Patent US4818137A successfully refreshed from Google Patents.
US4818137A
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Terrorist vehicle arresting system
Assignee: Flexible Barricades Inc
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Filing: 1987-12-04
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Granted: 1989-04-04
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Expires: 2007-12-04
Abstract
Abstract A terrorist vehicle arresting system includes a rigid immovable crash barrier positioned at one side of a driveway and a turnstile having a circular sector positioned at the other side of the driveway in such a manner that upon entrance of an unauthorized vehicle through a corresponding gate across the entrance of the driveway, means are provided to rotate the turnstile such that the turnstile deflects the vehicle into the crash barrier. In a further embodiment, two opposing turnstiles are used to wedge an oncoming vehicle therebetween. In one embodiment, the terrorist vehicle arresting system includes a rope-barrier attached to an elevating and lowering mechanism on one side of the driveway and is attached at its other end to the turnstile, such that upon the unauthorized attempted entrance and the striking of the rope-barrier, the turnstile is rotated by the rope-barrier into the driveway, diverting the vehicle into the crash-barrier.
Inventors
- 👤 Alexander M. Gorlov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:21
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/12; E01F13/04; E01F13/044; E01F13/046; E01F13/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
97 words
A terrorist vehicle arresting system for precluding the onward travel of an encroaching vehicle through a gateway down a driveway comprising: a turnstile having a sector and positioned to one side of said driveway, said sector being of a size which when said turnstile is rotated occludes at least a portion of said driveway adjacent said gateway; an immovable crash barrier positioned at the other side of said driveway adjacent said gateway; and means for rotating said turnstile sector into said driveway upon approach of an encroaching vehicle, thereby to deflect said vehicle into said crash barrier.
Claim 2
Dependent Claim
97 words
A terrorist vehicle arresting system for precluding the onward travel of an encroaching vehicle through a gateway down a driveway comprising: a turnstile having a sector and positioned to one side of said driveway, said sector being of a size which when said turnstile is rotated occludes at least a portion of said driveway adjacent said gateway; an immovable crash barrier positioned at the other side of said driveway adjacent said gateway; and means for rotating said turnstile sector into said driveway upon approach of an encroaching vehicle, thereby to deflect said vehicle into said crash barrier.
Claim 3
Dependent Claim
39 words
The terrorist vehicle arresting system of claim 1 wherein said turnstile includes a central hub and spokes connecting said central hub to said sector, said spokes projecting outwardly of said sector and being adapted to engage said encroaching vehicle.
Claim 4
Dependent Claim
24 words
The terrorist vehicle arresting system of claim 1 wherein said turnstile rotating means includes motor-power activating means for rotating said turnstile into said driveway.
Claim 5
Dependent Claim
38 words
The terrorist vehicle arresting system of claim 1 and further including means defining a zone about said driveway which, when a vehicle of an authorized nature is within said zone, said means for rotating said turnstile are inactivated.
Claim 6
Dependent Claim
17 words
The terrorist vehicle arresting system of claim 1 wherein said immovable crash barrier includes a bollard wall.
Claim 7
Dependent Claim
27 words
The terrorist vehicle arresting system of claim 1 wherein said immovable crash barrier includes a bollard wall having a jogged portion thereof to provide said crash barrier.
Claim 8
Dependent Claim
42 words
The terrorist vehicle arresting system of claim 1 wherein said turnstile rotating means includes a barrier cable attached at one end to said turnstile and at another end thereof to a position at the opposite side of said driveway from said turnstile.
Claim 9
Dependent Claim
19 words
The terrorist vehicle arresting system of claim 7 wherein said barrier cable includes means for sensing the severing thereof.
Claim 10
Dependent Claim
39 words
The terrorist vehicle arresting system of claim 7 wherein said system includes elevator means at said other side of said driveway for raising said barrier cable, said other end of said barrier cable being secured to said elevator means.
Claim 11
Dependent Claim
32 words
The terrorist vehicle arresting system of claim 9 wherein said elevator means includes means for moving said other end of said barrier cable from a ground level position to a raised position.
Claim 12
Dependent Claim
17 words
The terrorist vehicle arresting system of claim 10 wherein said elevator means includes a lead-power screw arrangement.
Claim 13
Dependent Claim
17 words
The terrorist vehicle arresting system of claim 10 wherein said elevator means includes a chain drive system.
Claim 14
Dependent Claim
70 words
The terrorist vehicle arresting system of claim 10 wherein said elevator means includes means for moving said other end of said barrier cable from a ground position to an upward position along a slant, said slant being away from said turnstile such that upon the raising of said cable, said cable is made taut and is in a position to engage said encroaching vehicle as it comes through said gateway.
Claim 15
Dependent Claim
13 words
The terrorist vehicle arresting system of claim 10 wherein said cable is weighted.
Claim 16
Dependent Claim
21 words
The terrorist vehicle arresting system of claim 14 wherein said weighting system includes weights disposed along the length of said cable.
Claim 17
Dependent Claim
49 words
The terrorist vehicle arresting system of claim 14 wherein said weighting system includes a pivoted arm having a pulley at the non-pivoted end thereof, with the cable passing through said pulley and with the weight of said arm pulling said cable to the ground upon lack of tension thereon.
Claim 18
Dependent Claim
29 words
The terrorist vehicle arresting system of claim 10 and further including a channel in said driveway adapted to receive said cable when said cable is in a lowered position.
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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) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |