EP0346566A3

Oxygen enriching apparatus

Abstract

An apparatus for producing oxygen enriched air from the atmospheric air, including an oxygen enriching system employing a fan (18) for inducing a flow of atmospheric air through an oxygen enriching unit and a pump (10) for deriving the oxygen enriched air from the oxygen enriching unit, a sound-proof box for encasing the fan and pump (10), an air intake passage (30) subjected to bending not less than five times and an air exhaust passage (35) also subjected to bending not less than five times. The oxygen enriching unit is provided with a unit for adjusting an oxygen concentration to a constant level regardless of any change in the atmospheric temperature.

Term

Term ended

Projected expiry passed 3 December 2005, 20.8 years ago.

Every citation, both waysCites: the store holds 4 of 5

Citations
Document	Relation	Office	Category	Cited during
EP0054941A2	Cites	European Patent Office (EPO)	A	Search report
FR2273578A1	Cites	France	A	Search report
US4174955A	Cites	United States of America	A	Search report
US4397661A	Cites	United States of America	A	Search report

18 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims26

Priority claims
Document	Office	Kind	Date
27394084	Japan	–	1984-12-27
27394084	Japan	A	1984-12-27
27394084	Japan	A	1984-12-27
27465284	Japan	–	1984-12-28
27465284	Japan	A	1984-12-28
27465284	Japan	A	1984-12-28
27465384	Japan	–	1984-12-28
27465384	Japan	A	1984-12-28
27465384	Japan	A	1984-12-28
27465484	Japan	–	1984-12-28
27465484	Japan	A	1984-12-28
27465484	Japan	A	1984-12-28
27465584	Japan	–	1984-12-28
27465584	Japan	A	1984-12-28
27465584	Japan	A	1984-12-28
27394084	–	–	–
27465284	–	–	–
27465384	–	–	–
27465484	–	–	–
27465584	–	–	–
EP85115335	–	–	–
JP19840273940	–	–	–
JP19840274652	–	–	–
JP19840274653	–	–	–
JP19840274654	–	–	–
JP19840274655	–	–	–

Members18

Family members, oldest first
Document	Office	Kind
EP0185980A2	European Patent Office (EPO)	A2	1986-07-02
JPS61155201A	Japan	A	1986-07-14
JPS61155202A	Japan	A	1986-07-14
JPS61155203A	Japan	A	1986-07-14
JPS61155204A	Japan	A	1986-07-14
JPS61155205A	Japan	A	1986-07-14
EP0185980A3	European Patent Office (EPO)	A3	1987-06-16
US4789388A	United States of America	A	1988-12-06
EP0346566A2	European Patent Office (EPO)	A2	1989-12-20
EP0346566A3This record	European Patent Office (EPO)	A3	1990-05-02
JPH0229603B2	Japan	B2	1990-07-02
JPH0229604B2	Japan	B2	1990-07-02
JPH0229605B2	Japan	B2	1990-07-02
JPH0231005B2	Japan	B2	1990-07-11
JPH03324B2	Japan	B2	1991-01-07
EP0185980B1	European Patent Office (EPO)	B1	1995-03-01
DE3587995D1	Germany	D1	1995-04-06
DE3587995T2	Germany	T2	1995-10-12

9 legal events, as the office reported them to INPADOC

Over the term

Point at a mark for the event

Events

Legal events, newest first
	Event	Code
1993-06-30	Application deemed to be withdrawnWithdrawn18D	18D
1993-05-12	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA
1992-09-16	First examination report despatched17Q	17Q
1990-08-16	Request for examination filed17P	17P
1990-05-02	Designated contracting statesAK	AK
1990-03-12	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL
1989-12-20	Divisional application: reference to earlier applicationAC	AC
1989-12-20	Designated contracting statesAK	AK
1989-11-04	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI

Oxygen enriching apparatus

Abstract

Term

Priority claims26

Members18

Over the term

Events

Numbers

Titles3

Classification

Designated states4