US3763805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick retracting space selectable multiple needle holder
Assignee: RELIABLE ATTACHMENT CO Inc
•
Filing: 1972-03-09
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Granted: 1973-10-09
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Expires: 1992-03-09
Abstract
Abstract A multiple needle sewing machine attachment for selectively holding a plurality of needles subject to being spaced at a desired distance from each other either in operative stitch forming position, or in an inoperative position so as to permit one or more of the needles to be made inoperative as material is fed through the machine, whereby the direction of stitching may be changed without having any cross-over of the rows of stitches. Each needle is held by a needle block having a positioning slot through which a screw extends to adjustably retain the needle block on a slide member in a slideway formed in the body of the attachment, with the slide member biased by a spring, to a needle retracted position in the slideway. A selectively operable latch engages the slide member to retain the needle in an extended operative position. However on release of the latch the needle is quickly retracted to an inoperative position by the spring.
Inventors
- 👤 K Weigert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:35
CPC Classifications
D; D05; D05B; D05B55/00; D05B55/14; D05B55/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
A multiple needle holder for a multiple needle sewing machine, said holder comprising a body adapted for securement to the needle bar of a multiple needle sewing machine; slideways formed in said body, one for each needle to be held; a slide member slideably mounted in each slideway; a needle block having an elogate laterally extending positioning slot extending therethrough; and an adjusting screw extending through said slot into said slide member; a needle secured to said needle block; a spring biasing said slide member to a retracted position away from the stitch forming area of the sewing machine; and a latch having a detent engaging said slide member in an operative extended position at the end of said slideway remote from the retracted position of said slide member.
Claim 2
Dependent Claim
129 words
A multiple needle holder for a multiple needle sewing machine, said holder comprising a body adapted for securement to the needle bar of a multiple needle sewing machine; slideways formed in said body, one for each needle to be held; a slide member slideably mounted in each slideway; a needle block having an elogate laterally extending positioning slot extending therethrough; and an adjusting screw extending through said slot into said slide member; a needle secured to said needle block; a spring biasing said slide member to a retracted position away from the stitch forming area of the sewing machine; and a latch having a detent engaging said slide member in an operative extended position at the end of said slideway remote from the retracted position of said slide member.
Claim 3
Dependent Claim
39 words
A multiple needle holder as in claim 1 in which said slide member is formed with a notch in which said latch detent engages when said slide member is slid to a position maintaining the needle in operative position.
Claim 4
Dependent Claim
45 words
A multiple needle holder as in claim 1 in which said holder body is of a rectangular block-like configuration; said slideways extend vertically through said body when said holder is operatively positioned; and a latch pivoted on a side of said body adjacent said slideway.
Claim 5
Dependent Claim
61 words
A multiple needle holder as in claim 3 in which said latch is in the form of a first class lever, the spring biasing of said latch being provided by a compression spring arranged between said latch and said holder biasing the latch lever arm remote from the latch detent away from the body to bring the detent toward said body.
Claim 6
Dependent Claim
39 words
A multiple needle holder as in claim 1 in which said adjusting screw is of a length such that the shank of the screw may be digitally engaged to facilitate shifting of the needle to an operative extended position.
Claim 7
Dependent Claim
36 words
A needle holder as in claim 1 in which said spring biasing said slide member comprises a tension spring anchored at one end to said holder body, and at its other end to said slide member.
Claim 8
Dependent Claim
24 words
A needle holder as in claim 1 in which said slideways are T-shaped in cross-section, providing flanges overlying the edges of said slide members.
Claim 9
Dependent Claim
26 words
A needle holder as in claim 7 in which said slide member is T-shaped in cross-section with the leg of the T sliding between said flanges.
Claim 10
Dependent Claim
24 words
A needle holder as in claim 1 in which said needle block is formed with a channel straddling a land on said slide member.
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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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |