Patent · US Expired

Hammer

US4550785A · kind A · utility

24Cited by
10References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 29, 1979
Grant dateNov 5, 1985
Priority date—
Expiry dateMay 29, 1999

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF03C1/007
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A hydraulically operable hammer and more particularly a hydraulically operable hammer having improved cycling of a hammer piston reciprocable therewithin.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.