US3966108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inertia isolator
Assignee: Texas Instruments Inc
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Filing: 1974-03-11
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Granted: 1976-06-29
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Expires: 1994-03-11
Abstract
Abstract An inertia isolator is mounted on the frame of a web transport system between a drive roller and a supply reel on which web material is wound. A first relatively stiff member is mounted to the frame adjacent the drive roller and a second relatively stiff member is flexibly attached to the first member and positioned so that the web material is in slidable contact. The second member flexes in a direction to aid in unwinding the web when the drive roller is accelerated and flexes in the other direction when the drive roller is decelerated.
Inventors
- 👤 Alfred Kent Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:44
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/24; B65H23/00; B65H23/04; B65H23/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
In a web transport system having a frame, web material wound on a supply reel, and at least one drive roller for unwinding the web material from the supply reel, an inertia isolator, comprising: a. a first relatively stiff member fixedly mounted to the frame, adjacent the drive roller; b. a flexible member, attached to the first member, opposite the drive roller; and c. a second relatively stiff member attached to the flexible member, positioned adjacent the supply reel, and slidably engaging the web material for providing a flexing motion in a direction that tends to unwind the web material when the drive roller is accelerated and for providing a flexing motion in the opposite direction when the drive roller is decelerated.
Claim 2
Dependent Claim
122 words
In a web transport system having a frame, web material wound on a supply reel, and at least one drive roller for unwinding the web material from the supply reel, an inertia isolator, comprising: a. a first relatively stiff member fixedly mounted to the frame, adjacent the drive roller; b. a flexible member, attached to the first member, opposite the drive roller; and c. a second relatively stiff member attached to the flexible member, positioned adjacent the supply reel, and slidably engaging the web material for providing a flexing motion in a direction that tends to unwind the web material when the drive roller is accelerated and for providing a flexing motion in the opposite direction when the drive roller is decelerated.
Claim 3
Dependent Claim
32 words
The inertia isolator of claim 1 wherein the first relatively stiff member is arcuately formed to form a guide path for the web material between the first member and the drive roller.
Claim 4
Dependent Claim
37 words
The inertia isolator of claim 1 wherein the isolator is a relatively thin, unitary structure formed of resilient material, the flexible member having a small surface area compared with the areas of the first and second members.
Claim 5
Dependent Claim
37 words
The inertia isolator of claim 2 wherein the isolator is a relatively thin, unitary structure formed of resilient material, the flexible member having a small surface area compared with the areas of the first and second members.
Claim 6
Dependent Claim
24 words
The inertia isolator of claim 2 further comprising a web cleaning material affixed to the second member for engaging and cleaning the web material.
Claim 7
Dependent Claim
24 words
The inertia isolator of claim 4 further comprising a web cleaning material affixed to the second member for engaging and cleaning the web material.
Claim 8
Dependent Claim
42 words
The inertia isolator of claim 2 further comprising a pair of guide members, affixed orthogonally at opposite ends of the second member, positioned parallel to the direction of travel of the web material to restrict the lateral motion of the web material.
Claim 9
Dependent Claim
42 words
The inertia isolator of claim 3 further comprising a pair of guide members, affixed orthogonally at opposite ends of the second member, positioned parallel to the direction of travel of the web material to restrict the lateral motion of the web material.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |