US4089281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device of a needle-bearing in a quilting machine
Assignee: MECA SNC
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Filing: 1976-09-27
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Granted: 1978-05-16
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Expires: 1996-09-27
Abstract
Abstract At least one needle-bearing bar of a quilting machine is connected to a reciprocable shaft, a control device is operatively arranged selectively to engage and to disengage the needle-bearing bar from the shaft. The control device includes either two electromagnetic or a pneumatically operated cylinder. A timer can be provided to effect energization of the electromagnets or fluid delivery to and venting of the cylinder.
Inventors
- 👤 Giannino Landoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:17
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
In an apparatus which includes reciprocating means connected to at least one needle-bearing bar of a quilting machine for driving the needle-bearing bar, the improvement comprising a control device having means for disengaging said reciprocating means from said needle-bearing bar, said means comprising a reciprocable rod, a first electromagnet fastened to said reciprocable rod, a second electromagnet slidably mounted on said reciprocable rod, whereby the needle-bearing bar is engaged with the reciprocating means whenever the electromagnets are energized and disengaged when they are not energized, and an electronic timing means for automatically controlling subsequent energizations and de-energizations of said electromagnets.
Claim 2
Dependent Claim
100 words
In an apparatus which includes reciprocating means connected to at least one needle-bearing bar of a quilting machine for driving the needle-bearing bar, the improvement comprising a control device having means for disengaging said reciprocating means from said needle-bearing bar, said means comprising a reciprocable rod, a first electromagnet fastened to said reciprocable rod, a second electromagnet slidably mounted on said reciprocable rod, whereby the needle-bearing bar is engaged with the reciprocating means whenever the electromagnets are energized and disengaged when they are not energized, and an electronic timing means for automatically controlling subsequent energizations and de-energizations of said electromagnets.
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |