Source: http://www.google.com/patents/US5108709?dq=6,123,819
Timestamp: 2015-05-23 08:05:52
Document Index: 544613274

Matched Legal Cases: ['art 2', 'art 4', 'arts 2', 'art 2', 'art 4', 'arts 2', 'art 2', 'art 4']

Patent US5108709 - Color-coded disposable-filter holder - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe color coded disposable-filter holder 1 of the invention comprises of a first molded pane-like housing part 2 with an intake stub 3 and a second molded pane-like housing part 4 comprising a discharge stub 5. The two housing parts 2, 4 are rigidly joined in pressure-resistant and hermetic manner at...http://www.google.com/patents/US5108709?utm_source=gb-gplus-sharePatent US5108709 - Color-coded disposable-filter holderAdvanced Patent SearchPublication numberUS5108709 APublication typeGrantApplication numberUS 07/587,923Publication dateApr 28, 1992Filing dateSep 25, 1990Priority dateSep 29, 1989Fee statusLapsedAlso published asDE58906719D1, EP0419731A1, EP0419731B1Publication number07587923, 587923, US 5108709 A, US 5108709A, US-A-5108709, US5108709 A, US5108709AInventorsRobert Bugar, Asok Chakraborty, Herbert UrlaubOriginal AssigneeSchleicher & Schuell GmbhExport CitationBiBTeX, EndNote, RefManPatent Citations (10), Referenced by (9), Classifications (30), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetColor-coded disposable-filter holder
US 5108709 AAbstract
The color coded disposable-filter holder 1 of the invention comprises of a first molded pane-like housing part 2 with an intake stub 3 and a second molded pane-like housing part 4 comprising a discharge stub 5. The two housing parts 2, 4 are rigidly joined in pressure-resistant and hermetic manner at their radially outer zones 7 pointing to each other while enclosing a planar filter 6. This disposable-filter holder is provided with a color coding consisting of a dyed plastic in the form of a prefabricated plastic ring or plastic clip 9 present in an annular groove 8 in the radially outer zone of the disposbale-filter holder.
1. A plastic, color-coded disposable-filter holder comprising a first molded housing part including an intake stub and a second housing part including a discharge stub, said first and second housing parts being rigidly joined together in a hermetic and pressure-resistant manner at their radially outer zones contacting one another and defining a radially outer zone of the disposable filter holder, with a planar filter inserted between the first and second housing parts, and with a color coding of a dyed plastic present in an annular groove in the radially outer zone of the disposable-filter holder,wherein the color coding is a prefabricated plastic ring or plastic clip. 2. Color coded disposable-filter holder defined in claim 1, wherein the plastic ring is a cross-sectionally planar ring (9) and the annular groove (8) is present in the circumference (10) of the first housing part (2) and/or of the second housing part (4).
The disposable-filter holder of the invention is applicable in particular for pressure filtration. The terms "filter" and "pressure filtration" herein also cover similar procedures such as ultra-filtration, reverse osmosis and plain gravity filtration.
In the light of this state of the art, the object of the present invention is to create a disposable-filter holder of the above species which shall be economical and for which the hermeticity and locking functions shall be separate and which furthermore is color-coded in reliable and environment-fast manner.
The invention is elucidated below by two illustrative embodiments in relation to the FIGURES.
The disposable-filter holder 1 of the invention shown in FIG. 1 consists of a first and essentially pane-like housing part 2 with an intake stub 3 and of a second and also pane-like housing part 4 comprising a discharge stub 5. The intake stub 3 and the discharge stub 5 are shaped like tubular nozzles and each comprise a continuous and mutually aligned borehole 13 and 14.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS2879207 *Nov 22, 1954Mar 24, 1959Millipore Filter CorpFiltration and incubation unitUS3932153 *May 23, 1974Jan 13, 1976John ByrnsNebulizer bacteria filterUS4111807 *Oct 11, 1977Sep 5, 1978Gelman Instrument CompanyMouth filter for use with pipettesUS4170056 *Jun 6, 1977Oct 9, 1979Baxter Travenol Laboratories, Inc.Blood filterUS4713900 *Dec 10, 1984Dec 22, 1987Calloway Jr LutherBowl emblemsUS4829641 *Jun 22, 1987May 16, 1989First Brands CorporationEnhanced color change interlocking closure stripUS4874513 *Jan 19, 1989Oct 17, 1989Schleicher & Schuell GmbhDisposable filter unit with filter support means at both sides of the filter elementUS4986904 *Nov 30, 1989Jan 22, 1991Schleicher & Schuell GmbhColor coded disposable filter holderDE2837058A1 *Aug 24, 1978Mar 6, 1980Schleicher & Schuell GmbhEinmalfilter fuer die druckfiltration und verfahren zu seiner herstellungEP0202884A2 *May 16, 1986Nov 26, 1986Kara International, Inc.Article with identifying device* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS5269917 *Feb 28, 1992Dec 14, 1993Millipore CorporationFiltration apparatus having stress relief grooveUS5556541 *Apr 26, 1994Sep 17, 1996Filtertek, Inc.Process for making hermetically sealed filter units and filters made therebyUS5688460 *Jun 20, 1996Nov 18, 1997Filtertek Inc.Process for making hermetically sealed filter unitsUS5762796 *Feb 14, 1997Jun 9, 1998Parker-Hannifin CorporationColor coded side seam label for filter elementUS5853577 *Sep 22, 1997Dec 29, 1998Spx CorporationOrbital vibration welded filterUS6033455 *Jun 29, 1998Mar 7, 20003M Innovative Properties CompanyRepeatedly usable filter frame and filter for fluid using the sameUS6096197 *Dec 11, 1997Aug 1, 2000Hughes; Douglass E.Shower filter for chlorine removal and scale deposit preventionUS6267887Jan 24, 2000Jul 31, 2001Douglass E. HughesShower filter for chlorine removal and scale deposit preventionUS6966443 *Sep 29, 2003Nov 22, 2005Ridge Robert AParaffin filter element* Cited by examinerClassifications U.S. Classification422/560, 210/446, 55/503, 403/338, 55/510, 210/94, 422/534International ClassificationB01D29/01, G09F3/00, B29C65/02, B29C65/50, B29C65/00Cooperative ClassificationG09F3/00, B29C66/124, B29C66/54, B01D29/012, B01D2201/52, B29C65/5042, B29C65/02, B29L2031/14, Y10T403/648, B29C66/305, B29C66/306European ClassificationB29C65/02, B29C66/305, B29C65/50B, B29C66/54, B29C66/306, G09F3/00, B01D29/01BLegal EventsDateCodeEventDescriptionJul 11, 2000FPExpired due to failure to pay maintenance feeEffective date: 20000428Apr 30, 2000LAPSLapse for failure to pay maintenance feesNov 23, 1999REMIMaintenance fee reminder mailedOct 23, 1995FPAYFee paymentYear of fee payment: 4Aug 26, 1991ASAssignmentOwner name: SCHLEICHER & SCHUELL GMBHFree format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:BUGAR, ROBERT;CHAKRABORTY, ASOK;URLAUB, HERBERT;REEL/FRAME:005834/0050;SIGNING DATES FROM 19900902 TO 19900906RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services