EP1586807A2

The composite tank and the technology of its manufacturing

Abstract

The invention solves the issue of the composite tank and the way of its manufacturing. It is peculiar because it has the liner (1) with the collar consisting of two parts (4). The internal part (3) has the external surface (8) to connect with the neck (2) of the liner (1) and a fragment of the segment (9) to connect with the external part (7). The neck (2) of the liner is internal. The collar (4) is covered jointly with the liner (1) by layers (14) of the composite material - glass fiber and carbon fiber. The way of manufacturing of the composite container, according to the invention involves the fact that after manufacturing of the elements of the neck, molding and joint manufacturing of the liner with the internal part of the collar takes place; then, after the assembly of the external part of the collar, the assembled tank is covered with the layers of the composite material - carbon fiber. The outer layers of the container are made of glass fiber.

EP1586807A2, drawing sheet 1 — Sheet 1 of 3

Term

Term ended

Projected expiry passed 2 November 2024, 1.9 years ago.

12 claims: 2 independent, 10 dependent

1
The tank with a liner and a collar attached to it to be connected to a valve element is peculiar because the collar (4) consists of two parts, whose internal part (3) has an external surface (8) to connect with the neck (2) of the liner (1) and a fragment of a section (9) to connect with the external part (7), which (7) in turn has the internal surface (9) congruent with a section of the internal part (3) enabling their mutual connection;and which has a resistance collar (11) to rest on the external surface of the liner (1) and the tip (13) to fix the valve element, whereas on the collar (4) and the liner (1) there are layers (14) of the composite material.
8
The way of manufacturing of the composite tank by joint molding of the liner with the collar is peculiar because the two part collar (4) is manufactured, whose internal part (3) is molded with the liner (1) leaving the lower internal surface not connected with the liner (1);then the manufacturing process the liner (1) molded in such a way takes place where in turn the external part (7) of the collar (4) is connected and the whole assembled in such a way is covered with layers (14) of the composite material.

Independent claims2

12 paragraphs, as filed

The object of the invention comprises a composite tank and the technology of its manufacturing.

The composite tank with a short neck liner made of plastic with a collar embedded in it during manufacturing process is known from the European notification of the invention - EP 0 821 194. The collar rests on the external part of the liner and the neck, whereas from the side of the neck, it has indentions to nest the notches of the neck of the liner. The valve element is pushed in, and rests on the interior of the ring shaped collar, while the tip is shaped congruently to the tip of the neck of the liner; For convenience both elements are cone-shaped. The collar and the liner are jointly wrapped with a composite material. There is a known way of manufacturing the composite tank according to the description: USA No 5,476,189, where a composite fiber is partially wrapped over the liner with the collar and then the pads of the material absorbing the blow are placed in it; and afterwards, the external layer is wrapped over the item, thus covering the pads.

The nature of the invention comprises a composite tank, which has a liner and a collar connected to it, to be attached to the valve element; and is peculiar, because it consists of two parts and its internal part has the external surface to connect it with the neck of the liner and a fragment of a section to connect it to the external part, which in turn, has the internal surface congruent with a fragment of the internal part, enabling their mutual connection; and also has a resistance collar to rest on the external surface of the liner and the tip to assembly the valve element, while the collar and the liner have layers of the composite material. The external surface of the internal part of the collar has appendages to connect to the liner neck. A fragment of the section of the internal part of the collar is threaded. The neck of the liner is internal. The internal part between the external surface and external section has a molded collar. The neck has notches at the closing section of the opening The neck is shaped as a sleeve at the internal fragment of the opening.

The nature of the way of manufacturing of the composite container by joint molding of the liner with the collar consists in manufacturing of a two-part collar whose internal part is molded with the liner, leaving the lower, internal surface not connected with the liner; then the manufacturing process of the liner molded in such a way takes place, to which in turn the external part of the collar is attached and the whole item assembled in such a way is covered with the layers of the composite material. Carbon fiber is the composite material, which his wrapped over in the wet technology. After the process of covering of the liner with the layers of the composite material, the drying and hardening takes place. The external layers of the tank are covered with the glass fiber. There are eight layers of the composite material.

The construction and the way of manufacturing of the composite tank permits molding with good sealing and adaptation of its construction to the uniform internal tension; and provides resistance to concussions with no need to add diverse pads.

The object of invention was presented in the attached drawing where Fig.1 represents the internal part of the collar, Fig. 2 represents the liner with the cross section of the internal part of the collar, Fig. 3 represents the cross section of the composite container with the whole collar.

The composite container, according to the invention, consists of a liner 1 made of plastic with the internal neck 2 in which the internal part 3 of the collar 4 is mounted.

The neck 2 has notches 5 at the closing part of the opening of its internal surface and a sleeve shaped opening 6 behind them. The collar 4 consists of two parts: the internal part 3 and the external part 7.

The internal part 3, consisting of a fragment of the sleeve, has appendages 8 on one end of its external surface to connect the closing fragment of the neck 2 of the liner 1, and on the other end, has a fragment of the section 9 to connect the external part 7 , which is the external thread 9. The internal surface consists of a molded collar 10 resting partially on the sleeve wall 6 of the neck 2. The external part 7 of the collar 4 has a form of a sleeve with a resistance collar 11 resting on the external surface of the liner 1 and with the internal thread 12 to connect with the thread 9 of the internal part 3. The tip 13 is adapted to connect the valve element. The internal part 3 of the collar 4 is connected to the liner 1 in one manufacturing process, and afterwards is connected to the external part 7 and the liner constructed in this way is wrapped over with the composite material layer after layer 14.

An example of manufacturing:

The collar is made by means of mechanical methods of two aluminum elements, which constitute its internal and external parts. Then, the internal part is molded together with the liner and the tank molded in this way constitutes one item, where the liner with the internal neck wrapping the fragment of the internal part of the collar is made of polyethylene.

The external part of the collar is mounted on the internal part and eight layers of the composite material, carbon fiber are wrapped over it in the wet technology by earlier saturation. After the carbon fiber has been wrapped over, the whole tank is dried and hardened and then the external layers of fibers - glass fiber - are wrapped over. The layers of glass fiber provide resistance of the container to concussion.

Every citation, both ways

Citations
Document	Relation	Office	Cited during
WO2010059068A3	Cited by	World Intellectual Property Organization (WIPO)	International search
KR101221004B1	Cited by	Republic of Korea	Search report
US10487981B2	Cited by	United States of America	Applicant
EP2112423A1	Cited by	European Patent Office (EPO)	Search report
RU2679689C1	Cited by	Russian Federation	Search report
EP3795340A1	Cited by	European Patent Office (EPO)	Applicant
WO2015108429A1	Cited by	World Intellectual Property Organization (WIPO)	International search
CN105705856A	Cited by	China	Search report
WO2010059068A2	Cited by	World Intellectual Property Organization (WIPO)	International search
DE102014013249B4	Cited by	Germany	Search report
DE102014013249A1	Cited by	Germany	Search report
EP0203631A2	Cites	European Patent Office (EPO)	Search report
EP0821194A2	Cites	European Patent Office (EPO)	Applicant
DE2046148A1	Cites	Germany	Search report
DE2152123A1	Cites	Germany	Search report
US5287987A	Cites	United States of America	Search report
US5476189A	Cites	United States of America	Applicant

4 priority claims, no other members on record

This recordMember, by publication datePriority claim

Priority claims4

Priority claims
Document	Office	Kind	Date
36717504	Poland	A	2004-04-13
36717504	Poland	–	2004-04-13
36717504	–	–	–
PL20040367175	–	–	–

34 legal events, as 5 offices reported them to INPADOC

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Legal events, newest first
	Event	Code	Office
2015-11-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2015-08-28	Notification of lapseLapsedST	ST	FR
2015-02-27	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2015-01-15	Lapse because of not paying annual feesLapsedMM01	MM01	AT
2014-11-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-09-03	No opposition filedOpposition26N	26N	EP
2014-08-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-08-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-08-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-08-28	Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119	R119	DE
2014-08-27	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2014-08-01	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2014-08-01	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2014-02-28	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2013-11-21	Dpma publication of mentioned ep patent grantGrantedR096	R096	DE
2013-10-15	Reference to at number (ep patent enters austrian national phase)REF	REF	AT
2013-09-25	Designated contracting statesAK	AK	EP
2013-09-25	European patent grantedGrantedFG4D	FG4D	GB
2013-09-18	Designated contracting states (corrected)RBV	RBV	EP
2013-08-23	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
2013-06-27	Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS	GRAS	EP
2013-05-15	Intention to grant announcedINTG	INTG	EP
2013-04-17	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP	GRAP	EP
2012-05-02	First examination report despatched17Q	17Q	EP
2011-12-14	Designation fees paidAKX	AKX	EP
2011-11-09	Request for examination filed17P	17P	EP
2011-04-06	Designated contracting statesAK	AK	EP
2011-04-06	Request for extension of the european patentAX	AX	EP
2011-04-06	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2011-04-06	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2011-03-04	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
2005-10-19	Designated contracting statesAK	AK	EP
2005-10-19	Request for extension of the european patentAX	AX	EP
2005-09-02	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

The composite tank and the technology of its manufacturing

Abstract

Term

Priority claims4

Over the term

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Titles3

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Designated states35