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1. WO2000041851 - IMPACT ABSORBING FLUID OPERATED HAMMER

Publication Number WO/2000/041851
Publication Date 20.07.2000
International Application No. PCT/US2000/000647
International Filing Date 10.01.2000
Chapter 2 Demand Filed 31.07.2000
IPC
B25D 9/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
DPERCUSSIVE TOOLS
9Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously
CPC
E02D 7/10
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
7Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
02Placing by driving
06Power-driven drivers
10with pressure-actuated hammer, ; i.e. the pressure fluid acting directly on the hammer structure
Applicants
  • INTERNATIONAL CONSTRUCTION EQUIPMENT, INC. [US/US]; 301 Warehouse Drive Matthews, NC 28104, US (AllExceptUS)
  • LAST, Anthony, Edward, Walter [US/US]; US (UsOnly)
Inventors
  • LAST, Anthony, Edward, Walter; US
Agents
  • PINCKNEY, Frances, M. ; Kennedy Covington Lobdell & Hickman, L.L.P. Bank of America Corporate Center Suite 4200 100 N. Tryon Street Charlotte, NC 28202-4006, US
Priority Data
09/228,43711.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPACT ABSORBING FLUID OPERATED HAMMER
(FR) MARTEAU-PILON, MU PAR FLUIDE, ABSORBEUR D'IMPACT
Abstract
(EN)
An impact hammer (10) having a non-mechanical connection between the driving piston rod (16) and the impact ram (18). The non-mechanical connection includes an annular body portion (26) connected to the lower end of the piston rod (16) which is received in a cavity (38) in the top surface of the impact ram (18), and an elastomeric ring (48) is held in facing grooves (42, 46) in the cavity (38) and the annular body member (26) to constitute the sole connecting element between the piston rod (16) and the impact ram (16).
(FR)
La présente invention concerne un marteau-pilon (10) doté d'une connexion non mécanique entre la tige de piston d'entraînement (16) et le bélier d'impact (18). Cette connexion non mécanique comprend une portion de corps annulaire (26), reliée à l'extrémité inférieure de la tige du piston (16), qui est reçue dans une cavité (38) située dans la surface supérieure du bélier d'impact (18), et un anneau en élastomère (48) maintenu dans des rainures (42,46) se faisant face, pratiquées dans la cavité (38) et dans l'élément de corps annulaire (26), afin de constituer le seul élément de connexion entre la tige de piston (16) et le bélier d'impact (18).
Also published as
Latest bibliographic data on file with the International Bureau