EP0574214A1 - Dosenöffner - Google Patents

Dosenöffner Download PDF

Info

Publication number: EP0574214A1
Authority: EP; European Patent Office
Prior art keywords: opener; bearing; drive wheel; rim; wheel
Prior art date: 1992-06-09
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP93304404A

Other languages

English (en)

French (fr)

Other versions

EP0574214B1 (de

Inventor

Vincent Hong Wah Koo

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Maxpat Trading and Marketing Far East Ltd

Original Assignee

Maxpat Trading and Marketing Far East Ltd

Mike and Kremmel Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1992-06-09

Filing date

1993-06-07

Publication date

1993-12-15

1993-06-07 Application filed by Maxpat Trading and Marketing Far East Ltd, Mike and Kremmel Ltd filed Critical Maxpat Trading and Marketing Far East Ltd

1993-12-15 Publication of EP0574214A1 publication Critical patent/EP0574214A1/de

1996-05-01 Application granted granted Critical

1996-05-01 Publication of EP0574214B1 publication Critical patent/EP0574214B1/de

2013-06-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B7/00—Hand- or power-operated devices for opening closed containers
- B67B7/30—Hand-operated cutting devices
- B67B7/34—Hand-operated cutting devices with rotatable cutters

Definitions

This invention relates to a can opener.
a can opener of the type in which the can is opened by cutting through an outer part of the rim joining the lid with the main body of the can has been proposed in several references, in particular US4734986, US4782594, US2255641 US Re27,504, US4251917, US3094776, US2196182, US5121546 and inventor's US Patent No. 5181322 derived from PCT Publication no. W090/05108.
the rim of the can is held between a drive wheel, which is rotatably connected to a handle for operation by a user, and a cutter wheel. Rotation of the drive wheel causes the drive wheel to move around the rim, with the cutter wheel cutting through the outer part of the rim thus separating the lid from the remainder of the can.
the drive wheel be rotatably journalled within a metal sleeve supported by the body of the can opener, with the outer surface of the shaft and the inner surface of the sleeve mating at positions adjacent the ends of the sleeve so as to provide rotational support for the shaft and intermediate those positions a gap being provided between the outer surface of the shaft and the inner surface of the sleeve to avoid contact between the shaft and sleeve so as to reduce frictional forces upon rotation of the shaft relative to the sleeve.
the inventor found that this did not resolve the problem and the can opener was still difficult to operate.
a hand-operated can opener having support means to which a cutter wheel engageable with the rim of a can and a drive wheel adapted to grip the rim on an opposed side to said cutter wheel are rotatably mounted, the drive wheel being connected to a handle for manual rotation of the drive wheel and cutter wheel around the can rim and wherein the spindle is rotatably mounted relative to the support means by means of at least one rolling bearing.
the inventor has found that the use of a rolling bearing, a bearing type not before, to the inventor's knowledge, used or associated with hand-operated kitchen implements provided a substantial reduction in operating difficulty for the can opener.
the rolling bearing is in the form of a needle roller bearing of length at least equal to its character or may comprise two roller bearings contained in a single housing mounted in the body portion at spaced locations.
Figure 1 is a side view of the cutting arrangement of a can opener being an embodiment of the invention.
Figure 2 is a view of an enlarged scale similar to figure 1 showing the cutter and drive wheels engaging the can.
Figure 3a is a cross sectional view of the drive wheel and spindle of figure 1 with figure 3b being a view in the direction a-a of figure 2a.
Figure 4 is a cross sectional view similar to figure 2a illustrating a second embodiment of the invention.
Figure 1 is a view similar to figure 12 of US 5181322 but illustrating an embodiment of the invention.
the can opener generally designated 10 comprises a support means formed from a pair of handles which are integrally formed with body portions 12 and 14 respectively.
the body portions 12, 14 are pivoted to one another about a spigot 13 which is integral with the body portion 12 and which extends into a corresponding opening 15 in the body portion 14.
a spindle 16 passes the through the spigot 13, the spindle being formed at one side with the drive wheel 18 which has on its outer face, serrations, teeth or the like to allow it to grip the inside of a rim 20 of a can 22 (fig 2) so that when rotated, the drive wheel 18 will drive the can opener 10 around the can 22 to be opened.
crank handle 19 is provided by means of which the wheel 18 may be manually rotated.
a washer 21 is provided between the handle 19 and the body portion 12.
the cutter wheel 30 Connected to the body portion 14 is an upstanding shaft 29 on which a cutter wheel 30 is idly and rotatably mounted.
the cutter wheel 30 comprises a circular cutting edge 32 and a integral circular flange 34.
the outer cylindrical face 36 of this is slightly larger diameter than the cutting edge 32 so that the face 36 can bear against an upright sidewall 38 of the can 22.
the cutter wheel 30 is held in place on the shaft 29 by an endcap 40 riveted or screwed to the shaft 29. Between the endcap 40 and the wheel 30 is a washer 42 of a resilient material. Washers 41 are provided on either side of the cutter wheel 30.
the axis 40 of the spindle 16 is offset from the axis 42 of the spigot 13.
the drive wheel 18 is moved away from cutter wheel 30 and so can be placed over the rim of the can to be opened and conversely when the handles are brought together and grasp in the hand of a user, the drive wheel 18 is moved in closer to the cutter wheel 30 and engages the rim of the can guided by flange 34 to the position as shown in figure 2 in which the cutter edge engages the can rim which is held in the nip between cutter wheel 30 and drive wheel 18.
Rotation of the handle 19 will cause the drive wheel 18 to grip the inside of the can rim thus forcing the cutter wheel around the rim, cutting the rim open as it goes as described in US Patent 5181322 (W090/05108).
a rolling bearing 50 is provided between the spindle 16 and body portion 12, the bearing 50 having a housing 52 and a plurality of axially arranged needle rollers 54 running the length of the casing 52, to provide a substantially frictionless bearing arrangement.
the roller bearing has an axial length at least equal to its radial width and the bearing 50 is of an axial length substantially the same as the width of the region of the body portion 12 in which it is disposed, so as to provide a substantial degree of support.
the housing 52 accommodates first and second roller bearings 56, 58 disposed at opposed ends of the casing 52, with a packing member 60 being disposed between the bearings 56, 58.
the inventor has found that the use of a rolling bearing such as the needle roller bearing 50 (a choice of bearing arrangement to the inventor's knowledge never before used with a manually operated kitchen implement) substantially improves the operability of the device

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Devices For Opening Bottles Or Cans (AREA)

EP19930304404 1992-06-09 1993-06-07 Dosenöffner Expired - Lifetime EP0574214B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB9212170		1992-06-09
GB929212170A GB9212170D0 (en)	1992-06-09	1992-06-09	A can opener

Publications (2)

Publication Number	Publication Date
EP0574214A1 true EP0574214A1 (de)	1993-12-15
EP0574214B1 EP0574214B1 (de)	1996-05-01

Family

ID=10716764

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19930304404 Expired - Lifetime EP0574214B1 (de)	1992-06-09	1993-06-07	Dosenöffner

Country Status (7)

Country	Link
EP (1)	EP0574214B1 (de)
CN (1)	CN1050108C (de)
AU (1)	AU670277B2 (de)
CA (1)	CA2097893A1 (de)
DE (1)	DE69302436T2 (de)
GB (1)	GB9212170D0 (de)
HK (1)	HK1008007A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0754647A1 (de) *	1995-07-21	1997-01-22	Barbara Gisolo	Dosenöffner mit Schneidrad und dazugehöriges Zusammensetzungsverfahren
US7437825B2 (en)	2005-10-12	2008-10-21	Daka Research Inc.	Mechanism for can opener
US7574808B2 (en)	2005-12-12	2009-08-18	Daka Research Inc. (Br. Virg. Isl Corp.)	Mechanism for can opener
US7596874B2 (en)	2005-12-12	2009-10-06	Daka Research Inc.	Mechanism for can opener

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103058110A (zh) *	2013-01-22	2013-04-24	胡云龙	一种安全罐头刀
CN104057416A (zh) *	2014-06-26	2014-09-24	国家电网公司	一种螺栓快速装卸装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2064553A5 (de) *	1969-09-25	1971-07-23	Feuma Veb
WO1990005108A1 (en) *	1988-11-07	1990-05-17	Ibl Products Company Ltd	Improvements in can openers
DE9107019U1 (de) *	1991-06-05	1991-07-25	Kuhnke, Manfred, Ing.(Grad.), 1000 Berlin, De

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3059333A (en) *	1961-09-27	1962-10-23	John C Hockery	Right and left-hand can opener
US5022159A (en) *	1989-11-29	1991-06-11	Chef'n Corporation	Hand-held can opener

1992
- 1992-06-09 GB GB929212170A patent/GB9212170D0/en active Pending
1993
- 1993-05-31 AU AU39892/93A patent/AU670277B2/en not_active Ceased
- 1993-06-05 CN CN93106776A patent/CN1050108C/zh not_active Expired - Lifetime
- 1993-06-07 CA CA 2097893 patent/CA2097893A1/en not_active Abandoned
- 1993-06-07 DE DE1993602436 patent/DE69302436T2/de not_active Expired - Fee Related
- 1993-06-07 EP EP19930304404 patent/EP0574214B1/de not_active Expired - Lifetime
1998
- 1998-06-27 HK HK98107308A patent/HK1008007A1/xx not_active IP Right Cessation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2064553A5 (de) *	1969-09-25	1971-07-23	Feuma Veb
WO1990005108A1 (en) *	1988-11-07	1990-05-17	Ibl Products Company Ltd	Improvements in can openers
DE9107019U1 (de) *	1991-06-05	1991-07-25	Kuhnke, Manfred, Ing.(Grad.), 1000 Berlin, De

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0754647A1 (de) *	1995-07-21	1997-01-22	Barbara Gisolo	Dosenöffner mit Schneidrad und dazugehöriges Zusammensetzungsverfahren
EP1024110A1 (de) *	1995-07-21	2000-08-02	Barbara Gisolo	Dosenöffner mit Schneidrad und dazugehöriges Zusammensetzungsverfahren
US7437825B2 (en)	2005-10-12	2008-10-21	Daka Research Inc.	Mechanism for can opener
CN1948123B (zh) *	2005-10-12	2010-08-11	特嘉科研有限公司	用于开罐器的机构和开罐器
US7574808B2 (en)	2005-12-12	2009-08-18	Daka Research Inc. (Br. Virg. Isl Corp.)	Mechanism for can opener
US7596874B2 (en)	2005-12-12	2009-10-06	Daka Research Inc.	Mechanism for can opener

Also Published As

Publication number	Publication date
DE69302436D1 (de)	1996-06-05
AU670277B2 (en)	1996-07-11
CN1081996A (zh)	1994-02-16
GB9212170D0 (en)	1992-07-22
EP0574214B1 (de)	1996-05-01
HK1008007A1 (en)	1999-04-30
AU3989293A (en)	1993-12-16
CA2097893A1 (en)	1993-12-10
CN1050108C (zh)	2000-03-08
DE69302436T2 (de)	1996-09-26

Legal Events

Date	Code	Title	Description
1993-10-29	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1993-12-15	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI
1994-07-06	17P	Request for examination filed	Effective date: 19940509
1995-01-18	17Q	First examination report despatched	Effective date: 19941201
1996-02-29	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-03-14	ITPR	It: changes in ownership of a european patent	Owner name: C.NE EPO REG. 20;MAXFAT TRADING & MARKETING (FAR E
1996-03-15	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1996-03-15	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
1996-05-01	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI
1996-05-15	RAP2	Party data changed (patent owner data changed or rights of a patent transferred)	Owner name: MAXPAT TRADING & MARKETING (FAR EAST) LIMITED
1996-05-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PUE Owner name: MIKE & KREMMEL LIMITED TRANSFER- MAXPAT TRADING &
1996-06-05	REF	Corresponds to:	Ref document number: 69302436 Country of ref document: DE Date of ref document: 19960605
1996-06-28	ET	Fr: translation filed
1996-07-29	ITF	It: translation for a ep patent filed	Owner name: MODIANO & ASSOCIATI S.R.L.
1997-03-07	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1997-04-23	26N	No opposition filed
1998-07-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: TROESCH SCHEIDEGGER WERNER AG
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2003-06-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20030610 Year of fee payment: 11
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