Hydraulic setting tool for installing anchoring and foundation support apparatus
US4974997A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1988 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Mar 16, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/74
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic setting tool assembly for setting earth anchor and foundation devices comprising side-by-side hydraulic motive members. Each motive members comprises a piston movable within a cylinder. The piston has a piston arm extending out of the cylinder. Movement of a piston under the pressure of hydraulic fluid causes the associated piston arm to extend from or retract into its associated cylinder. A piston arm bearing plate is secured to the extended ends of the piston arms. A cylinder bearing plate is secured to the base of the cylinders. The bearing plates are parallel to each other and an opening is provided in each of the plates midway between the motors so that said openings are aligned for the passage of a threaded rod therethrough. An adjustable nut on the rod restrains one of the bearing plates against movement along the rod while the other bearing plate can move relative to the rod to force an earth anchor or foundation device into the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.