US3971325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle conveyor
Assignee: Individual
•
Filing: 1975-02-28
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Granted: 1976-07-27
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Expires: 1995-02-28
Abstract
Abstract A conveyor for advancing a vehicle along a desired path by means of a wheel contacting pusher assembly. The conveyor base is adapted for placement on an unaltered concrete floor with abutting conveyor base sections, variable in number, being joined at the installation site to provide the necessary length. A continuous chain is confined within upwardly opening guideways with each pusher assembly coupled to a chain component in a manner permitting upward displacement of the pusher assembly about an axis parallel to the chain centerline. Replaceable wear components are associated with the guideways and each pusher assembly. Each assembly includes leading and trailing rollers imparting operational loads to the conveyor base while an intermediate raised roller bears against the vehicle rotating wheel.
Inventors
- 👤 Lyle B. Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:53
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/02; B60; B60S; B60S3/00; B60S3/004
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
205 words
A vehicle conveyor adapted for placement on a continuous floor surface for moving driverless vehicles along a desired path, said conveyor comprising, a base comprised of interconnected plate members for placement on the floor surface, an endless roller chain including upwardly disposed side components, said chain having runs lengthwise disposed on said base, upwardly opening chain guideways in place on said interconnected plate members of the base with each of said guideways in communication with a remaining guideway and confining said chain runs for advancement along a desired course, said guideways open at their upper extremeties, and pusher assemblies disposed at points along said chain, each independently engagable with the wheel of a vehicle and including, a main body including an upright portion and an upper offset portion, cooperating pivot means carried by said upper offset portion of the main body and the upper surface of an upwardly disposed side component of the chain permitting displacement of the pusher assembly body about a horizontal axis of the cooperating pivot means disposed parallel to and above the chain, and multiple rollers carried by said main body transferring vehicle imparted loads to said base, said multiple rollers also displaceable with said main body about said horizontal axis.
Claim 2
Dependent Claim
205 words
A vehicle conveyor adapted for placement on a continuous floor surface for moving driverless vehicles along a desired path, said conveyor comprising, a base comprised of interconnected plate members for placement on the floor surface, an endless roller chain including upwardly disposed side components, said chain having runs lengthwise disposed on said base, upwardly opening chain guideways in place on said interconnected plate members of the base with each of said guideways in communication with a remaining guideway and confining said chain runs for advancement along a desired course, said guideways open at their upper extremeties, and pusher assemblies disposed at points along said chain, each independently engagable with the wheel of a vehicle and including, a main body including an upright portion and an upper offset portion, cooperating pivot means carried by said upper offset portion of the main body and the upper surface of an upwardly disposed side component of the chain permitting displacement of the pusher assembly body about a horizontal axis of the cooperating pivot means disposed parallel to and above the chain, and multiple rollers carried by said main body transferring vehicle imparted loads to said base, said multiple rollers also displaceable with said main body about said horizontal axis.
Claim 3
Dependent Claim
29 words
The vehicle conveyor as claimed in claim 1 wherein some of said chain guideways additionally function to support the main body of each pusher assembly against laterally directed loads.
Claim 4
Dependent Claim
21 words
The vehicle conveyor claimed in claim 2 additionally including friction reducing means interposed between said main body and the chain guideway.
Claim 5
Dependent Claim
25 words
The vehicle conveyor claimed in claim 3 wherein said offset upper portion of the main body of the pusher assembly terminates outwardly above the guideway.
Claim 6
Dependent Claim
30 words
The vehicle conveyor claimed in claim 1 wherein some of said guideways support lengthwise extending tubular elements for engagement with remaining tubular elements on adjacent guideways for conveyor alignment purposes.
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) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |