US3596848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web feeding mechanisms
Assignee: Individual
•
Filing: 1969-10-13
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Granted: 1971-08-03
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Expires: 1989-10-13
Abstract
Abstract A web is fed from a reel located on a table about a dancing roller which varies position with tension on the web. The reel is supported on a cushion of air passed through a plurality of ball bearing spring loaded normally closed nozzles on the table. The air pressure is controlled by a butterfly valve operated by the dancing roller to vary the air pressure and, therefore, the air cushion support as a function of the tension on the web.
Inventors
- 👤 Denis E E French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:51
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/06; B65H23/063; B65H16/00; B65H16/02; B65H23/24; B65H23/32; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/417; B65H2301/4171; B65H2301/4174
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
96 words
A web feeding mechanism comprising in combination, a web reel, a table supporting the web reel, means including an air supply for providing a cushion of air between the supporting table and the web reel, a movable element, means feeding the web about said movable element to move it as a function of the tension on the web, and an air supply valve controlled by the position of said movable element to control passage of air from said air supply to said table to vary the cushion of air between the table and the web reel.
Claim 2
Dependent Claim
96 words
A web feeding mechanism comprising in combination, a web reel, a table supporting the web reel, means including an air supply for providing a cushion of air between the supporting table and the web reel, a movable element, means feeding the web about said movable element to move it as a function of the tension on the web, and an air supply valve controlled by the position of said movable element to control passage of air from said air supply to said table to vary the cushion of air between the table and the web reel.
Claim 3
Dependent Claim
30 words
A mechanism according to claim 1, wherein the web reel contains paper business forms and including a machine for processing business forms receiving the web passed from said movable element.
Claim 4
Dependent Claim
31 words
A mechanism according to claim 1, wherein the web axis is vertical, including means turning the plane of the feed of the web from a vertical plane to a horizontal plane.
Claim 5
Dependent Claim
29 words
A mechanism according to claim 1, including a lever mechanism, wherein the movable element is a dancing roller mechanically coupled to the air supply valve by said lever mechanism.
Claim 6
Dependent Claim
30 words
A mechanism according to claim 1, wherein said table embodies an air passage, and air nozzles are provided in the surface of said table at the position supporting said reel.
Claim 7
Dependent Claim
28 words
A mechanism according to claim 5, wherein the nozzles comprise normally closed spring loaded valves and means opening the valves by the passage of the reel over them.
Claim 8
Dependent Claim
14 words
A mechanism according to claim 6, wherein the spring loaded valves comprise ball valves.
Claim 9
Dependent Claim
21 words
A mechanism according to claim 1, wherein the table embodies an annular groove to which the air is supplied under pressure.
Claim 10
Dependent Claim
15 words
A mechanism according to claim 1, including means for positioning said reel on the table.
Claim 11
Dependent Claim
18 words
A mechanism according to claim 9, wherein the reel positioning mechanism includes a spindle rotatably mounted in bearings.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |