Patent US4223439A successfully refreshed from Google Patents.
US4223439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operated cutting pliers for cables, wires, profiles or the like
Assignee: Individual
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Filing: 1979-01-10
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Granted: 1980-09-23
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Expires: 1999-01-10
Abstract
Abstract Manually operated cutting pliers in which two hinged plier grips are spread apart by spring action. One of the plier grips has a fixture, whereas the other grip actuates a jaw movable relative to the fixed jaw by a sliding drive. At least one of the two jaws on a side facing the other, has a cutting edge. The two plier jaws can be enclosed around a workpiece to form a closed jaw arrangement with a width which can be reduced to substantially zero by opening and closing the two plier grips. The movable jaw may be pivotally mounted on the outer end of the fixed jaw and is formed by a clamp to be placed around the workpiece. During closure, the clamp engages the sliding drive, and when it is actuated, the workpiece is gradually pinched between the jaws and finally split.
Inventors
- 👤 Reiner Rommel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:42
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/02; A01G3/025; A01G3/0251; B; B23; B23D; B23D29/00; B23D29/02; B23D29/023
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
147 words
Manually operated cutting pliers for cables, wires and profiles, comprising: two hinged plier grips spread apart by spring action; one of said plier grips having a fixed cutting jaw forming a workpiece support, said fixed cutting jaw having a free outer end, a second movable cutting jaw placeable about a workpiece and pivotally mounted at said free end, a closure drive actuated by another plier grip, said second jaw having teeth on the outside meshing with said closure drive after placement about the workpiece, said teeth comprising a gear segment with teeth located about a circular base abutted around the pivoted mounting of said second jaw, said closure drive comprising a toggle lever drive actuated by said movable jaw and extending into said gear segment; said jaws being movable relative to each other about a pivot point at ends facing away from ends of the plier grips.
Claim 2
Dependent Claim
147 words
Manually operated cutting pliers for cables, wires and profiles, comprising: two hinged plier grips spread apart by spring action; one of said plier grips having a fixed cutting jaw forming a workpiece support, said fixed cutting jaw having a free outer end, a second movable cutting jaw placeable about a workpiece and pivotally mounted at said free end, a closure drive actuated by another plier grip, said second jaw having teeth on the outside meshing with said closure drive after placement about the workpiece, said teeth comprising a gear segment with teeth located about a circular base abutted around the pivoted mounting of said second jaw, said closure drive comprising a toggle lever drive actuated by said movable jaw and extending into said gear segment; said jaws being movable relative to each other about a pivot point at ends facing away from ends of the plier grips.
Claim 3
Dependent Claim
38 words
Manually operated cutting pliers as defined in claim 1 wherein said movable second jaw comprising a clamp placed around a workpiece, said clamp during closure engaging said drive, said clamp upon actuation pinching and finally splitting a workpiece.
Claim 4
Dependent Claim
25 words
Manually guided cutting pliers as defined in claim 1 including a slot guide for said movable jaw on said plier grip having said fixed jaw.
Claim 5
Dependent Claim
33 words
Manually operated cutting pliers as defined in claim 1 including a pivot bearing; teeth of said gear segment being located on a circular arc centered around said pivot bearing and engaging said drive.
Claim 6
Dependent Claim
45 words
Manually operated cutting pliers as defined in claim 1 including plane surfaces and cutting phases, said jaws guiding each other along said plane surfaces, said cutting phases being ground on a side facing away from said plane surfaces, said pliers operating as a shear cutter.
Claim 7
Dependent Claim
74 words
Manually operated cutting pliers as defined in claim 4 including a shear lever, a spring and a stop lever as part of said drive, said shear lever being located on said plier grip actuating said movable jaw and engaging said gear segment, said stop lever being located on said plier grip having a fixed jaw, said spring causing said stop lever to engage said gear segment when said movable jaw plier grip swings back.
Claim 8
Dependent Claim
53 words
Manually operated cutting pliers as defined in claim 4 wherein one of said plier grips for actuating said movable jaw is spaced from said pivot bearing of said movable jaw on said one of said plier grips having a fixed jaw by a distance corresponding to the radius of the said gear segment.
Claim 9
Dependent Claim
38 words
Manually operated cutting pliers as defined in claim 6 wherein said shear lever with an upper end of said one of said plier grips for actuating said movable jaw forms a toggle-lever drive cooperating with said gear segment.
Claim 10
Dependent Claim
206 words
Manually operated cutting pliers for cables, wires and profiles, comprising: two hinged plier grips spread apart by spring action; one of said plier grips having a fixed jaw; a sliding drive; a movable jaw actuated relative to said fixed jaw by the other one of said plier grips via said sliding drive; at least one of said jaws having a cutting edge on a side facing another jaw, said jaws enclosing a workpiece for forming a closed gap, the width of said gap being reduced to zero by opening and closing said two plier grips; a gear segment on an outside of said movable jaw; a pivot bearing; teeth of said gear segment being located on a circular arc centered around said pivot bearing and engaging said sliding drive; a shear lever, a spring and a stop lever as part of said sliding drive, said shear lever being located on said plier grip actuating said movable jaw and engaging said gear segment, said stop lever being located on said plier grip having a fixed jaw, said spring causing said stop lever to engage said gear segment when said movable jaw plier grip swings back; a common unlocking slide engaging said shear lever and said stop lever.
Claim 11
Dependent Claim
206 words
Manually operated cutting pliers for cables, wires and profiles, comprising: two hinged plier grips spread apart by spring action; one of said plier grips having a fixed jaw; a sliding drive; a movable jaw actuated relative to said fixed jaw by the other one of said plier grips via said sliding drive; at least one of said jaws having a cutting edge on a side facing another jaw, said jaws enclosing a workpiece for forming a closed gap, the width of said gap being reduced to zero by opening and closing said two plier grips; a gear segment on an outside of said movable jaw; a pivot bearing; teeth of said gear segment being located on a circular arc centered around said pivot bearing and engaging said sliding drive; a shear lever, a spring and a stop lever as part of said sliding drive, said shear lever being located on said plier grip actuating said movable jaw and engaging said gear segment, said stop lever being located on said plier grip having a fixed jaw, said spring causing said stop lever to engage said gear segment when said movable jaw plier grip swings back; a common unlocking slide engaging said shear lever and said stop lever.
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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |