US3276761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensile spring ring for shaft packings
Assignee: Goetzewerke Friedrich Goetze AG
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Filing: 1964-05-15
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Granted: 1966-10-04
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Becker Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; F16J15/3212; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A LENGTH OF TENSION SPRING ADAPTED FOR HAVING ITS ENDS JOINED TOGETHER TO FORM A SPRING BAND AND COMPRISING; A SERIES OF CONVOLUTIONS WITH AT LEAST THOSE CONVOLUTIONS AT THE ENDS OF THE SPRING IN FACE TO FACE ENGAGEMENT, THE OUTSIDE DIAMETER OF ONE OF SAID ENDS BEING SLIGHTLY LARGER THAN THE INSIDE DIAMETER OF THE OTHER OF SAID ENDS SO SAID ENDS CAN BE SCREWED TOGETHER TO FORM THE SPRING BAND, AT LEAST ONE CONVOLUTION OF A FIRST OF SAID ENDS BEING DISPLACED RADIALLY FROM THE ENVELOPE OF THE OTHER CONVOLUTIONS OF THE SAID FIRST END IN A DIRECTION SUCH THAT WHEN SAID ENDS ARE SCREWED TOGETHER SAID ONE CONVOLUTION WILL PRESS ADJACENT CONVOLUTIONS OF THE SECOND OF SAID ENDS APART AND WILL SEAT BETWEEN SAID ADJACENT CONVOLUTIONS OF SAID SECOND END AND BE GRIPPED THEREBETWEEN SO AS TO HOLD THE SCREWED TOGETHER ENDS FIRMLY TOGETHER.
Claim 2
Dependent Claim
147 words
A LENGTH OF TENSION SPRING ADAPTED FOR HAVING ITS ENDS JOINED TOGETHER TO FORM A SPRING BAND AND COMPRISING; A SERIES OF CONVOLUTIONS WITH AT LEAST THOSE CONVOLUTIONS AT THE ENDS OF THE SPRING IN FACE TO FACE ENGAGEMENT, THE OUTSIDE DIAMETER OF ONE OF SAID ENDS BEING SLIGHTLY LARGER THAN THE INSIDE DIAMETER OF THE OTHER OF SAID ENDS SO SAID ENDS CAN BE SCREWED TOGETHER TO FORM THE SPRING BAND, AT LEAST ONE CONVOLUTION OF A FIRST OF SAID ENDS BEING DISPLACED RADIALLY FROM THE ENVELOPE OF THE OTHER CONVOLUTIONS OF THE SAID FIRST END IN A DIRECTION SUCH THAT WHEN SAID ENDS ARE SCREWED TOGETHER SAID ONE CONVOLUTION WILL PRESS ADJACENT CONVOLUTIONS OF THE SECOND OF SAID ENDS APART AND WILL SEAT BETWEEN SAID ADJACENT CONVOLUTIONS OF SAID SECOND END AND BE GRIPPED THEREBETWEEN SO AS TO HOLD THE SCREWED TOGETHER ENDS FIRMLY TOGETHER.
References Cited (Backward Citations)
US3011775A
Cited
US2991064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |