Patent · US Expired

Mold cavity volume measuring apparatus

US4715221A · kind A · utility

16Cited by
8References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 5, 1986
Grant dateDec 29, 1987
Priority date
Expiry dateAug 5, 2006

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01F17/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An apparatus for measuring the volume of a mold cavity of the type having a plurality of small dimension air venting passages in communication with the mold cavity. The apparatus includes an extensible membrane enclosure which is inserted into the mold cavity and filled with liquid from a liquid-holding vessel connected to the extensible membrane enclosure. Measurement of liquid in the liquid-holding vessel with a calibrated scale assembly is made prior to and subsequent to filling of the extensible membrane enclosure for determining the volume of the mold cavity.

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