Invention Grant
- Patent Title: Systems for maintaining window covers
- Patent Title (中): 维护窗户的系统
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Application No.: US15141695Application Date: 2016-04-28
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Publication No.: US09574396B2Publication Date: 2017-02-21
- Inventor: Andrew J. Toti
- Applicant: Russell L. Hinckley, Sr. , Robert F. Miller
- Applicant Address: US CA Modesto US CA Modesto
- Assignee: Russell L. Hinckley, Sr.,Robert F. Miller
- Current Assignee: Russell L. Hinckley, Sr.,Robert F. Miller
- Current Assignee Address: US CA Modesto US CA Modesto
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: E06B9/322
- IPC: E06B9/322 ; E06B9/60 ; E06B9/90 ; E06B9/38 ; E06B9/32

Abstract:
A spring drive system includes a housing, an extendible window cover coupled with the housing, and at least one lift cord coupled to the cover for raising and lowering the window cover. A spring drive system comprises a first spring drive spool spaced apart from a second spring drive spool and at least one spring having a storage end coupled to one of the spring drive spools and an output end coupled to the other of the spring drive spools. A first cord spool has a first cord spool axis. The lift cord extends from the first cord spool to the window cover for assisting in raising and lowering of the cover, and the spring drive system affects rotation of the first cord spool about the first cord spool axis and has no external hand-operated control cord input to raise and lower the window cover.
Public/Granted literature
- US20160265273A1 SYSTEMS FOR MAINTAINING WINDOW COVERS Public/Granted day:2016-09-15
Information query
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