baber/WOPTO huggingface dataset:
Patent DE-10248191-A1 (DE)
Title: Material to absorb mechanical energy, and especially impact forces at pneumatic tire side walls, has layer(s) of intersecting yarns/filaments to form cells filled with pliable plugs
Inventor: HEPP RAINER
IPC: F16F7/00
Filed: 2002-10-16
Abstract: The material (100) to absorb mechanical energy, and especially from impact blows, is in a single or multiple layer structure of textile yarns and/or metal/synthetic filaments (110) at regular or irregular intervals to form cells (120). The cells are filled with plugs (130) of a rigid or pliable material or encapsulated gel in a plastics shell. The assembly is encapsulated in a vulcanized rubber or a plastics.
Patent DE-10248477-A1 (DE)
Title: Inductor-capacitor high pass filter circuit for multiplexer used in radio communication apparatus, has grounded trap circuit which is connected to node between high pass filter circuits, to shunt input and output terminals
Inventor: YAMAGUCHI NAOTO
IPC: H01P1/203
Filed: 2002-10-17
Abstract: The high pass filter circuits (HPF1,HPF2) have respective capacitors (C1,C2) and inductors (L1,L2) which are connected in series between and parallel with the input and output terminals (26,27), respectively. A grounded trap circuit (T) is connected to a node between the high pass filter circuits, so as to shunt the input and output terminals.  Independent claims are also included for the following:  (1) a laminated LC high pass filter device;  (2) a multiplexer; and  (3) a radio communication apparatus.
Patent DE-10254922-A1 (DE)
Inventor: GIORGETTA SILVIO
IPC: C09J7/02
Filed: 2002-11-25
Abstract: A moulded foam article made of closed cell or open cell foamed polymers, wherein at least one of the surfaces is provided completely or partially with a release coating of a cured, modified silicone compound. Such a molded body is preferably a foam web.
Patent DE-10300070-A1 (DE)
Title: Axialkolbenmaschine, Rückzugplatte und Verfahren zum Herstellen einer Rückzugplatte
Inventor: BECK JOSEF
IPC: F04B1/12
Filed: 2003-01-03
Abstract: Die Erfindung betrifft eine Axialkolbenmaschine sowie eine Rückzugplatte für eine Axialkolbenmaschine und ein Verfahren zur Herstellung einer Rückzugplatte. Die Rückzugplatte (24) ist scheibenförmig ausgebildet und weist eine zentrale Durchgangsöffnung (32) auf, die von einem Kragen (39) umfasst ist, der sich von einer ersten Oberfläche (34, 34') der Rückzugplatte (24) mit einer axialen Richtungskomponente erstreckt. Die Rückzugplatte (24) weist außerdem mehrere Gleitschuhaufnahmeöffnungen (36) auf, wobei die Gleitschuhaufnahmeöffnungen (36) jeweils von einem Führungskragen (38) umfasst sind, der sich von einer zweiten Oberfläche der Rückzugplatte (24) entgegengesetzt zu dem Kragen (39) der zentralen Durchgangsöffnung (32) mit einer axialen Richtungskomponente erstreckt.
Patent DE-10303345-A1 (DE)
Title: Vehicle door inner cladding has stowage compartment with transverse wall near end of door opposite stop side; transverse wall has access opening for stowage compartment in cladding, closure flap
Inventor: BACHORSKI TOMASZ
IPC: B60R7/04
Filed: 2003-01-29
Abstract: The cladding or trim (6) has a stowage compartment (18) and a transverse wall (16) near the end of the door opposite the stop side (3) of the door (2). The transverse wall has an access opening (17) for a stowage compartment in the door's inner cladding. The access opening can be closed by a flap (20). The flap has an associated snap closure arrangement.
Patent DE-10304002-A1 (DE)
Title: Verfahren zur Halterung eines Füllschuhs für eine Filterkammer
Inventor: BONN HEINZ
IPC: B01D25/21
Filed: 2003-02-01
Abstract: Offenbart wird ein Verfahren zur Halterung eines Füllschuhs (1) für eine Filterkammer (12), die in einer Filterpresse entlang einer Trennebene (13) zwischen einer unteren und einer auf dieser bündig aufliegenden oberen Filterplatte (11) ausgebildet ist und die durch mindestens einen Kanal (9) in dem Füllschuh (1) hindurch mit einem Medium beaufschlagbar ist, wobei der Füllschuh (1) in einer in der oberen Filterplatte (11) ausgebildeten Aufnahme (10) teilweise aufgenommen und bei geschlossener Filterkammer (12) auf der unteren Filterplatte abgestützt wird. Offenbart sind des Weiteren ein Füllschuh (1) und eine Filterplatte (11) zur Ausführung des Verfahrens. DOLLAR A Um ein unbeabsichtigtes Lösen des Füllschuhs (1) aus der oberen Filterplatte (11), insbesondere ein Herausfallen, beim Öffnen der Filterkammer (12) ohne den Einsatz separater Mittel zur Halterung, insbesondere ohne Schrauben, zu vermeiden, wird vorgeschlagen, dass der Füllschuh (1) beim Öffnen der Filterkammer (12) in der Aufnahme (10) verkantet wird.
Patent DE-10304462-A1 (DE)
Title: Rundschalttisch
Inventor: WEIS DIETER
IPC: B23Q5/36
Filed: 2003-02-04
Abstract: Die Erfindung betrifft einen Rundschalttisch mit einer stationären Basiseinheit und einem darauf drehbar gelagerten, mittels eines Antriebs relativ zur Basiseinheit antreibbaren Teller, bei dem der Antrieb durch mehrere, im Umfangsbereich des Tellers angeordnete Einzelantriebselemente gebildet ist.
Patent DE-10305319-A1 (DE)
Title: Treating bacterial infections of respiratory organs comprises local administration of ciprofloxacin, enrofloxacin or their sparingly soluble salts in solid form
Inventor: ENDERMANN RAINER
IPC: A61K9/00
Filed: 2003-02-10
Abstract: Treating bacterial infections of respiratory organs comprises local administration of ciprofloxacin, enrofloxacin or their sparingly soluble salts in solid form. An independent claim is also included for devices that are suitable for inhalative application of solid agents and contain compositions comprising ciprofloxacin, enrofloxacin or their sparingly soluble salts in solid form. ACTIVITY : Antibacterial. In a test, rats infected intratracheally with Pseudomonas aeruginosa (DSM 12055) were treated 1 and 4 hours post-infection by intratracheal administration of ciprofloxacin betaine (2.5 mg/kg). The log germ count reduction measured in lung homogenates was -5.8, compared with -1.1 for intratracheally administered ciprofloxacin hydrochloride and -2.8 for intravenously administered ciprofloxacin hydrochloride. MECHANISM OF ACTION : None given.
Patent DE-10306458-A1 (DE)
Title: Method for determining control voltage of piezoelectric actuator of injection valve varying control voltage depending on the control duration of piezoelectric actuator
Inventor: SCHWEIDLER PETER
IPC: F02D41/38
Filed: 2003-02-17
Abstract: The method involves varying the control voltage (Ua) depending on the pressure that is admitted on the liquid, which is injected into a combustion chamber of a combustion engine. The control voltage is varied depending on the control duration of the piezoelectric actuator. The variation of the control voltage is carried out in different operation points of the combustion engine and/or the injection valve.
Patent DE-10309376-A1 (DE)
Title: Active building cover, has hollow space that is formed between internal and external layers of building, and which is filled with air-permeable insulating material
Inventor: SCHANKULA ARTHUR
IPC: F24F7/10
Filed: 2003-03-03
Abstract: A hollow space between the external and internal layers of a building is provided with a variable ventilation device and is filled with air-permeable insulating material. The ventilation device is accessible from a window or skylight for maintenance purposes. Water flows through a heat exchanger mat behind the internal layer for heating or cooling the space. Independent claims are also included for the following: (a) an external wall component; and (b) an outside wall and a roof member.
Patent DE-10311331-A1 (DE)
Title: Front end structure for vehicle e.g. light car, has hood with hood stopper that collides with stopper surface of top beam during hood closing operation
Inventor: SUGIYAMA TOSHIKI
IPC: B62D25/08
Filed: 2003-03-14
Abstract: A hood (30) is installed at the upper end of a carrier (10) which is fixed to the front end of a vehicle body. The carrier has a top beam (12) that is integrated and horizontally projects from the upper end of a pillar (11). The hood has a hood stopper (31) that collides with the stopper surface (12a) of the top beam during closing operation of the hood.
Patent DE-10312468-A1 (DE)
Title: Elektronische Endoskopeinrichtung
Inventor: KOBAYASHI HIROYUKI
IPC: G02B23/24
Filed: 2003-03-20
Abstract: Eine elektronische Endoskopeinrichtung umfasst eine Bildaufnahmevorrichtung (18), eine Objektivoptik (16), einen Korrekturspeicher (42), einen Maskendatenspeicher (22) und eine Korrektureinheit (120). Die Objektivoptik (16) erzeugt ein Objektbild auf einer Abbildungsfläche der Bildaufnahmevorrichtung (18). Der Korrekturspeicher (42) speichert eine Korrekturinformation, welche die Fehlausrichtung zwischen einem von der Objektivoptik (16) auf der Abbildungsfläche erzeugten Schärfenbereich (FR) und einem effektiven Bilderfassungsbereich (KR) der Bildaufnahmevorrichtung (18) angibt. Der Maskendatenspeicher (22) speichert Daten, die für eine elektronische Maskierung vorgesehen sind. Die Korrektureinheit (120) setzt einen elektronischen Maskenbereich (MW1 bis MW4) entsprechend der Kompensationsinformation um.
Patent DE-10312874-A1 (DE)
Title: Detachable whirl mat for domestic bathtubs, includes soft foam body provided with compression zones that are tightly covered by detachable plugs
Inventor: FRENKEL WALTER
IPC: A61H33/00
Filed: 2003-03-22
Abstract: The detachable whirl mat includes a soft foam body (1) provided with compression zones (1b) that are tightly covered by detachable plugs (2).
Patent DE-10314248-A1 (DE)
Title: Innenrückblickspiegel
Inventor: FLEMMING ANDRE
IPC: B60R1/04
Filed: 2003-03-29
Abstract: Die vorliegende Erfindung betrifft einen Innenrückblickspiegel (1) zur Befestigung an einer Windschutzscheibe (9) eines Fahrzeugs, mit einer Konsole (5), die mit einer Kontaktseite (10) an der Windschutzscheibe (9) befestigbar ist, mit einer Konsolenabdeckung (6), die mit einer Halteeinrichtung (13) an der Konsole (5) befestigt ist, und mit einem Spiegelgehäuse (2), das eine Spiegelfläche (3) enthält und über einen Tragfuß (4) mit der Konsolenabdeckung (6) verbunden ist. DOLLAR A Zur Reduzierung einer Verletzungsgefahr im Kollisionsfall besitzt die Halteeinrichtung (13) ein an der Konsole (5) ausgebildetes Widerlagerelement (14) und ein an der Konsolenabdeckung (6) angebrachtes Greifelement (15), wobei das Greifelement (15) das Widerlagerelement (14) in einer Halterichtung (19) hintergreift und wobei ein Schiebesitz (20) vorgesehen ist, der eine Relativverstellung zwischen Greifelement (15) und Widerlagerelement (14) in einer Kollisionsrichtung (21) ermöglicht.
Patent DE-10322345-A1 (DE)
Title: Loss reporting system for lost, mislaid or stolen mobile telephone, or other object, containing sensor measuring distance to another object and transmitting respective alarm signals on excess of preset distance
Inventor: GNAIER FRANK
IPC: G08B13/14
Filed: 2003-05-17
Abstract: Mobile telephone, umbrella or other object is fitted with sensor measuring distance to another object and, in exceeding respective distance, transmitting alarm signals. Prior to reaching preset distance, mobile telephone is out of action, or after reaching preset distance its function can be restarted only by input of code, thus protecting possibly stored data.
Patent DE-10324892-A1 (DE)
Title: Polymerbasierter Werkstoff
Inventor: KOCH MATTHIAS
IPC: C08F4/64
Filed: 2003-06-02
Abstract: Gegenstand der vorliegenden Erfindung ist ein polymerbasierter Werkstoff, der im Wesentlichen aufgebaut ist aus einer Polymer-Matrix, in die mindestens ein fluoriertes Polymeres eingelagert ist, und der dadurch gekennzeichnet ist, dass in der Polymer-Matrix Metalloxid-Partikel nanodispers und homogen verteilt sind, sowie dessen Herstellung und Verwendung.
Patent DE-10326887-A1 (DE)
Title: Mehrstufiges Ölpumpensystem
Inventor: BRUEHL REINHOLD
IPC: F01M1/02
Filed: 2003-06-14
Abstract: Es wird ein mehrstufiges Ölpumpensystem für ein Ölversorgungssystem eines Kraftfahrzeugs mit wenigstens zwei axial nebeneinander angeordneten Ökpumpen (12a, 12b, 12c) vorgeschlagen. DOLLAR A Erfindungsgemäß ist bei dem mehrstufiges Ölpumpensystem jede der Ölpumpen (12a, 12b, 12c) mit einer separaten Antriebsvorrichtung (14a, 14b, 14c) verbunden, sodass die Ölpumpen unabhängig voneinander betreibbar sind. DOLLAR A Anwendungen in Kraftfahrzeugen, insbesondere Personenkraftwagen.
Patent DE-10329832-A1 (DE)
Title: Contact drying process for wood veneers involves use of completely smooth heat-transfer contact surface
Inventor: LEIMEGGER KARL
IPC: F26B7/00
Filed: 2003-07-02
Abstract: The wood veneer contact drying process involves the use of a completely smooth heat-transfer contact surface, this being one of two such surfaces, for which no device to remove the water vapor is necessary. The spacing between the upper and lower contact surfaces in the contact drying device is periodically increased and reduced during the drying process.
Patent DE-10331171-A1 (DE)
Inventor: KURFUERST MANFRED
IPC: C12N15/09
Filed: 2003-07-09
Abstract: A product (X) comprising separate components (A) and (B) which are mixed before use of the mixture for dissociating tissue, is new, where (A) is a neutral protease (NP) from Clostridium histolyticum, not present in a collagenase enzyme preparation and (B) is collagenase or a collagenase enzyme preparation. An independent claim is also included for a method for preparing (X).
Patent DE-10333868-A1 (DE)
Title: Druckregler
IPC: G05D16/06
Filed: 2003-07-24
Abstract: Die Erfindung betrifft einen Druckregler zur Regelung des Gasdrucks eines insbesondere CO¶2¶-haltigen Gases in einer Zapfanlage mit einem Reglergehäuse (2), in welchem ein Regelventil (6) mit einem gegenüber dem Reglergehäuse (2) erlagerbaren Ventilkörper (7) angeordnet ist. Das Reglergehäuse (2) ermöglicht die nachträgliche Eingliederung einer weiteren austauschbaren Regelfeder (48) in Parallelschaltung zur Hauptregelfeder (21) sowie die Eingliederung eines Temperaturweggebers (39). Die Erfindung ermöglicht eine automatische thermisch geregelte Beeinflussung des Sättigungsdruckes in einer Zapfanlage, abhängig von dem getränkespezifischen CO¶2¶-Gehalt bei zunehmender und abnehmender Temperatur durch lineare Annäherung an den kurvenförmigen Sättigungsdampfdruckverlauf innerhalb eines Arbeitsbereiches von z. B. 0 DEG C bis 30 DEG C.
Patent DE-10337571-A1 (DE)
Title: Manufacture of micromechanical pressure sensor, has measuring element formed from resistance layer deposited using sputtering process with airflow in region of deposition
Inventor: GOEBEL HERBERT
IPC: G01L1/22
Filed: 2003-08-14
Abstract: A measuring element (4) in the form of a resistance comprising differently conductive and/or semiconductive materials is formed on a diaphragm (1). A resistance layer is formed by layer deposition using a sputtering process. During the layer deposition, a predetermined airflow is provided in the region of the layer deposition. An independent claim is included for a micromechanical device for detecting pressure.
Patent DE-10337720-A1 (DE)
Title: Solar panel has multiple transparent cells with heat absorbing sheet walls and a reflecting sheet to generate higher vapor pressures than the cells to drive a system
Inventor: BECKER FRIEDRICH
IPC: F24S10/95
Filed: 2003-08-16
Abstract: The radiation from the sun penetrates a transparent cover (1) over the vertically arranged cells (2) within heat insulation (3) so that alternate absorbing cells generate a higher vapor pressure than the others to drive a heat pump or other device (4).
Patent DE-10349022-A1 (DE)
Inventor: SEIBERT MICHAEL
IPC: B61C17/04
Filed: 2003-10-22
Abstract: The rail carriage, and especially for an urban tramway, has a footplate (2) secured to the chassis (1). The driver's compartment has a seat (3) and an instrument panel (5) with the driving controls, together with an instrument cabinet (6) and a footrest. The driving seat, instrument panel and other units are fitted on a footplate section (8), mounted to the chassis within a footplate opening (9), with elastic movements across the direction of travel by a given amount (s).
Patent DE-10353012-A1 (DE)
Title: Sensor free capture of position method e.g. for angle velocity of machine rotor, involves sensor free seizing of situation and angular speed of rotor of machine with Kalman filters used for modeling electrical machine to be processed
Inventor: MUELLER WOLFGANG
IPC: H02P21/00
Filed: 2003-11-13
Abstract: The method involves sensor free seizing of a situation and the angular speed of a rotor of a machine (5). Kalman filters are used for modeling of the electrical machine to be processed and using model equations of the machine, magnet wheel tensions are transmitted and computed. An independent claim is included for a device.
Patent DE-10353744-A1 (DE)
Inventor: VATH KLAUS
IPC: B60J5/04
Filed: 2003-11-17
Abstract: The profiled frame (1) for the door structure of a motor vehicle's door has a hollow profile (2) formed by a wall and extending over the length of the profiled frame. The hollow profile especially in the region of a vertically extending edge of the door structure has a varying cross section over its length. The thickness of the wall of the hollow profile is constant over its length, and the wall of the hollow profile in any case in sections of the hollow profile with reduced cross section has a progression providing an additional wall length (3). Independent claims are also included for the following: (A) a motor vehicle's door with the aforesaid profiled frame; (B) a tool for the widening of the cross section of a hollow profile of a profiled frame; and (C) a method for the manufacture of a profiled frame for the door structure of a motor vehicle's door.
Patent DE-10359184-A1 (DE)
Title: Sensor zur Erfassung der Position der Sonne
Inventor: KUEHNAU UWE
IPC: G01J1/42
Filed: 2003-12-17
Abstract: Die Erfindung befasst sich mit einem Sensor 4 zur Erfassung der Position der Sonne in Bezug auf ein Kraftfahrzeug mit einer Lichtleitvorrichtung 6; 8 mit mindestens einem Photodetektor 5. DOLLAR A Erfindungsgemäß ist vorgesehen, dass die Lichtleitvorrichtung 6; 8 ein trichterförmiger Lichtleiter mit einer sonnennahen Eintrittsfläche 62; 82 und einer sonnenfernen Austrittsfläche 63; 83 ist und die direkten Strahlen der Sonne, die in den Lichtleiter durch die Eintrittsfläche 62; 82 eintreten, an den Seitenflächen 64, 64', 64''; 84, 84', 84'', 86 des Lichtleiters total reflektiert werden.
Patent DE-19500072-A1 (DE)
Title: Amplifying and separating mixture of frequencies into several frequency ranges esp. for multipath loud speaker combinations
Inventor: RICHT OSKAR HUBERT
IPC: H04R3/12
Filed: 1995-01-03
Abstract: The method is for amplification and separation of a mixture of frequencies using an active filter. The frequency determining parts of the filter include e.g. RC components. The active elements e.g. tubes, transistors operational amplifiers, serve only for signal amplification and/or decoupling. Preferably after each first order frequency determining part, a decoupling and/or amplification results by means of active elements. Higher order filters are obtained by cascading first order filters. The signal amplification and/or decoupling may result from an impedance conversion stage formed of two cascaded complementary transistors.
Patent DE-19502234-A1 (DE)
Title: Multichamber bag
Inventor: UFERMANN RUEDIGER
IPC: A61J1/00
Filed: 1995-01-25
Abstract: The multichamber bag with at least two sepd. chambers, to form an upper chamber and a mixing chamber for infusion therapy and parenteral feeding, has a second suspension opening (26) at the periphery of the mixing chamber (16) opposite the outlet (22).
Patent DE-19504423-A1 (DE)
Title: New carbamoyl carboxylic acid hydrazide derivs.
Inventor: WAGNER OLIVER DR
IPC: A01N47/12
Filed: 1995-02-10
Abstract: Carbonylcarboxylic acid hydrazide derivs. of formula (I) and their salts are new. R<1> = 1-8C alkyl, 2-8C alkenyl or 2-8C alkynyl (these 3 gps. each opt. partially or completely halogenated and opt. substd.), 3-7C cycloalkyl, 3-7C cycloalkenyl (these 2 gps. each opt. partially or completely halogenated and opt. substd.), a non-aromatic 4-8 membered ring (contg. in addition to the ring C atoms, 1 or 2 further ring heteroatoms and opt. mono- or di-substd. on ring C atoms), aryl, heteroaryl (each opt. substd.), or W<1>W<2>C=N; R<2>, R<5> = H, 1-8C alkyl or 3-7C cycloalkyl (these last 2 gps. each opt. partially or completely halogenated); R<3>, R<4> = 1-8C alkyl (opt. substd.), or CR<3>R<4> = 4-8 membered ring (contg. in addition to the ring C atoms, further ring heteroatoms and opt. mono or di substd. on ring C atoms), R<6> = 1-8C alkyl, 2-8C alkenyl, 2-8C alkynyl (these 3 gps. each opt. partially or completely halogenated and opt. substd.), 3-7C cycloalkyl, 3-7C cycloalkenyl (these 2 gps. each opt. partially or completely halogenated and opt. substd.),  a non-aromatic 4-8 membered ring (contg. in addition to the ring C atoms, 1 or 2 further heteroatoms and opt. substd. on the ring C atoms), aryl or heteroaryl (these last 2 gps. opt. substd.), and R<6> can also be H if R<3> = i-Pr; R<7> = R<6>, excluding H; X<1>-X<3> = O or S; W<1> = 1-8C alkyl (opt. partially or completely halogenated and opt. substd.), 2-8C alkenyl, 2-8C alkynyl (these last 2 gps. each opt. partially or completely halogenated and opt. substd.),  3-7C cycloalkyl or 3-7C cycloalkenyl (these 2 gps. each opt. substd.), aryl or heteroaryl (these 2 gps. each opt. substd.), W<2> = H or W<1>. The following cpds. are excluded: (Ia)-(Id); R<1> = PhCH2; R<2> = H; R<3> = Me, n-Pr, i-Pr or Ph-CH2; R<4>=R<5>=H; R<6>=R<7>=CH2CH2Cl; (Ie)-(Ih); R<1> = t-Bu; R<2> = H; R<3> = Me; i-Pr, CHMeEt; CH2CHMe2 or PhCH2; R<4>=R<5>=H; R<6>=R<7>=CH2CH2Br; (Ii); R<1> = PhCH2; R<2> = H; R<3> = Me; R<4>=R<5>=H; R<6> = Me; R<7> = Ph; (Ij)-(Ik); R<1> = PhCH2; R<2>=H; R<3>=i-Pr or CH2CHMe2; R<4>=R<5>=H; R<6>=R<7>=Ph; (Il); R<1> = t-Bu; R<2> = H; R<3> = i-Pr; R<4>=R<5>=R<6>=H; R<7> = Ph; (Im); R<1> = PhCH2; R<2> = H; R<3> = PhCH2; R<4>=R<5>=H; R<6>=R<7>=Et; (In)-(Io); R<1> = PhCH2; R<2> = H; R<3> = CH2SMe or CH2CH2SMe; R<4>=R<5>=H; R<6>=R<7>=CH2CH2Cl.
Patent DE-19512323-A1 (DE)
Title: Operating element for welding unit, esp. electrode holder or nozzle
Inventor: SCHLATTL WERNER
IPC: B23K9/29
Filed: 1995-04-01
Abstract: An operating element (1) for a welding unit or a welding device, esp. electrode holder or spindle sleeve or spindle sleeve holder, comprises a metal body (2), with a ceramic protective coating (7) on at least one face according to patent disclosure P4429422.0. The ceramic material is a ceramic material with TiO2 additive.
Patent DE-19512995-A1 (DE)
Title: Heating installation for multiple rooms
Inventor: ADAM MARIO DR
IPC: F24D19/10
Filed: 1995-04-06
Abstract: The central heating system has a single control which operates the boiler only if at least one of the valves controlling each room is open. The heating system comprises a boiler (1), a circulation pump (3) and heat exchangers (8) in each room (22).  A distributor (5) feeds each room circuit through on/off valves (6). The central control unit (14) registers the boiler output temperature by means of a sensor (4), and the condition of the valves (6), and switches on the boiler and/or the pump accordingly.
Patent DE-19514636-A1 (DE)
Title: Manhole cover for inspection shafts, sewer manholes, access shafts for tank pits etc.
Inventor: GALVANETTO FRANCOIS
IPC: E02D29/14
Filed: 1995-04-20
Abstract: The manhole cover comprises a lifting device which has an elastically pretensioned compression spring (11). The spring is fastened to the shaft wall (2) or the frame (3), and applies a permanent lifting force to the cover (5).After release of the locking unit (5a), the cover rises above the level of the top edge of the frame (13), either automatically or due to a slight externally applied traction force. The cover is then moved sidewards while still mainly horizontal. The spring is located on the circumference of a movable shaft (9) and held with radial play, in a bearing (8) fastened to the shaft wall.