US3963363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic control device
Assignee: Individual
•
Filing: 1974-03-04
•
Granted: 1976-06-15
•
Expires: 1994-03-04
Abstract
Abstract A pop up traffic control device stored in a cavity in the roadway when not in use and elevated to a predetermined height above the roadway by remote control when traffic control is required. The control device is attached to a follower which is engaged in the thread of a screw member. The screw member is caused to rotate by a remote signal thus causing the control member to be elevated.
Inventors
- 👤 David H. Roper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:21
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/576; E01F9/594; E01F9/60; E01F9/623; E01F9/646
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A traffic control device retractable into an opening in a roadway comprising: resilient deformable marker means disposed in said opening for movement in and out of said opening; rotary motor power means having an output shaft and mounted in said opening; rotary actuator means connected to the shaft of said motor means and further comprising a screw means rotated by said power means and a follower means attached to said marker means and in engagement with threads on said screw means whereby rotation of said screw means causes said marker means to move into and out of the opening; and control means operatively related to said motor power means for controlling said power means.
Claim 2
Dependent Claim
114 words
A traffic control device retractable into an opening in a roadway comprising: resilient deformable marker means disposed in said opening for movement in and out of said opening; rotary motor power means having an output shaft and mounted in said opening; rotary actuator means connected to the shaft of said motor means and further comprising a screw means rotated by said power means and a follower means attached to said marker means and in engagement with threads on said screw means whereby rotation of said screw means causes said marker means to move into and out of the opening; and control means operatively related to said motor power means for controlling said power means.
Claim 3
Dependent Claim
168 words
A traffic control device retractable into an opening in a roadway comprising: resilient deformable hollow marker means having a longitudinal axis generally orthogonal to the plane of the roadway surface and disposed in said opening for movement in and out of said opening; rotary motor power means having an output shaft and mounted in said opening; rotary actuator means connected to the output shaft of said power means for rotation therewith, said actuator means comprising a cylindrical screw means having a longitudinal axis, said screw means being arranged in the hollow interior of said marker means such that its longitudinal axis is generally coincident with the longitudinal axis of said marker means and rotated by said power means; follower means attached to said marker means and in engagement with the threads on said screw means whereby rotation of said screw means causes said marker means to move into and out of the opening; and control means operatively related to said motor power means for controlling said power means.
Claim 4
Dependent Claim
168 words
A traffic control device retractable into an opening in a roadway comprising: resilient deformable hollow marker means having a longitudinal axis generally orthogonal to the plane of the roadway surface and disposed in said opening for movement in and out of said opening; rotary motor power means having an output shaft and mounted in said opening; rotary actuator means connected to the output shaft of said power means for rotation therewith, said actuator means comprising a cylindrical screw means having a longitudinal axis, said screw means being arranged in the hollow interior of said marker means such that its longitudinal axis is generally coincident with the longitudinal axis of said marker means and rotated by said power means; follower means attached to said marker means and in engagement with the threads on said screw means whereby rotation of said screw means causes said marker means to move into and out of the opening; and control means operatively related to said motor power means for controlling said power means.
Claim 5
Dependent Claim
53 words
The traffic control device of claim 2 and further comprising guide means attached to the interior wall of the opening in the roadway and operably connected to the exterior surface of said marker means for guiding said marker means in and out of said opening and preventing rotation thereof about its longitudinal axis.
Claim 6
Dependent Claim
16 words
The traffic control device of claim 3 wherein said rotary motor means is an electric motor.
Claim 7
Dependent Claim
16 words
The traffic control device of claim 3 wherein the rotary motor means is a hydraulic motor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |