US3583543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passenger conveyor
Assignee: Individual
•
Filing: 1968-12-03
•
Granted: 1971-06-08
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Expires: 1988-12-03
Abstract
Abstract A passenger conveyor having a high speed central portion and initial and terminal portions of gradually building up and slowing down speeds including a means for effecting this speed variation comprising articulated parallelogram frame members which are adjustable, according to the spacing of guides along which they travel, to thereby vary the relative positioning of overlapping adjacent plates forming the passenger supporting surface.
Inventors
- 👤 Attilio Angioletti
- 👤 Sergio Marocco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:37
CPC Classifications
B; B66; B66B; B66B21/00; B66B21/10; B66B21/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A passenger conveyor having an initial portion of increasing speed, a central high-speed portion, and a terminal portion of decreasing speed comprising a plurality of adjacent plates forming a passenger supporting surface, a plurality of interconnected articulated parallelogram means to which said plates are hinged, support frame means, guide means on said support frame means, and drive means to move said plates along said support frame means, said articulated parallelogram means engaging with said guide means to effect a relative sliding movement between adjacent plates thus effecting the increasing and decreasing speed at said initial and terminal portions, respectively.
Claim 2
Dependent Claim
99 words
A passenger conveyor having an initial portion of increasing speed, a central high-speed portion, and a terminal portion of decreasing speed comprising a plurality of adjacent plates forming a passenger supporting surface, a plurality of interconnected articulated parallelogram means to which said plates are hinged, support frame means, guide means on said support frame means, and drive means to move said plates along said support frame means, said articulated parallelogram means engaging with said guide means to effect a relative sliding movement between adjacent plates thus effecting the increasing and decreasing speed at said initial and terminal portions, respectively.
Claim 3
Dependent Claim
106 words
A passenger conveyor according to claim 1, in which said articulated parallelogram means are substantially vertically disposed on each of the two sides of said plates parallel to the direction of motion of said conveyor, each said parallelogram means having first and second pairs of opposed hinges, each hinge of said first pair being attached to one of an adjacent paIr of plates and each hinge of said second pair engaging with said guide means, whereby the relative movement of said second pair of hinges in said guides is transmitted to said plates through said articulated parallelogram means to effect the sliding movement of said plates.
Claim 4
Dependent Claim
101 words
A passenger conveyor according to claim 1, in which said articulated parallelogram means are substantially horizontally disposed beneath said plates, each said articulated parallelogram means having first and second pairs of opposed hinges, rod means depending from the bottom of the leading edge of each said plate, said rod means of adjacent plates engaging with said first pair of hinges, each hinge of said second pair of hinges engaging in said guide means whereby the relative movement of said second pair of hinges in said guides is transmitted through said articulated parallelogram means to effect the sliding movement of said plates.
Claim 5
Dependent Claim
30 words
A passenger conveyor according to claim 1, further comprising a dragging band forming said central high-speed portion, means on said band for successively engaging each of said plurality of plates.
Claim 6
Dependent Claim
27 words
A passenger conveyor according to claim 1, further comprising roller means mounted on the side edges of each of said plates to facilitate the sliding movement thereof.
Claim 7
Dependent Claim
22 words
A passenger conveyor according to claim 1, further comprising means forming a nonskid surface on the passenger supporting surface of said plates.
Claim 8
Dependent Claim
46 words
A passenger conveyor according to claim 1, further comprising a plurality of parallel grooves formed in each surface of said plates forming ribs therebetween, said grooves and ribs having such dimensions that they readily interfit with the grooves and ribs of each of the adjacent plates.
Claim 9
Dependent Claim
18 words
A passenger conveyor according to claim 1, further comprising handrail means connected to and moving with said plates.
Claim 10
Dependent Claim
45 words
A passenger conveyor according to claim 1, further comprising return means including rotatable cylindrical members at the free ends of said initial and terminal portions, under said support frame means for supporting said plates as they move from the terminal portion to the initial portion.
Claim 11
Dependent Claim
48 words
A passenger conveyor according to claim 1, in which said plates are pivotally connected to said articulated parallelogram means to thereby lie in a substantially horizontal position during travel from the initial to the terminal portions and to depend substantially vertically during return travel to said initial position.
References Cited (Backward Citations)
US1412896A
Cited
FR724088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |