US4232860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper feeder
Assignee: Automecha Ltd
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Filing: 1978-10-20
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Granted: 1980-11-11
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Expires: 1998-10-20
Abstract
Abstract A top-load, bottom-feed friction feeder which includes a power source having connected thereto a main feed wheel and an eccentric wheel. A stone wheel is located adjacent the main feed wheel. The stone wheel can be adjusted and the feeder can continuously feed pieces which have a wide variety of sizes, stocks and orientations.
Inventors
- 👤 Frank H. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:44
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/02; B65H3/06; B65H3/063; B65H2404/00; B65H2404/10; B65H2404/11; B65H2404/111; B65H2404/1118; B65H2701/00; B65H2701/10; B65H2701/19; B65H2701/1916
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
240 words
A friction feeder comprising: a base; a feed tray on said base; a paper stop assembly releasably mounted on said base; a main feed wheel assembly mounted on said base adjacent said feed tray; a stone wheel assembly mounted on said base to be adjacent said feed wheel assembly for accepting paper from said feed tray to move such paper from said feed tray, said stone wheel assembly including a mounting shaft; an eccentric wheel assembly mounted on said base adjacent said feed tray and including a drive shaft mounted on said base and a wheel eccentrically mounted on said drive shaft to contact paper contained in said feed tray in a manner which lifts a portion of that paper from said feed tray to define a bulge in that paper and cause a leading edge of such paper to tilt with respect to a vertical orientation; a drive means connected to said eccentric wheel assembly and to said main feed wheel assembly for driving those two assemblies; and adjusting means for adjusting the location of said stone wheel assembly with respect to said main feed wheel assembly to define a gap between such assemblies of a predetermined size, said adjusting means including a crank and an adjusting rod on each end of said stone wheel mounting shaft and connecting means connecting said adjusting rods together so that rotation of one adjusting rod causes rotation of the other adjusting rod.
Claim 2
Dependent Claim
240 words
A friction feeder comprising: a base; a feed tray on said base; a paper stop assembly releasably mounted on said base; a main feed wheel assembly mounted on said base adjacent said feed tray; a stone wheel assembly mounted on said base to be adjacent said feed wheel assembly for accepting paper from said feed tray to move such paper from said feed tray, said stone wheel assembly including a mounting shaft; an eccentric wheel assembly mounted on said base adjacent said feed tray and including a drive shaft mounted on said base and a wheel eccentrically mounted on said drive shaft to contact paper contained in said feed tray in a manner which lifts a portion of that paper from said feed tray to define a bulge in that paper and cause a leading edge of such paper to tilt with respect to a vertical orientation; a drive means connected to said eccentric wheel assembly and to said main feed wheel assembly for driving those two assemblies; and adjusting means for adjusting the location of said stone wheel assembly with respect to said main feed wheel assembly to define a gap between such assemblies of a predetermined size, said adjusting means including a crank and an adjusting rod on each end of said stone wheel mounting shaft and connecting means connecting said adjusting rods together so that rotation of one adjusting rod causes rotation of the other adjusting rod.
Claim 3
Dependent Claim
22 words
The friction feeder of claim 1 wherein said adjusting means includes a crank connecting said adjusting rod to said stone wheel assembly.
Claim 4
Dependent Claim
20 words
The friction feeder of claim 2 wherein said stone wheel assembly further includes a wheel mounted on said mounting shaft.
Claim 5
Dependent Claim
25 words
The friction feeder of claim 2 wherein said crank is a bell crank and a spring attaches one leg of said crank to said base.
Claim 6
Dependent Claim
25 words
The friction feeder of claim 1 wherein said connecting means includes sprocket wheels on each adjusting rod and a chain connecting said sprocket wheels together.
Claim 7
Dependent Claim
19 words
The friction feeder of claim 5 wherein said paper stop includes tongues mounted in slots defined in said base.
Claim 8
Dependent Claim
54 words
The friction feeder of claim 1 wherein said paper stop has a portion thereof spaced from said tray to define a paper feed gap through which paper moves, said eccentric wheel causing a pile of papers to be jogged against said paper stop adjacent said paper feed gap during rotation of said eccentric wheel.
Claim 9
Dependent Claim
50 words
The friction feeder of claim 7 wherein a line passing through the centers of said main feed and stone wheel assemblies is at an angle with respect to the vertical so that a paper feed by said eccentric wheel assembly moves readily between said feed wheel and stone wheel assemblies.
Claim 10
Dependent Claim
14 words
The friction feeder of claim 1 wherein the feeder is a top-loading, bottom-feeding feeder.
Claim 11
Dependent Claim
14 words
The friction feeder of claim 1 wherein said drive means has a variable speed.
Claim 12
Dependent Claim
30 words
The friction feeder of claim 1 wherein said adjusting rods have threads on one end thereof and said cranks have threaded connections thereon for receiving said adjusting rod threaded ends.
Claim 13
Dependent Claim
13 words
The friction feeder of claim 1 wherein said feed tray includes movable sides.
Claim 14
Dependent Claim
18 words
The friction feeder of claim 1 further including a latch connecting said paper stop assembly to said base.
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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) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |