Invention Grant
- Patent Title: Yarn tension control device
- Patent Title (中): 纱张力控制装置
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Application No.: US11999214Application Date: 2007-12-04
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Publication No.: US07806358B2Publication Date: 2010-10-05
- Inventor: Donald Lynn Hoover
- Applicant: Donald Lynn Hoover
- Applicant Address: US NC Gastonia
- Assignee: American Linc Corporation
- Current Assignee: American Linc Corporation
- Current Assignee Address: US NC Gastonia
- Agency: Schwartz Law Firm, P.C.
- Main IPC: B65H59/10
- IPC: B65H59/10

Abstract:
A yarn tension control device controls tension in a running yarn. The tension control device includes a housing having a yarn guiding inlet for receiving running yarn at an unwinding tension from a yarn supply source, and a yarn guiding outlet for guiding running yarn exiting the housing at a delivery tension. First and second opposing yarn engaging surfaces are disposed between the inlet and the outlet, and are adapted to frictionally engage opposite sides of the running yarn along a path of yarn travel through the housing. The first and second yarn engaging surfaces define a respective plurality of sequentially spaced friction rolls. A biasing assembly resiliently urges the first and second yarn engaging surfaces together. The opposing friction rolls cooperate to form a number of sequentially spaced nip points adapted to adjust yarn delivery tension in response to stress variations in running yarn entering the housing.
Public/Granted literature
- US20090140092A1 Yarn tension control device Public/Granted day:2009-06-04
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