US4299321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving walkway
Assignee: Individual
•
Filing: 1979-11-29
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Granted: 1981-11-10
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Expires: 1999-11-29
Abstract
Abstract The present invention utilizes a continuously moving street or road formed from a continuous chain of cars having flexible couplings therebetween. The upper surface of the moving conveyor is at approximately the same level as the supporting surface along the track which carries the conveyor, so that persons may step onto the conveyor without having to step up or down. The running street or road can be driven continuously by internal combustion engines, electricity, or other conventional drive means for vehicles. The speed of the road may be adjusted so as to maximize safety and so as to make it easy for persons to step onto the moving conveyor. Fans or cooling systems are provided below the cars to cool the air beneath the cars caused by continuous running. The spaces between the cars are covered by elastic support members.
Inventors
- 👤 Samuel S. Hermawan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:00
CPC Classifications
B; B66; B66B; B66B21/00; B66B21/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
276 words
A personnel conveyor comprising: a continuous track comprising in cross section a pair of vertical sidewalls and a bottom wall extending between the lower edges of said sidewalls, each of said sidewalls having at its upper edge a lip flange extending inwardly toward the longitudinal centerline of said track; a pair of spaced apart parallel rails mounted on said bottom wall and extending longitudinally along said track; a plurality of cars connected together in end to end relation, each of said cars having supporting wheels in retentive engagement with said rails for rolling along the length thereof, a horizontal platform and frame means connecting said horizontal platform to said supporting wheels for holding said horizontal platform in a position wherein the lateral edges protrude below said lip flanges of said sidewalls in close spaced relation thereto; a horizontal supporting surface extending from each of said lip flanges in a lateral direction away from the longitudinal centerline of said track, connecting means connecting each of said cars in end to end relation along the entire length of said continuous track whereby said cars form an endless conveyor; a flexible flat horizontal support member at each juncture between said cars, said support member being connected to the adjoining ends of one pair of said cars and forming a smooth continuation of the upper horizontal surfaces of said platforms whereby said platforms and said horizontal support members together form a continuous horizontal surface along the entire length of said track; and power means for moving said cars along said track, air ventilation means being in communication with said track below said platform for introducing cooling air to said track.
Claim 2
Dependent Claim
276 words
A personnel conveyor comprising: a continuous track comprising in cross section a pair of vertical sidewalls and a bottom wall extending between the lower edges of said sidewalls, each of said sidewalls having at its upper edge a lip flange extending inwardly toward the longitudinal centerline of said track; a pair of spaced apart parallel rails mounted on said bottom wall and extending longitudinally along said track; a plurality of cars connected together in end to end relation, each of said cars having supporting wheels in retentive engagement with said rails for rolling along the length thereof, a horizontal platform and frame means connecting said horizontal platform to said supporting wheels for holding said horizontal platform in a position wherein the lateral edges protrude below said lip flanges of said sidewalls in close spaced relation thereto; a horizontal supporting surface extending from each of said lip flanges in a lateral direction away from the longitudinal centerline of said track, connecting means connecting each of said cars in end to end relation along the entire length of said continuous track whereby said cars form an endless conveyor; a flexible flat horizontal support member at each juncture between said cars, said support member being connected to the adjoining ends of one pair of said cars and forming a smooth continuation of the upper horizontal surfaces of said platforms whereby said platforms and said horizontal support members together form a continuous horizontal surface along the entire length of said track; and power means for moving said cars along said track, air ventilation means being in communication with said track below said platform for introducing cooling air to said track.
Claim 3
Dependent Claim
25 words
A personnel conveyor according to claim 1 wherein a plurality of handrails are attached to said platforms and extend upwardly therefrom for grasping by passengers.
Claim 4
Dependent Claim
20 words
A personnel carrier according to claim 2 wherein the upper surface of said platform is covered with a non-slip material.
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) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |