Nova Patents
AT225463T

Rotary piston blower

Abstract

(57) The rotary piston blower by which the summary improvement was carried out supplies an oxidizer style to a fuel cell. With 1 enforcement form, the improved rotary piston blower contains a 片持 shaft. The improved rotary piston blower can supply an oil-less oxidizer style to an electrochemistry fuel cell. The improved rotary piston blower has less component part and fewer seals, and is easy to manufacture as compared with the rotary piston blower of the conventional technology.

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Granted
  4. Today

11 members in 8 offices

This recordMember, by publication datePriority claim

Priority claims2

Priority claims
DocumentOfficeKindDate
8731298United States of AmericaP
9900455CanadaW

Members11

Family members, oldest first
DocumentOfficeKind
CA2330425A1CanadaA1
WO9963228A1World Intellectual Property Organization (WIPO)A1
AU3807899AAustraliaA
EP1084348A1European Patent Office (EPO)A1
US6284397B1United States of AmericaB1
JP2002517662AJapanA
EP1084348B1European Patent Office (EPO)B1
AT225463TThis recordAustriaT
ATE225463T1AustriaT1
DE69903290D1GermanyD1
CA2330425CCanadaC