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Derwent
Derwent
Industry and
Technology Patents
Profiles
Computing & Control
Information Management Systems
© 2001 Derwent Information
ISSN: 1463-7359
3
T
YPICAL
D
ERWENT
A
BSTRACT
1999-264822/23
KNECHT FILTERWERKE GMBH
DE-19746752-A1
Annular filter insert for IC engine oil or fuel filter
Novelty: An annular filter insert has a sealing ring which, when the insert is
fitted in a filter housing, is clamped between a carrier frame and the filter housing
or a housing nozzle for seating tightly on an associated end disk.
Use: Especially for an IC engine oil or fuel filter.
Advantage: The insert can be mass produced at low cost and the filter material
is reliably protected against damage since axial stresses are transmitted directly
by the sealing ring to the carrier frame.
Detailed Description: An annular filter insert has a carrier frame (2) in the
interior clean space (4) within the insert, a filter material (3) surrounding the
carrier frame, an end disk (5) with an opening (6) communicating with the clean
space at one or each end face of the filter material and a sealing ring projecting
into the or each end disk opening. The sealing ring (7) presses directly on the or
each carrier frame end face, can move axially in the associated end disk and,
when the insert (1) is fitted in the filter housing (17), is axially clamped between
the carrier frame and the filter housing (17) or a housing nozzle (19) for seating
tightly on the associated end disk.
Description of Drawing(s): The drawing shows a longitudinal cross-sectional
view of a filter insert.
Filter insert 1
Plastic carrier frame 2
Filter material 3
Clean space 4
End disk 5
End disk opening 6
Sealing ring 7
Filter housing 17
Filter housing nozzle 19
Company Code: KNEC-
Publication Date: 1999.04.29
Drawing: 1/3
Pages: 5
Inventors: WAIBEL H
IPC: B01D 27/08; F01M 11/03
Derwent Classes: J01 Q51
Latest Priority: 1997.10.23 1997DE-1046752
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Key to Flagged Terms
1 . . . . . . Primary Accession Number Year
2 . . . . . . Primary Accession Number
3 . . . . . . Derwent Update
4 . . . . . . Patent Assignee Name
5 . . . . . . Patent Issuing Region
6 . . . . . . Patent Number
7 . . . . . . Patent Status
8 . . . . . . Derwent Enhanced Title
9 . . . . . . Image/Structure
10 . . . . . Novelty (Mandatory field for all major countries)
This section describes the inventive step or steps which characterise
the invention, and provides a brief, succinct description of how the
invention claims to be a non-obvious improvement over the prior art.
It is written to include details, figure references and values specifically
relating to the inventions novel features.
This section may encapsulate the whole invention if it is possible to
fully describe the inventive step without further details.
11 . . . . . Use
12 . . . . . Advantage
13 . . . . . Detailed Description
This section is included when it is not possible to describe the
complete inventive-step in the NOVELTY section, and a more
detailed explanation of the scope and context of the invention is
required.
It is used to cover all the main independent claims of the patent,
except those, which are more suitably covered in other fields (e.g.
specific applications that are claimed are included in the USE section).
14 . . . . . Description of Drawings
This section is used to provide a description of the drawing(s) included
as part of the abstract record, and includes a parts list which provides
a description of the items shown in the selected drawing.
15 . . . . . Bibliographic Data
Country Coverage & Codes
Below are the 40 patent issuing authorities covered by Derwent, together with
their associated two-character country codes.
Australia . . . . . . . . . . . . . . . . . .AU
Austria . . . . . . . . . . . . . . . . . . . .AT
Belgium . . . . . . . . . . . . . . . . . . .BE
Brazil . . . . . . . . . . . . . . . . . . . . .BR
Canada . . . . . . . . . . . . . . . . . . .CA
China . . . . . . . . . . . . . . . . . . . .CN
Czechoslovakia . . . . . . . . . . . . . .CS
Czech Republic . . . . . . . . . . . . . .CZ
Denmark . . . . . . . . . . . . . . . . . .DK
East Germany . . . . . . . . . . . . . .DD
European . . . . . . . . . . . . . . . . . .EP
Finland . . . . . . . . . . . . . . . . . . . .FI
France . . . . . . . . . . . . . . . . . . . .FR
Germany . . . . . . . . . . . . . . . . . .DE
Hungary . . . . . . . . . . . . . . . . . .HU
Ireland . . . . . . . . . . . . . . . . . . . . .IE
Israel . . . . . . . . . . . . . . . . . . . . . .IL
Italy . . . . . . . . . . . . . . . . . . . . . .IT
Japan . . . . . . . . . . . . . . . . . . . . .JP
Luxembourg . . . . . . . . . . . . . . . .LU
Mexico . . . . . . . . . . . . . . . . . . .MX
Netherlands . . . . . . . . . . . . . . . .NL
New Zealand . . . . . . . . . . . . . . .NZ
Norway . . . . . . . . . . . . . . . . . . .NO
PCT (World) . . . . . . . . . . . . . . .WO
Philippines . . . . . . . . . . . . . . . . .PH
Portugal . . . . . . . . . . . . . . . . . . .PT
Romania . . . . . . . . . . . . . . . . . .RO
Russian Federation . . . . . . . . . . .RU
Singapore . . . . . . . . . . . . . . . . .SG
Slovakia . . . . . . . . . . . . . . . . . . .SK
South Africa . . . . . . . . . . . . . . . .ZA
South Korea . . . . . . . . . . . . . . . .KR
Soviet Union . . . . . . . . . . . . . . .SU
Spain . . . . . . . . . . . . . . . . . . . . .ES
Sweden . . . . . . . . . . . . . . . . . . .SE
Switzerland . . . . . . . . . . . . . . . .CH
Taiwan . . . . . . . . . . . . . . . . . . .TW
United Kingdom . . . . . . . . . . . . .GB
USA . . . . . . . . . . . . . . . . . . . . .US
Plus:
Research Disclosures . . . . . . . . . .RD
Patent Families
A document relating to an invention not already recorded on the Derwent database
is designated as a Basic. Further documents relating to the same invention are
designated as Equivalent.
The Basic document and its Equivalents form a patent family to which a unique
Derwent Primary Accession Number, (PAN) is assigned.
The PAN is always shown in the printed abstracts and is one of the key reference
points for patent records in Derwents World Patents Index on-line database.
For further information, please consult your local Sales Office. 4 5
Derwent
Industry and
Technology Patents
Profiles
Technical Contents
Computing & Control
Information Management
Systems
Computer systems for the organisation and retrieval of information and data
stored in e.g. databases. Content analysis and indexing using e.g. linguistic
processing and thesauri. Search and retrieval tools and schemes, e.g. algorithms
for searching large databases and query formulation.
Systems for analysis of retrieved information e.g. statistical and graphical result
presentation. Information systems and networks for selected applications e.g.
geographical and medical. Distributed, relational, object-oriented and deductive
databases and database management systems. Image and video databases.
Database applications e.g. database software applications and systems using
databases. 6 7
Coverage in Derwent Update: 200101
K
IND
L
ATEST
P
UB
D
ATE
L
ATEST
S
ERIAL
P
ATENTS
K
IND
L
ATEST
P
UB
D
ATE
L
ATEST
S
ERIAL
P
ATENTS
Austria (AT)
A
15 November 2000
200008002
5
Australia (AU)
A
30 November 2000
200064068
1228
B
30 November 2000
727131
360
Belgium (BE)
A3
3 October 2000
1012396
3
A6
3 October 2000
1012354
1
Brazil (BR)
A
5 December 2000
200003359
472
Canada (CA)
A1
18 November 2000
2322548
170
C
5 December 2000
2290910
194
Switzerland (CH)
A5
15 November 2000
690606
4
China (CN)
A
20 September 2000
1267186
128
Czech Republic (CZ)
A3
15 November 2000
200000938
1
Denmark (DK)
A
18 November 2000
200001556
7
European (EP)
A1
29 November 2000
1055827
187
A2
29 November 2000
1056165
264
Spain (ES)
A1
1 November 2000
2149717
21
Finland (FI)
A
30 September 2000
9902664
15
B1
15 November 2000
106061
8
France (FR)
A1
1 December 2000
2794198
132
A3
20 October 2000
2792350
1
Great Britain (GB)
A
20 December 2000
2351216
155
B
20 December 2000
2349744
152
Ireland (IE)
B
4 October 2000
81338
5
B3
4 October 2000
81333
5
Israel (IL)
A
28 September 2000
122929
7
Japan (JP)
A
7 November 2000
2000312045
3151
B1
20 November 2000
3110733
11
B2
11 December 2000
3117499
2966
W
12 December 2000
2000516800
357
Korea, Republic of (KR)
A
6 March 2000
2000014348
1200
B1
2 August 1999
212872
47
Mexico (MX)
A1
1 August 1999
9801482
21
A2
1 June 1999
9901753
1
B
29 October 1999
193896
329
Netherlands (NL)
C2
20 September 2000
1012884
5
C6
8 June 2000
1010750
1
Norway (NO)
A
13 November 2000
200004762
37
B1
11 December 2000
309120
50
New Zealand (NZ)
A
27 October 2000
506770
7
Philippines (PH)
A
8 May 1997
30406
2
Research Disclosure (RD)
A
10 August 2000
436186
23
Romania (RO)
B
29 September 2000
116021
5
B1
30 August 2000
115996
3
Russian Federation (RU)
C1
10 August 2000
215424