Patent · US Expired

Adjustable ionization chamber

US4194120A · kind A · utility

1Cited by
8References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 1977
Grant dateMar 18, 1980
Priority date
Expiry dateNov 21, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08B17/113
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

An ionization chamber with two electrodes having a variable spacing and with a radioactive source for the ionization of the electrode gap therebetween includes an adjusting mechanism for the positional adjustment of one of the electrodes relative to the other. The mechanism is such that a spring element presses the adjustable electrode against at least one point of the adjusting mechanism. Several arrangements are disclosed for adjustably mounting a cup-shaped electrode in the housing of the chamber in such a manner that it is readily adjustable and will not undergo spurious readjustment as a result of vibration of shock.

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