that said indicator is constrained from pivotal movement; and
resilient means external to and connected to the body said resilient means being means for effecting said pivotal movement of said indicator to said second, low-pressure position upon release of said indicator by operation of said actuating means to release said indicator from being constrained from pivotal movement;
said device being structured such that said release of said indicator is followed by pivotal movement of said indicator into said second low-pressure position such that said indicator is visible to a driver or occupant inside a vehicle when the device is mounted on a tire rim of that vehicle.
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Accused Products
Abstract
The device for indication of low pressure in tire inflation includes a hose which can be connected to the valve stem of the tire for communicating with the compressed air therein. A body is connected to and is in communication with the interior of the hose for receiving compressed air therefrom. An indicator is pivotably attached to the body remote from the hose. An actuating mechanism is disposed in the body and is responsive to the pressure of the compressed air for selectively holding the indicator in a first position during normal operation, and releasing the indicator, upon a drop in the pressure of the compressed air below a predetermined level, to allow the indicator to pivot and assume a second, low-pressure position. A spring is provided for effecting the pivotal movement of the indicator to the second, low-pressure position upon release of the indicator by the actuating mechanism.
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Citations
12 Claims
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1. A device for indicating low compressed air pressure inflation in a vehicle tire having a rim and a valve stem with said rim as well as a rear-view mirror for the driver on at least one side of the vehicle, said device comprising:
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means for attaching the device to the tire rim; a hose connectable to said valve stem of said tire and containing means for communicating with the compressed air therein; a body connected to and in communication with the interior of said hose for receiving compressed air from said hose; an indicator which serves for visual indication of low pressure in tire inflation and which is pivotably attached to said body in a location remote from said hose, the indicator having a means connected therewith; actuating means disposed in said body and responsive to the pressure of said compressed air for selectively holding said indicator in a first operating position during operation of the tire in a properly inflated state, and releasing said indicator, upon a drop in the pressure of said compressed air below a predeterminded level, to allow said indicator to pivot and assume a second, low-pressure position of visual indication of low pressure in tire inflation; said actuating means including a member adapted to mate with said means connected therewith such that said indicator is constrained from pivotal movement; and resilient means external to and connected to the body said resilient means being means for effecting said pivotal movement of said indicator to said second, low-pressure position upon release of said indicator by operation of said actuating means to release said indicator from being constrained from pivotal movement;
said device being structured such that said release of said indicator is followed by pivotal movement of said indicator into said second low-pressure position such that said indicator is visible to a driver or occupant inside a vehicle when the device is mounted on a tire rim of that vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification