US3633902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-bearing wheel accelerator for document-handling apparatus
Assignee: Unisys Corp
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Filing: 1970-06-17
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Granted: 1972-01-11
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Expires: 1990-06-17
Abstract
Abstract A soft periphery tire mounted on a fixed axle is suspended off a document track by jets of air. A document passing between the tire and the air jets is accelerated by the rotating tire while suspended from the document track by the air jets.
Inventors
- 👤 Dale S Worden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:56
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/22; B65H5/228; B65H3/00; B65H3/08; B65H3/0808; B65H3/0816; B65H5/06; B65H5/068; B65H2401/00; B65H2401/10; B65H2406/00; B65H2406/10; B65H2406/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
An air-bearing wheel accelerator for a document handling apparatus, comprising: a document track for transporting a singulated document therealong; an accelerator for accelerating said singulated document along said document track, said accelerator including: a wheel having a soft periphery in physical contact with said document track; means for rotating said wheel at a peripheral velocity greater than the velocity of said singulated document; air suspension means in said document track for forming an air bearing between the bottom periphery of said wheel and said document track and eliminating any physical contact and resulting resistance therebetween.
Claim 2
Dependent Claim
95 words
An air-bearing wheel accelerator for a document handling apparatus, comprising: a document track for transporting a singulated document therealong; an accelerator for accelerating said singulated document along said document track, said accelerator including: a wheel having a soft periphery in physical contact with said document track; means for rotating said wheel at a peripheral velocity greater than the velocity of said singulated document; air suspension means in said document track for forming an air bearing between the bottom periphery of said wheel and said document track and eliminating any physical contact and resulting resistance therebetween.
Claim 3
Dependent Claim
142 words
An air-bearing wheel accelerator for a document handling apparatus, comprising: a document track having a plurality of transport air jets emitted therefrom for suspending and transporting a singulated stream of documents therealong; an accelerator for accelerating said singulated documents along said document track, said accelerator including: a soft periphery tire in physical contact with said document track; means for rotating said tire at a peripheral velocity greater than the velocity of sAid singulated documents; air suspension means in said document track for forming an air bearing between the periphery of said tire and said document track and normally suspending the periphery of said tire off said document track; said air suspension means suspending an interposed document off said document track and against the periphery of said rotating tire for enabling said rotating tire to accelerate said interposed document along said document track.
Claim 4
Dependent Claim
142 words
An air-bearing wheel accelerator for a document handling apparatus, comprising: a document track having a plurality of transport air jets emitted therefrom for suspending and transporting a singulated stream of documents therealong; an accelerator for accelerating said singulated documents along said document track, said accelerator including: a soft periphery tire in physical contact with said document track; means for rotating said tire at a peripheral velocity greater than the velocity of sAid singulated documents; air suspension means in said document track for forming an air bearing between the periphery of said tire and said document track and normally suspending the periphery of said tire off said document track; said air suspension means suspending an interposed document off said document track and against the periphery of said rotating tire for enabling said rotating tire to accelerate said interposed document along said document track.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |