US3788138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile-testing apparatus for measuring the cross-section of yarns rovings and slivers and particularly for detecting fluctuations in cross-section
Assignee: Zellweger Uster AG
•
Filing: 1971-08-27
•
Granted: 1974-01-29
•
Expires: 1991-08-27
Abstract
Abstract In a textile testing apparatus, a rocker arm is provided which is pivotable about a pivot point between a conveying point and a testing point and a yarn gripper is disposed on one end of the rocker arm for selectively grasping the yarn. A testing arrangement is provided at the testing point having a plurality of spaced test devices each relating to different ranges of yarn sizes and guide means adjustable as to position for guiding the yarn to a selected test device.
Inventors
- 👤 E Heusser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:24
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/36; G01N33/365
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
In a textile-testing apparatus for measuring the cross section of yarns, rovings and slivers including automatic yarn changing means for sequentially providing yarns from respective spools to a conveying point and conveying means for conveying said yarns from said conveying point to a testing point comprising a rocker arm pivotable about a pivot point between said conveying point and said testing point and a yarn gripper disposed on one end of said rocker arm for selectively grasping said yarns.
Claim 2
Dependent Claim
79 words
In a textile-testing apparatus for measuring the cross section of yarns, rovings and slivers including automatic yarn changing means for sequentially providing yarns from respective spools to a conveying point and conveying means for conveying said yarns from said conveying point to a testing point comprising a rocker arm pivotable about a pivot point between said conveying point and said testing point and a yarn gripper disposed on one end of said rocker arm for selectively grasping said yarns.
Claim 3
Dependent Claim
51 words
A textile-testing apparatus as defined in claim 1, including testing means for testing said yarns having a plurality of spaced test devices each relating to different ranges of yarn sizes, and guide means adjustable as to position for guiding the yarn conveyed by said conveying means to a selected testing device.
Claim 4
Dependent Claim
39 words
A textile-testing apparatus as defined in claim 2 wherein said guide means includes a pair of curved guide projections disposed on respective sides of said test devices and slideable along said test devices into alignment with respective ones thereof.
Claim 5
Dependent Claim
33 words
A textile-testing apparatus as defined in claim 2, including means for cutting a yarn which has been tested prior to the conveyance of another yarn to said testing means by said conveying means.
Claim 6
Dependent Claim
44 words
A textile-testing apparatus as defined in claim 2, wherein a pair of oppositely rotating rollers is provided at said testing point on the opposite side of said testing means from said yarn changing means for receiving and driving said yarn through said testing means.
References Cited (Backward Citations)
US1962028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |