US4856490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire saw
Assignee: Osaka Diamond Industrial Co Ltd
•
Filing: 1988-09-08
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Granted: 1989-08-15
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Expires: 2008-09-08
Abstract
Abstract An improved wire saw having a wire rope, a resilient layer covering the outer periphery of the wire rope, and a plurality of sleeves mounted on the wire rope through the resilient layer at spacings, the sleeves having an abrasive layer on their outer periphery. The resilient layer has a smaller outer diameter at portions between the sleeves than over and adjacent to the sleeves. The sleeves or the resilient layer is provided with an engaging portion to axially extend to prevent one of them from turning with respect to the other.
Inventors
- 👤 Tsunezo Kawase
- 👤 Shuichiro Koroku
- 👤 Kunio Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:23
CPC Classifications
B; B23; B23D; B23D61/00; B23D61/18; B23D61/185; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9292
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
A wire saw comprising: a wire rope, a resilient layer covering the outer periphery of said wire rope, a plurality of sleeves mounted on said wire rope through said resilient layer and spaced at distances, said sleeves having an abrasive layer on outer periphery thereof, said resilient layer having its outer diameter which is smaller at portions between each pair of the adjacent ones of said sleeves than over and adjacent to said sleeves, to form shoulders on said resilient layer at portions corresponding to both ends of said each sleeve.
Claim 2
Dependent Claim
91 words
A wire saw comprising: a wire rope, a resilient layer covering the outer periphery of said wire rope, a plurality of sleeves mounted on said wire rope through said resilient layer and spaced at distances, said sleeves having an abrasive layer on outer periphery thereof, said resilient layer having its outer diameter which is smaller at portions between each pair of the adjacent ones of said sleeves than over and adjacent to said sleeves, to form shoulders on said resilient layer at portions corresponding to both ends of said each sleeve.
Claim 3
Dependent Claim
43 words
A wire saw as claimed in claim 1, wherein the shoulder formed at the advancing end of said each sleeve in the running direction of the wire saw has a smaller height than the shoulder formed at the trailing end of said sleeve.
Claim 4
Dependent Claim
27 words
A wire saw as claimed in claim 1, further comprising an engaging means extending axially to ensure, a secure bond between said sleeve and said resilient layer.
Claim 5
Dependent Claim
29 words
A wire saw as claimed in claim 1, wherein said sleeves each have said engaging portion at each end thereof so as to extend axially toward said resilient layer.
Claim 6
Dependent Claim
28 words
A wire saw as claimed in claim 1, wherein said sleeves are each formed with a hole to receive said resilient layer therein to form said engaging portion.
Claim 7
Dependent Claim
24 words
A wire saw as claimed in claim 1, wherein said sleeves have their inner periphery tapered at a portion adjacent to each end thereof.
Claim 8
Dependent Claim
27 words
A wire saw as claimed in claim 1, wherein said abrasive layer has a projection protruding into said sleeve to secure said abrasive layer to said sleeve.
References Cited (Backward Citations)
FR1203000A
Cited
US3847569A
Cited
US3741192A
Cited
US3884212A
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Cited
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Cited
JPS61121817A
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Cited
US4735188A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |