US3748782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic flow controller
Assignee: Individual
•
Filing: 1972-11-14
•
Granted: 1973-07-31
•
Expires: 1992-11-14
Abstract
Abstract A traffic flow controller including a barrier coupled to a support for moving between a raised position and a lowered position in response to an automotive vehicle driving over the barrier. The barrier is biased to the raised position, and control means stops the barrier at an intermediate position after each alternate depression of the barrier to the lowered position. Thus, depression of the barrier to the lowered position by the front wheels of an automotive vehicle causes the barrier to rise to the intermediate position, and depression of the barrier to the lowered position by the rear wheels of the vehicle causes the barrier to rise to the fully raised position.
Inventors
- 👤 D Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/10; E01F13/105
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
125 words
A traffic flow controller comprising a ground level support, barrier means coupled to said support for moving between a raised position and a lowered position in response to an automotive vehicle driving over said barrier means, biasing means for urging said barrier means to said raised position, and control means coupled to said barrier means for stopping the same at an intermediate position after each alternate depression of said barrier means to said lowered position, whereby after depression of said barrier means to said lowered position by the front wheels of an automotive vehicle, said barrier means rises to said intermediate position, and after depression thereof to said lowered position by the rear wheels of the vehicle, said barrier means rises to said raised position.
Claim 2
Dependent Claim
125 words
A traffic flow controller comprising a ground level support, barrier means coupled to said support for moving between a raised position and a lowered position in response to an automotive vehicle driving over said barrier means, biasing means for urging said barrier means to said raised position, and control means coupled to said barrier means for stopping the same at an intermediate position after each alternate depression of said barrier means to said lowered position, whereby after depression of said barrier means to said lowered position by the front wheels of an automotive vehicle, said barrier means rises to said intermediate position, and after depression thereof to said lowered position by the rear wheels of the vehicle, said barrier means rises to said raised position.
Claim 3
Dependent Claim
19 words
A traffic flow controller as claimed in claim 1 in which said barrier means includes a plurality of plates.
Claim 4
Dependent Claim
33 words
A traffic flow controller as claimed in claim 2 in which three of said plates are located side by side and parallel to each other providing a middle plate and two side plates.
Claim 5
Dependent Claim
37 words
A traffic flow controller as claimed in claim 3 in which said side plates have projections abutting said middle plate so that each side plate can be depressed independently or all three plates can be depressed together.
Claim 6
Dependent Claim
32 words
A traffic flow controller as claimed in claim 4 in which said biasing means is connected to each of said side plates and said control means is connected to said middle plate.
Claim 7
Dependent Claim
71 words
A traffic flow controller as claimed in claim 1 in which said control means includes a rod, a rotatable slide member movable axially on said rod, and stop mean for controlling the movement of said slide member, one of said rod and said slide member having slanting portions engageable with said stop means to rotate said slide member, and recessed portions engageable with said stop means to position said barrier means.
Claim 8
Dependent Claim
37 words
A traffic flow controller as claimed in claim 6 in which alternate ones of said recessed portions position said barrier means at said intermediate position and other recessed portions position said barrier means at said raised position.
Claim 9
Dependent Claim
123 words
A traffic flow controller comprising a support, barrier means for controlling traffic flow having a movable end, and a fixed end hinged to said support, said barrier means having a generally horizontal lowered position and an angular position in which said free end is raised above said support, means biasing said barrier means for normally maintaining the same in said raised position and yieldable to allow movement of said movable end to said lowered position when a vehicle drives over said barrier means, and control means coupled to said barrier means for controlling the movement thereof to stop said barrier means at an intermediate angular position between said raised and lowered positions after alternate depressions of said barrier means to said lowered position.
Claim 10
Dependent Claim
123 words
A traffic flow controller comprising a support, barrier means for controlling traffic flow having a movable end, and a fixed end hinged to said support, said barrier means having a generally horizontal lowered position and an angular position in which said free end is raised above said support, means biasing said barrier means for normally maintaining the same in said raised position and yieldable to allow movement of said movable end to said lowered position when a vehicle drives over said barrier means, and control means coupled to said barrier means for controlling the movement thereof to stop said barrier means at an intermediate angular position between said raised and lowered positions after alternate depressions of said barrier means to said lowered position.
Claim 11
Dependent Claim
28 words
The traffic flow controller as claimed in claim 8 in which said barrier means comprises three barrier members including a middle barrier member and two side barrier members.
Claim 12
Dependent Claim
40 words
The traffic flow controller as claimed in claim 9 in which said side barrier members have portions abutting said middle barrier member so that each side member can be lowered independently and all three barrier members can be lowered together.
Claim 13
Dependent Claim
53 words
The traffic flow contoller as claimed in claim 10 in which said biasing means is connected to each of said side barrier members and said control means is connected to said middle barrier member, and the control means connected to the center barrier acts througH the center barrier to control the side barriers.
Claim 14
Dependent Claim
78 words
The traffic flow controller as claimed in claim 11 in which said control means includes a rod, a slide movable axially on said rod and rotatable in response to depression of said middle barrier member, and stop means for controlling the movement of said slide, one of said slide and said rod having slanting portions engageable with said stop means to rotate said slide and recessed portions engageable with said stop means to position said middle barrier member.
Claim 15
Dependent Claim
39 words
The traffic flow controller as claimed in claim 12 in which alternate ones of said recessed portions position said middle barrier member at said intermediate position and other recessed portions position said middle barrier member at said raised position.
Claim 16
Dependent Claim
16 words
The traffic flow controller as claimed in claim 13 in which said barrier members comprise plates.
References Cited (Backward Citations)
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |