Patent · US Expired

Pump

US4311440A · kind A · utility

12Cited by
7References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 5, 1977
Grant dateJan 19, 1982
Priority date
Expiry dateJan 5, 1997

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF04C2240/60
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A vacuum pump adapted to be used as a priming pump comprising a pump assembly and a motor assembly both of which are secured to a mounting head located therebetween. The motor assembly includes a housing and a motor shaft extending a substantial extent from the housing. The mounting head has a bore aligned with the central bore of the rotor of the pump assembly. The motor assembly is secured to the mounting head with the motor shaft extending through the bore in the mounting head into the central bore of the rotor for driving the same.

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