US3611284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion-sensing device
Assignee: Jolley Construction Co Inc
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Filing: 1968-08-05
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Granted: 1971-10-05
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Expires: 1988-08-05
Abstract
Abstract A rotary sensor wheel engages a moving part of a vehicle wheel and is coupled through a friction bearing to an actuator for an electric sensor switch which is closed by the actuator when the sensor wheel is rotating below a predetermined speed. The switch is in an electric control circuit for an electrically actuated device for relieving braking action on the vehicle wheel. A monitor wheel may be mounted for rolling contact with the road and is coupled through a friction bearing to an actuator for an electric monitor device associated with the control circuit for opening the latter when the monitor wheel is rotating below a predetermined speed greater than the said predetermined speed of the associated sensor wheel.
Inventors
- 👤 Jeffrey G Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:53
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/42; B60T8/36; B60T8/3615; B60T8/363; B60T8/3635
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
175 words
A device for sensing the change of speed of a movable member from a predetermined speed of movement, comprising a. a support, b. a rotary sensor wheel adapted to be mounted to engage the movable member and to be rotated by movement of the latter, c. a sensor wheel shaft journaled on the support and mounting the sensor wheel for rotation therewith, d. sensor means, e. sensor control means, f. sensor control actuator means mounted adjacent the control means and movable between positions which adjusts the control means to alternate conditions of operation, g. friction means mounting the actuator means on the sensor wheel shaft for movement to one of said positions by rotation of the shaft, and h. adjustable resilient means interengaging the support and actuator meAns for resiliently resisting rotation of the actuator means by the shaft to said one position until the shaft reaches a speed of rotation predetermined by adjustment of the resilient means, whereby to effect operation of the sensor means at various predetermined speeds of rotation of the shaft.
Claim 2
Independent Claim
175 words
A device for sensing the change of speed of a movable member from a predetermined speed of movement, comprising a. a support, b. a rotary sensor wheel adapted to be mounted to engage the movable member and to be rotated by movement of the latter, c. a sensor wheel shaft journaled on the support and mounting the sensor wheel for rotation therewith, d. sensor means, e. sensor control means, f. sensor control actuator means mounted adjacent the control means and movable between positions which adjusts the control means to alternate conditions of operation, g. friction means mounting the actuator means on the sensor wheel shaft for movement to one of said positions by rotation of the shaft, and h. adjustable resilient means interengaging the support and actuator meAns for resiliently resisting rotation of the actuator means by the shaft to said one position until the shaft reaches a speed of rotation predetermined by adjustment of the resilient means, whereby to effect operation of the sensor means at various predetermined speeds of rotation of the shaft.
Claim 3
Dependent Claim
51 words
The device of claim 1 wherein the friction means mounting the actuator means comprises friction bearing means interengaging the actuator means and the shaft, and the resilient means engages the actuator means for moving the latter to one of said positions when the shaft rotation is less than said predetermined speed.
Claim 4
Dependent Claim
12 words
The device of claim 1 wherein the sensing means comprises an alarm.
Claim 5
Dependent Claim
90 words
The device of claim 1 wherein the movable member is a rotary vehicle wheel provided with relatively movable brake members operable by a fluid pressure supplied through a fluid pressure conduit, and wherein the sensor means comprises a solenoid-operated valve in said conduit having an inlet communicating with the source of fluid pressure and an outlet communicating with the wheel brake, and operable upon activation of the solenoid to seal the inlet and outlet from each other and to vent the outlet to relieve fluid pressure at the wheel brake.
Claim 6
Dependent Claim
38 words
The device of claim 4 including a fluid pressure reservoir in the valve, and valve means operable by activation of the solenoid to communicate the outlet with the reservoir to receive therein fluid pressure from the wheel brake.
Claim 7
Dependent Claim
38 words
The device of claim 5 including fluid pressure responsive safety switch means communicating with the reservoir and arranged in the electric circuit of the solenoid to deactivate the latter at a predetermined elevated fluid pressure in the reservoir.
Claim 8
Dependent Claim
95 words
The device of claim 1 wherein the movable member is a rotary vehicle wheel provided with relatively movable brake members operable by fluid pressures applied through a fluid pressure conduit and wherein the sensor means comprises a. a solenoid-operated valve having an inlet and an outlet, and b. a source of volatile liquid connected to the valve inlet, c. the outlet communicating with the space between the relatively movable brake members, d. the valve being operable upon activation of the solenoid to dispense said liquid from the source into said space to relieve braking operation.
Claim 9
Dependent Claim
101 words
The device of claim 1 wherein the movable member is a rotary vehicle wheel provided with relatively movable brake members operable by fluid pressure supplied through a fluid pressure conduit, and including a. a monitor wheel adapted to be mounted on the vehicle for rolling engagement with the road, b. a monitor wheel shaft mounting the monitor wheel and rotatable therewith, and c. electric circuit control means associated with the said electric circuit and operable by rotation of the monitor wheel shaft at a predetermined speed greater than said predetermined speed of the sensor wheel shaft to deactivate said electric circuit.
Claim 10
Dependent Claim
103 words
The device of claim 8 wherein the electric circuit control means comprises a. electric monitor switch means in said electric circuit in series said sensor switch means, b. monitor switch actuator means mounted adjacent to the monitor switch means and movable between positions opening and closing said switch means, and c. means mounting the monitor switch actuator means on the monitor wheel shaft for movement by rotation of the latter to effect closing and opening of the circuit while the monitor wheel shaft rotates above and below, respectively, a predetermined speed greater than said predetermined speed of rotation of the sensor wheel shaft.
Claim 11
Dependent Claim
105 words
The device of claim 8 wherein the electric circuit control means comprises a. an electric solenoid including a coil having an electric circuit and an armature movable relative to the coil in proportion to the magnitude of electric potential applied to the coil, and b. voltage divider means in said electric circuit and having movable means engagiNg said monitor wheel shaft and movable by the latter to vary said electric potential in proportion to the speed of rotation of the monitor wheel shaft, c. said armature being releasably engageable with the sensor switch means to move the latter to adjust the opening and closing thereof.
Claim 12
Dependent Claim
61 words
The device of claim 10 including a. an electric wheel spin indicator having an electric circuit, and b. second sensor switch means in the electric circuit of the spin indicator and movable by the armature and sensor wheel shaft to complete said circuit and activate the indicator when an associated vehicle wheel rotates faster than the forward movement of the vehicle.
Claim 13
Dependent Claim
43 words
The device of claim 1 wherein a. the sensor means is electrically actuated, b. the control means is electric switch means in an electric circuit with the sensor means, and c. the actuator means is operable to open and close said switch means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |