US4084434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining denier of yarn
Assignee: EIDP Inc
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Filing: 1977-03-29
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Granted: 1978-04-18
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Expires: 1997-03-29
Abstract
Abstract In an apparatus for continuous draw-off of yarn from a package at a measured rate and under regulated tension, the yarn can either be passed to a waste receptacle for a predetermined length of time or can be metered to a scale for subsequent determination of yarn weight per unit length (denier). Diversion of the running yarn from one path to the other is achieved without affecting yarn draw-off rates and tensions.
Inventors
- 👤 Lewis Charles Goodrich
- 👤 Theron Robert Holt
- 👤 Joseph Cyril Osborne
- 👤 Donald Kirk Pusey
- 👤 James William Roxlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:26
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/36; G01N33/365
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
In an apparatus for determining denier of yarn that includes a source of supply of said yarn, a scale for weighing a measured length of said yarn, and a transport system for measuring and transferring said measured length of yarn from said source of supply to said scale, a yarn diverter to permit stripping of said source of supply to a waste receptacle and transferring said measured length of yarn to said scale in a continuous operation, said yarn diverter comprising: a block positioned between said transport system, said waste receptacle and said scale, said block having a through passage aligned with said transport system and said waste receptacle and a branch passage leading from an intermediate location on said through passage toward said scale, said through passage having inlet and outlet ends; means for cutting said yarn between said intermediate location and said outlet end; and means for aspirating said through passage both at its inlet and outlet end and said branch passage at its outlet end according to a preselected operating mode that provides for directing said yarn to said waste receptacle and then to said scale without stopping movement of said yarn.
Claim 2
Dependent Claim
195 words
In an apparatus for determining denier of yarn that includes a source of supply of said yarn, a scale for weighing a measured length of said yarn, and a transport system for measuring and transferring said measured length of yarn from said source of supply to said scale, a yarn diverter to permit stripping of said source of supply to a waste receptacle and transferring said measured length of yarn to said scale in a continuous operation, said yarn diverter comprising: a block positioned between said transport system, said waste receptacle and said scale, said block having a through passage aligned with said transport system and said waste receptacle and a branch passage leading from an intermediate location on said through passage toward said scale, said through passage having inlet and outlet ends; means for cutting said yarn between said intermediate location and said outlet end; and means for aspirating said through passage both at its inlet and outlet end and said branch passage at its outlet end according to a preselected operating mode that provides for directing said yarn to said waste receptacle and then to said scale without stopping movement of said yarn.
Claim 3
Dependent Claim
25 words
The apparatus as defined in claim 1, including a yarn detector located between said intermediate location on said through passage and said inlet end thereof.
Claim 4
Dependent Claim
37 words
The apparatus as defined in claim 1 including a tensioning device located between said source of supply and said transport system, said tensioning device applying a preselected tension to said yarn during transport of said measured length.
Claim 5
Dependent Claim
21 words
The apparatus as defined in claim 3 including a yarn cutter located between the source of supply and said tensioning device.
References Cited (Backward Citations)
US3820430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |