Patent US3617009A successfully refreshed from Google Patents.
US3617009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn package pressure controller for yarn winding apparatus
Assignee: MILINA Inc A CORP OF RI
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Filing: 1969-09-02
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Granted: 1971-11-02
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Expires: 1989-09-02
Abstract
Abstract A closed-loop servosystem for a yarn winder to maintain a controlled preselected transverse force on the surface of the yarn package. The preselected force is maintained by a springloaded damped roller or button guide. The small perturbations in the position of this same roller or button guide are simultaneously used to control the pneumatic positioning of the roller with respect to the winding spindle during the package build.
Inventors
- 👤 John B Lawson
- 👤 Stephen C Dangel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:22
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/36; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
221 words
In a yarn package winder having a traverse frame and spindle means for winding a yarn package, and means providing for relative movement between said spindle means and said traverse frame as a yarn package builds in said winder, the improvement comprising: a. movable contacting means mounted in said traverse frame to yield in response to yarn package buildup when said traverse frame and said spindle means are positioned so that said movable contacting means contacts said package; b. adjustable means connected to said contacting means for adjusting the force exerted by said contacting means against the package being wound; and c. positioning means interconnecting said spindle means and said traverse frame and coacting with said adjustable means to control the relative position of said spindle means and said traverse frame in response to the yielding movement of said contacting means; said positioning means comprising a pneumatic system having a piston and cylinder the relative position of which determines the relative position of said spindle means and said traverse frame, said cylinder being mounted in said winder and being normally continuously pressurized during operation of said winder, and a bleed line connecting said cylinder to a valve, and means connected to said valve and said contacting means to operate said valve in response to the yielding movement of said contacting means.
Claim 2
Dependent Claim
221 words
In a yarn package winder having a traverse frame and spindle means for winding a yarn package, and means providing for relative movement between said spindle means and said traverse frame as a yarn package builds in said winder, the improvement comprising: a. movable contacting means mounted in said traverse frame to yield in response to yarn package buildup when said traverse frame and said spindle means are positioned so that said movable contacting means contacts said package; b. adjustable means connected to said contacting means for adjusting the force exerted by said contacting means against the package being wound; and c. positioning means interconnecting said spindle means and said traverse frame and coacting with said adjustable means to control the relative position of said spindle means and said traverse frame in response to the yielding movement of said contacting means; said positioning means comprising a pneumatic system having a piston and cylinder the relative position of which determines the relative position of said spindle means and said traverse frame, said cylinder being mounted in said winder and being normally continuously pressurized during operation of said winder, and a bleed line connecting said cylinder to a valve, and means connected to said valve and said contacting means to operate said valve in response to the yielding movement of said contacting means.
Claim 3
Dependent Claim
27 words
The invention of claim 1 wherein said contacting means is a Button guide supported at at least one end, said support being pivotally mounted to said winder.
Claim 4
Dependent Claim
24 words
The invention of claim 2 wherein said adjustable means comprises an adjustable spring and linkage means connecting said adjustable spring to said button guide.
Claim 5
Dependent Claim
87 words
The invention of claim 1 wherein said contacting means comprises a roller supported at at least one end for a freely running condition and positioned substantially on a parallel axis with said package; said roller being mounted within a housing; pivotal mountings connected to said housing for pivotally mounting said housing in said winder, said roller being positioned eccentrically to said pivotal mountings of said housing whereby said roller and said housing will yield about the pivotal mountings of said housing in response to yarn package buildup.
Claim 6
Dependent Claim
23 words
The invention of claim 4 wherein said adjustable means comprises an adjustable spring and linkage means connecting said adjustable spring to said housing.
Claim 7
Dependent Claim
42 words
The invention of claim 1 wherein a damping means is connected to said adjustable means to dampen the yielding movement of said contacting means; said damping means comprising a dashpot means and linkage means connecting said dashpot means to said contacting means.
Claim 8
Dependent Claim
35 words
The invention of claim 6 wherein said adjustable means comprises an adjustable spring and linkage means connecting said spring to said contacting means to counteract the force exerted by said package against said contacting means.
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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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |