US3973505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tufting machines
Assignee: SPENCER WRIGHT INDUSTRIES Inc A CORP OF TENNESSEE
•
Filing: 1975-10-31
•
Granted: 1976-08-10
•
Expires: 1995-10-31
Abstract
Abstract A tufting machine bed having an oscillating looper assembly in which the oscillating mass is counter-balanced by mechanism including a weight which oscillates about a pivot point in the bed in a direction opposite to that of the looper assembly. The oscillatory motion of the counter-balancing assembly is derived from the same oscillating shaft that drives the looper assembly.
Inventors
- 👤 Richard J. Prichard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:15
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/22; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
162 words
In a tufting machine having a bed, a rocker arm pivotably mounted in the bed, a plurality of laterally spaced loopers each adapted to seize a loop of yarn presented thereto, means for securing said loopers to the rocker arm, a laterally extending oscillating shaft mounted in the bed, a rocker member secured to said shaft, and means pivotably connected to said rocker arm and said rocker member for oscillating said rocker arm and thereby said loopers in a plane substantially normal to said shaft, the improvement comprising: a second rocker member secured to said shaft for movement in said plane in a direction opposite to that of said loopers, a second rocker arm pivotably mounted in said bed for movement in said plane, a counter-balancing weight secured to said second rocker arm, and connecting means pivotably connected to said second rocker member and to said second rocker arm for oscillating said weight in a direction opposite to that of the loopers.
Claim 2
Dependent Claim
162 words
In a tufting machine having a bed, a rocker arm pivotably mounted in the bed, a plurality of laterally spaced loopers each adapted to seize a loop of yarn presented thereto, means for securing said loopers to the rocker arm, a laterally extending oscillating shaft mounted in the bed, a rocker member secured to said shaft, and means pivotably connected to said rocker arm and said rocker member for oscillating said rocker arm and thereby said loopers in a plane substantially normal to said shaft, the improvement comprising: a second rocker member secured to said shaft for movement in said plane in a direction opposite to that of said loopers, a second rocker arm pivotably mounted in said bed for movement in said plane, a counter-balancing weight secured to said second rocker arm, and connecting means pivotably connected to said second rocker member and to said second rocker arm for oscillating said weight in a direction opposite to that of the loopers.
Claim 3
Dependent Claim
20 words
In a tufting machine as recited in claim 1 wherein said weight is adjustably positionable along said second rocker arm.
Claim 4
Dependent Claim
18 words
In a tufting machine as recited in claim 1 wherein said shaft is disposed intermediate said rocker arms.
Claim 5
Dependent Claim
130 words
In a tufting machine having a bed, a plurality of laterally spaced loopers each adapted to cooperate with a corresponding needle to seize a loop of yarn presented thereto, and means including a laterally extending oscillating shaft mounted in the bed for oscillating said loopers in a plane substantially normal to said shaft, the improvement comprising: a first rocker arm secured to said shaft for movement in said plane in a direction opposite to that of said loopers, a second rocker arm pivotably mounted in said bed for movement in said plane, a counter-balancing weight secured to said second rocker arm, and connecting means pivotably connected to said first rocker arm and to said second rocker arm for oscillating said weight in a direction opposite to that of the loopers.
Claim 6
Dependent Claim
130 words
In a tufting machine having a bed, a plurality of laterally spaced loopers each adapted to cooperate with a corresponding needle to seize a loop of yarn presented thereto, and means including a laterally extending oscillating shaft mounted in the bed for oscillating said loopers in a plane substantially normal to said shaft, the improvement comprising: a first rocker arm secured to said shaft for movement in said plane in a direction opposite to that of said loopers, a second rocker arm pivotably mounted in said bed for movement in said plane, a counter-balancing weight secured to said second rocker arm, and connecting means pivotably connected to said first rocker arm and to said second rocker arm for oscillating said weight in a direction opposite to that of the loopers.
Claim 7
Dependent Claim
20 words
In a tufting machine as recited in claim 4 wherein said weight is adjustably positionable along said second rocker arm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |