Patent · US Expired

Method of and arrangement for manufacturing enclosed blocks

US4449905A · kind A · utility

2Cited by
5References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 6, 1982
Grant dateMay 22, 1984
Priority date
Expiry dateAug 6, 2002

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16K47/02
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Blocks with a casing composed of upper and lower parts are produced by inserting the upper and lower parts in an inserting device above and below pushing elements between upper and lower pressing dies of a press, displacing by the pushing elements the lower part in a chamber of a mold towards the lower pressing die and the upper part towards the upper pressing die with self-releasable holding on the latter, withdrawing the inserting device from a pressing region between the upper and lower pressing dies, and cyclically repeating these steps in synchronism with a working stroke of the press.

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