Low deflection drainage tile plow
US8814474B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2012 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/032
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pitch plow and method of laying flexible pipe in ground includes drawing a pitch plow with respect to the ground, the pitch plow having a frame and a shank pivotally mounted to a frame at a pivot, said shank defining a cutting edge. The shank is oriented relative to earth horizontal causing a change in the elevation of the cutting edge. Flexible pipe is fed through a boot extending generally along the shank. The flexible pipe is fed at an in-feed at an upper portion of the boot and discharged at a discharge at a lower portion thereof. The discharge is generally aligned with a vertical axis passing through the pivot in order to minimize vertical movement of the discharge as the shank pivots about the pivot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.