Patent · US Expired

Breaker apparatus

US4072354A · kind A · utility

3Cited by
4References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 6, 1976
Grant dateFeb 7, 1978
Priority date
Expiry dateMay 6, 1996

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB25D17/32
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

Apparatus including a downwardly-extending breaker bar connected for vertical movement by linkage to a base adapted to be mounted on a suitable traction unit. A hydraulic cylinder unit extends between the base and the breaker bar, and operating means is associated with the cylinder unit for selectively supplying fluid to said unit alternatively to raise and lower the breaker bar to cause it to strike a surface to be broken, such as the crust that forms on aluminum smelt in pots during the electrolytic production of aluminum.

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