US4178682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet cable cutter
Assignee: HK Porter Inc
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Filing: 1978-08-31
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Granted: 1979-12-18
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Expires: 1998-08-31
Abstract
Abstract A ratchet cable cutter is provided with a double linkage between the handle and the pawl of the ratchet mechanism, and the relation between the two linkages is such that improved mechanical advantage is obtained while keeping the linkage mechanism within the limited spatial confines of the cutter tool.
Inventors
- 👤 Joseph J. Sadauskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:57
CPC Classifications
B; B23; B23D; B23D29/00; B23D29/02; B23D29/023
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A ratchet cable cutter comprising, in combination, a stationary frame assembly having a stationary blade and a stationary handle assembly, a ratchet blade rotatably supported upon said frame, a driving handle assembly rotatably supported upon said frame, a drive lever rotatably supported upon said frame, a pawl rotatably supported upon said drive lever in cooperative relationship with said ratchet blade to drive said ratchet blade forward, a detent rotatably supported upon said frame assembly in cooperative relationship with said ratchet blade to restrain backward movement of said ratchet blade, and a drive link between said driving handle assembly and said drive lever.
Claim 2
Dependent Claim
102 words
A ratchet cable cutter comprising, in combination, a stationary frame assembly having a stationary blade and a stationary handle assembly, a ratchet blade rotatably supported upon said frame, a driving handle assembly rotatably supported upon said frame, a drive lever rotatably supported upon said frame, a pawl rotatably supported upon said drive lever in cooperative relationship with said ratchet blade to drive said ratchet blade forward, a detent rotatably supported upon said frame assembly in cooperative relationship with said ratchet blade to restrain backward movement of said ratchet blade, and a drive link between said driving handle assembly and said drive lever.
Claim 3
Dependent Claim
151 words
A ratchet cable cutter comprising in combination a stationary frame assembly having a stationary handle assembly and a stationary blade, a ratchet blade rotatably mounted on said frame, a driving handle assembly rotatably mounted on said frame, whereby said driving handle can swing in a wide arc about a first axis, at least one drive lever rotatably mounted on said frame, whereby said drive lever can swing in a small arc within said frame about a second axis, a pawl rotatably mounted on said drive lever so as to engage said ratchet blade to drive said ratchet blade forward, a detent rotatably mounted upon said frame assembly so as to engage said ratchet blade to restrain backward movement of said ratchet blade, and a drive link connecting the end of said drive lever remote from said second axis to that end of said driving handle assembly near to said first axis.
Claim 4
Dependent Claim
151 words
A ratchet cable cutter comprising in combination a stationary frame assembly having a stationary handle assembly and a stationary blade, a ratchet blade rotatably mounted on said frame, a driving handle assembly rotatably mounted on said frame, whereby said driving handle can swing in a wide arc about a first axis, at least one drive lever rotatably mounted on said frame, whereby said drive lever can swing in a small arc within said frame about a second axis, a pawl rotatably mounted on said drive lever so as to engage said ratchet blade to drive said ratchet blade forward, a detent rotatably mounted upon said frame assembly so as to engage said ratchet blade to restrain backward movement of said ratchet blade, and a drive link connecting the end of said drive lever remote from said second axis to that end of said driving handle assembly near to said first axis.
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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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |