Patent US3089945A successfully refreshed from Google Patents.
US3089945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Band saw blade stock and method of making the same
Assignee: Continental Machines Inc
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Filing: 1960-11-07
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Granted: 1963-05-14
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Eugene N Connoy
- 👤 Charles E Cleland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:54
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K31/025; B23D; B23D65/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
BAND SAW BLADE STOCK COMPRISING: A COMPOSITE BAND CONSISTING OF: (1) A FLEXIBLE BAND OF STEEL POSSESSING THE PROPERTIES NECESSARY TO WITHSTAND SHOCK AND HAVE GOOD RESISTANCE TO FATIGUE FAILURE, SAID BAND BEING OF INDISCRIMINATE LENGTH, UNIFORM WIDTH AND THICKNESS AND BEING SUFFICIENTLY FLEXIBLE TO BE UNAFFECTED BY REPEATED FLEXURE OVER THE PULLEYS OF A BAND SAW, AND (2) A CONTINUOUS UNBROKEN BEAD OF CUTTING TOOL STEEL FUSED DIRECTLY TO ONE EDGE OF SAID FLEXIBLE STEEL BAND WITH A WELL-DEFINED JUNCTION THEREBETWEEN EXTENDING ACROSS SAID EDGE OF THE BAND, THE BEAD HAVING A HARDNESS IN THE 63-66 RC. RANGE SO THAT IT MAY BE TEMPERED TO SECONDARY HARDNESS WITHOUT ANY INTERMEDIATE HARDENING, AND HAVING AN EXCEPTIONALLY FINE GRAIN STRUCTURE OBTAINED AS A RESULT OF RAPID QUENCHING FROM THE MOLTEN STATE AND BEING FREE FROM ANY EVIDENCE OF COLD WORKING; THE COMPOSITE BAND BEING ESSENTIALLY FREE FROM INTERNAL STRESSES SO THAT SUBSTANTIALLY NO DEFORMATION THEREOF TAKES PLACE WHEN TEETH ARE GROUND INTO SAID EDGE WITH THE GULLETS OF THE TEETH WELL BELOW THE JUNCTION OF THE FLEXIBLE STEEL BAND AND THE BEAD THEREON AND ONLY THE TIP PORTIONS OF THE TEETH OF CUTTING TOOL STEEL.
Claim 2
Dependent Claim
194 words
BAND SAW BLADE STOCK COMPRISING: A COMPOSITE BAND CONSISTING OF: (1) A FLEXIBLE BAND OF STEEL POSSESSING THE PROPERTIES NECESSARY TO WITHSTAND SHOCK AND HAVE GOOD RESISTANCE TO FATIGUE FAILURE, SAID BAND BEING OF INDISCRIMINATE LENGTH, UNIFORM WIDTH AND THICKNESS AND BEING SUFFICIENTLY FLEXIBLE TO BE UNAFFECTED BY REPEATED FLEXURE OVER THE PULLEYS OF A BAND SAW, AND (2) A CONTINUOUS UNBROKEN BEAD OF CUTTING TOOL STEEL FUSED DIRECTLY TO ONE EDGE OF SAID FLEXIBLE STEEL BAND WITH A WELL-DEFINED JUNCTION THEREBETWEEN EXTENDING ACROSS SAID EDGE OF THE BAND, THE BEAD HAVING A HARDNESS IN THE 63-66 RC. RANGE SO THAT IT MAY BE TEMPERED TO SECONDARY HARDNESS WITHOUT ANY INTERMEDIATE HARDENING, AND HAVING AN EXCEPTIONALLY FINE GRAIN STRUCTURE OBTAINED AS A RESULT OF RAPID QUENCHING FROM THE MOLTEN STATE AND BEING FREE FROM ANY EVIDENCE OF COLD WORKING; THE COMPOSITE BAND BEING ESSENTIALLY FREE FROM INTERNAL STRESSES SO THAT SUBSTANTIALLY NO DEFORMATION THEREOF TAKES PLACE WHEN TEETH ARE GROUND INTO SAID EDGE WITH THE GULLETS OF THE TEETH WELL BELOW THE JUNCTION OF THE FLEXIBLE STEEL BAND AND THE BEAD THEREON AND ONLY THE TIP PORTIONS OF THE TEETH OF CUTTING TOOL STEEL.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |