Ratcheting cutting tool for plastic pipes
US8024864B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Nov 25, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26D3/169
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratcheting cutting tool for plastic pipes having first and second, elongated rigid members pivotally mounted to each other. Each rigid member has a handle and the first rigid member additionally has an anvil at an end opposite from its handle. A spring-biased, knife blade member with a cutting edge and with a plurality of ratchet teeth is pivotally mounted to the first member. The tool further includes drive and catch pawls pivotally mounted to the respective rigid members. In operation, the handles of the rigid members can be repeatedly squeezed together to progressively move the cutting edge of the knife blade member in a step-by-step manner toward the anvil to cut through a plastic pipe positioned therebetween. A manually operated release mechanism is also disclosed wherein both the drive and catch pawls can be moved in one motion to release positions spaced from engagement with the ratchet teeth to permit the spring-biased knife blade member to be automatically returned to its open position after each cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.