US3671014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fastening of load
Assignee: Individual
•
Filing: 1969-11-19
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Granted: 1972-06-20
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Expires: 1989-11-19
Abstract
Abstract A device for tensioning and fastening a flexible elongated member, such as a chain or wire. A frame has a pressure bellows and a lever mounted thereon. The pressure bellows is operatively connected to the lever by a shank member whereby the stroke of the pressure bellows is multiplied by the leverage ratio of the lever so that the free end of the lever goes through a increased stroke to tension a flexible elongated member attached to the free end of the lever.
Inventors
- 👤 Gote Sixten Karlsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:53
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/0823; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2175
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
147 words
A device for tensioning and fastening a flexible elongated member, comprising, in combination: a frame structure; a pressure bellows connected to said frame structure: a bearing connected to said frame structure; a lever having a first end thereof adapted to be attached to said flexible elongated member and having a second end thereof fulcrumed to said bearing; a rigid shank having one end thereof connected to said pressure bellows and having another end thereof articulatedly connected to said lever at a position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby movement of said pressure bellows imparted to said rigid shank member is multiplied by the leverage ratio of said lever to cause said first end of said lever to move through a greater distance resulting in a tensioning of said flexible elongated member.
Claim 2
Independent Claim
147 words
A device for tensioning and fastening a flexible elongated member, comprising, in combination: a frame structure; a pressure bellows connected to said frame structure: a bearing connected to said frame structure; a lever having a first end thereof adapted to be attached to said flexible elongated member and having a second end thereof fulcrumed to said bearing; a rigid shank having one end thereof connected to said pressure bellows and having another end thereof articulatedly connected to said lever at a position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby movement of said pressure bellows imparted to said rigid shank member is multiplied by the leverage ratio of said lever to cause said first end of said lever to move through a greater distance resulting in a tensioning of said flexible elongated member.
Claim 3
Dependent Claim
152 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 1, further comprising: connecting means affixed to said lever in the vicinity of said first end thereof for interconnecting said lever and said flexible elongated member; disengagable mechanical stop means secured to said frame structure for preventing movement of said lever toward said pressure bellows; said stop means including a toothed sector one end of which is pivotally affixed to said frame structure and the other end of which is connected to said frame structure by a spring, a manually disengagable pawl pivotally affixed to said frame structure and arranged to engage with a projection on said toothed sector in the vicinity of the end of said toothed sector interconnected to said frame structure by said spring, and a projection element affixed to said lever and capable of being engaged between the teeth of said toothed sector.
Claim 4
Dependent Claim
25 words
A device for tensioning and fastening a flexible elongated member in accordance with claim 1, wherein said pressure bellows includes a reinforced rubber hollow body.
Claim 5
Dependent Claim
25 words
A device for tensioning and fastening a flexible elongated member in accordance with claim 2, wherein said pressure bellows includes a reinforced rubber hollow body.
Claim 6
Dependent Claim
81 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 1, further comprising: a spring member having one end thereof affixed to said frame structure remote from said pressure bellows, and having another end thereof connected to said lever at said position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby said spring member urges said lever to move toward said pressure bellows.
Claim 7
Dependent Claim
130 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 1, further comprising: a second pressure bellows connected to said frame structure remote from said first-mentioned pressure bellows; a second rigid shank member having one end thereof connected to said second pressure bellows and having another end thereof articulatedly connected to said lever at said Position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby said second pressure bellows is arranged to be compressed when said first-mentioned pressure bellows is expanded upon being supplied with a pressure medium, and said first-mentioned pressure bellows is arranged to be compressed when said second pressure bellows is expanded upon being fed with a pressure medium.
Claim 8
Dependent Claim
81 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 2, further comprising: a spring member having one end thereof affixed to said frame structure remote from said pressure bellows, and having another end thereof affixed to said lever at said position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby said spring member urges said lever to move toward said pressure bellows.
Claim 9
Dependent Claim
130 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 2, further comprising: a second pressure bellows connected to said frame structure remote from said first-mentioned pressure bellows; a second rigid shank member having one end thereof connected to said second pressure bellows and having another end thereof articulatedly connected to said lever at said position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby said second pressure bellows is arranged to be compressed when said first-mentioned pressure bellows is expanded upon being fed with a pressure medium, and said first-mentioned pressure bellows is arranged to be compressed when said second pressure bellows is expanded upon being fed with a pressure medium.
Claim 10
Dependent Claim
81 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 3, further comprising: a spring member having one end thereof affixed to said frame structure remote from said pressure bellows, and having another end thereof connected to said lever at said position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby said spring member urges said lever to move toward said pressure bellows.
Claim 11
Dependent Claim
130 words
A device for tensioning and fastening a flexible elongated member characterized in accordance with claim 3, further comprising: a second pressure bellows connected to said frame structure remote from said first-mentioned pressure bellows; a second rigid shank member having one end thereof connected to said second pressure bellows and having another end thereof articulatedly connected to said lever at said position along said lever which is closer to said second end of said lever than to said first end of said lever; whereby said second pressure bellows is arranged to be compressed when said first-mentioned pressure bellows is expanded upon being fed with a pressure medium, and said first-mentioned pressure bellows is arranged to be compressed when said second pressure bellows is expanded upon being fed with a pressure medium.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |