Source: http://www.google.com/patents/US4651428?dq=5251294
Timestamp: 2014-09-19 22:06:14
Document Index: 787031097

Matched Legal Cases: ['art. 3', 'art. 5', 'art 3', 'art 4', 'art 3', 'art 9', 'art 10']

Patent US4651428 - Pressurised reservoir closure device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsClosure device for a pressurized reservoir comprising a two part cap, an er locking part and a lower seal part on the base of which is mounted a rigid rod constituting measuring means. A resilient disc is displacabl to seal off a lower, apertured base of a casing of the device and lies, on the face of...http://www.google.com/patents/US4651428?utm_source=gb-gplus-sharePatent US4651428 - Pressurised reservoir closure deviceAdvanced Patent SearchPublication numberUS4651428 APublication typeGrantApplication numberUS 06/825,900Publication dateMar 24, 1987Filing dateFeb 4, 1986Priority dateFeb 6, 1985Fee statusLapsedPublication number06825900, 825900, US 4651428 A, US 4651428A, US-A-4651428, US4651428 A, US4651428AInventorsAlain P. Allaria, Jacques G. DruetOriginal AssigneeSociete Nationale D'etude Et De Construction De Moteurs D'aviationExport CitationBiBTeX, EndNote, RefManPatent Citations (11), Referenced by (4), Classifications (7), Legal Events (7) External Links: USPTO, USPTO Assignment, EspacenetPressurised reservoir closure deviceUS 4651428 AAbstract Closure device for a pressurized reservoir comprising a two part cap, an er locking part and a lower seal part on the base of which is mounted a rigid rod constituting measuring means. A resilient disc is displacabl to seal off a lower, apertured base of a casing of the device and lies, on the face of the base directed towards an associated reservoir. A tube traversing the base of the casing and parallel to the axis of the casing has the end adjacent to the base of the reservoir which carries a valve of which the opening is controlled by the end of the rigid rod. Opening of the valve permit inlet of liquid from the reservoir to enable the rod to be used to measure the level of liquid.
What is claimed is: 1. A pressurized-reservoir closure device incorporating level measuring means, said device comprisinga hollow cylindrical casing arranged to be mounted in a wall of the reservoir and serving as a filling opening, said casing includinga base with openings therein providing communication with the reservoir, and means for closing off the openings in the casing base, said means including a resilient disc movable against said openings in the base of the casing from the outside of the casing, a lockable cap assembly serving to close off the hollow cylindrical casing, said cap assembly comprising, an upper, locking part engageable with an upper portion of the casing, a lower, seal, part arranged to seal off the casing against passage of liquid under pressure within the reservoir, a rigid rod secured to the lower seal part, extending within the casing and serving as a liquid level indicator, and an elongate tube transversing the said base of the casing and, containing said rigid rod, said tube having at its lower end, beyond said base,a valve operable by said rod, a valve being in an open configuration when the seal part of the cap assembly is in its operative location. 2. A device according to claim 1 wherein said lower, seal, part comprisesa circular base, an annular skirt extending from the base and having an annular edge portion remote from said circular base, and an O-ring seal mounted on said annular edge portion said casing defining a seal surface which in the operative configuration co-operates with said O-ring seal of the lower, seal, part. 3. A device according to claim 2, wherein said circular base comprisesa tubular extension co-axial with said annular skirt, and said upper, locking part comprises a sliding part, means for retaining the sliding part for limited motion, said sliding part being movable relatively to said tubular extension of the lower, seal part, resilient means biasing the said sliding part and the lower seal part away from one another, and means operable from externally of the associated reservoir for overcoming the said resilient menas, whereby to move said rigid rod into engagement with and to open the valve at the lower end of the elongate tube to enable liquid from the reservoir to enter the tube. 4. A device according to claim 3, wherein said resilient means comprisea compression spring mounted within said tubular extension and extending to engage said sliding part and Belleville washers mounted on the inside of the base of the seal part and acting on an end surface of the sliding part. 5. A device according to claim 1 wherein said valve operable by the rigid rod is a ball valve.
SUMMARY OF THE INVENTION According to the present invention there is provided a pressurized-reservoir closure device incorporating level measuring means, said device comprising a hollow cylindrical casing arranged to be mounted in a wall of the reservoir and serving as a filling opening, said casing including a base with openings therein providing communication with the reservoir, and means for closing off the openings in the casing base, said means including a resilient disc movable against said openings in the base of the casing from the outside of the casing, a lockable cup assembly serving to close off the hollow cylindrical casing, said cup assembly comprising, an upper, locking part engageable with an upper portion of the casing, a lower, seal, part arranged to seal off the casing against passage of liquid under pressure within the reservoir, a rigid rod secured to the lower seal part, extending within the casing and serving as a liquid level indicator and an elongate tube traversing the said base of the casing, and containing said rigid rod, said tube having at its lower end, beyond said base, a valve operable by said rod, the valve being in an open configuration when the seal part of the cap assembly is in its operative location.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a closure device in accordance with the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, a closure device in accordance with the invention (FIGS. 1 and 2) comprises a cylindrical casing 1 provided with a flange 2 intended to be secured to material surrounding the filling opening of a reservoir which is pressurised during the start-up of an engine or by a pressurizing system utilising the liquid which is contained therein. The flange 2 is sealed in a manner know per se, to the material defining the periphery of the opening by bolts (not shown), for example. The flange 2 defines a boundrary between two parts of the casing; a part 3 extending beyond the reservoir and forming the filling orifice for the reservoir fluid and a part 4 located within the reservoir and including a base 5. The part 3 has around a part of the periphery of the filling orifice, a conical collar 6 having grooves 7 extending axially of the casing, which are not regularly equally spaced in order to prevent any error in the mounting of the cap, and which extend into the cylindrical part of the casing. The lower ends of the grooves 7 have at a transverse slot 8 or other opening extending circumferentially from right to left and defining a closure position as will be hereinafter explained. Within the interior of the filling opening, the cap is engaged and this has at least two parts: an upper locking part 9 and a lower seal part 10.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS1972543 *Jan 8, 1931Sep 4, 1934Emerol Mfg CoLubricating system for internal combustion enginesUS1988181 *Apr 5, 1933Jan 15, 1935Universal Merit CorpStorage tank gaugeUS2233325 *Jul 26, 1937Feb 25, 1941Alonzo Raines EwellGauge hatchUS2616583 *Mar 20, 1950Nov 4, 1952Steel Products Eng CoFiller cap assemblyUS3338457 *Dec 23, 1965Aug 29, 1967Charles TygenhofAutomobile radiator capUS3722102 *Feb 24, 1971Mar 27, 1973Gits Bros Mfg CoDip stickUS4368579 *Mar 31, 1981Jan 18, 1983Daimler-Benz AktiengesellschaftLocking cap for an oil gauge pipeUS4480470 *Jun 1, 1982Nov 6, 1984Tussing Dennis MFor a fuel tankUS4531293 *Feb 3, 1984Jul 30, 1985Grinde James EGauge for indicating quantity of mixture components to be added to a tankFR499206A * Title not availableFR2500412A1 * Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS5544419 *Apr 28, 1995Aug 13, 1996Westinghouse Air Brake CompanyDipstick assemblyUS6926121Oct 4, 2002Aug 9, 2005Pratt & Whitney Canada Corp.Oil filter cap with ball valve anti-sticking deviceUS8186074Aug 22, 2007May 29, 2012Caterpillar Inc.Fluid level gauge having swivel bladeWO2004031543A1 *Aug 22, 2003Apr 15, 2004Roger GatesOil filler cap with ball valve anti-sticking device* Cited by examinerClassifications U.S. Classification33/721International ClassificationB64D37/10, F16N29/00Cooperative ClassificationF16N29/00, B64D37/10European ClassificationB64D37/10, F16N29/00Legal EventsDateCodeEventDescriptionJun 1, 1999FPExpired due to failure to pay maintenance feeEffective date: 19990324Mar 21, 1999LAPSLapse for failure to pay maintenance feesOct 13, 1998REMIMaintenance fee reminder mailedAug 25, 1994FPAYFee paymentYear of fee payment: 8Jul 9, 1990FPAYFee paymentYear of fee payment: 4Jan 9, 1990CCCertificate of correctionDec 16, 1986ASAssignmentOwner name: SOCIETE NATIONALE D ETUDE ET DE CONSTRUCTION DE MOFree format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:ALLARIA, ALAIN P.;DRUET, JACQUES G.;REEL/FRAME:004648/0762Effective date: 19860128Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ALLARIA, ALAIN P.;DRUET, JACQUES G.;US-ASSIGNMENT DATABASE UPDATED:20100524;REEL/FRAME:4648/762Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ALLARIA, ALAIN P.;DRUET, JACQUES G.;REEL/FRAME:004648/0762RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google