Patents by Inventor Kurt Hess
Kurt Hess has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7463159Abstract: The fire detector comprises an insertable detector assembly which includes a sensor arrangement, an electronic evaluation system and a housing which surrounds the sensor arrangement and has openings to provide access by air and, when applicable, smoke to the sensor arrangement. The detector is of modular construction and is configured to accommodate detection modules having sensors for different fire parameters, all detection modules being compatible with a single housing. The detection module may be configured for optical, thermal or optical-thermal fire detection and/or for detecting combustion gases. The sensor arrangement and the above-mentioned access openings are arranged substantially in one plane, whereby a shallow construction is achieved even in the case of a multi-criterion detector. The detection modules have a carrier plate which is identical for all detector types and is insertable in the detector, which carrier plate is configured to accommodate the sensors for the different fire parameters.Type: GrantFiled: June 13, 2003Date of Patent: December 9, 2008Assignee: Siemens Building Technologies AGInventors: Kurt Hess, Max Schlegel
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Publication number: 20080266558Abstract: The smoke detector contains an optical measuring chamber, having a sensor arrangement with at least one light source and one light receiver, and a labyrinth system with screens arranged on the periphery of the measuring chamber. The light source and the light receiver are each arranged in a housing. The housings have an elongated shape and a small window opening The at least one light source and light receiver are arranged in the rear part of their housings, so that between the window openings of the housings and the light-penetrated optical surfaces of the at least one light source and/or the lens of the light receiver a relatively large gap is formed. This gap is preferably greater than the diameter of the above-mentioned optical surfaces, or of the lens. In the measuring chamber between the light exit and entry side of the housings and the screens opposite them, a compact, open scattering space is formed.Type: ApplicationFiled: October 17, 2007Publication date: October 30, 2008Applicant: Siemens Building Technologies AGInventors: Kurt Hess, Urs Riedi
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Patent number: 7365846Abstract: The smoke detector contains an optical measuring chamber, having a sensor arrangement (2) with at least one light source (12, 12?) and one light receiver (11), and a labyrinth system (7) with screens (16) arranged on the periphery of the measuring chamber. The light source (12, 12?) and the light receiver (11) are each arranged in a housing (14, 15; 13). The above-mentioned housings (14, 15; 13) have an elongated shape and a small window opening The at least one light source (12, 12?) and light receiver (12, 12?) are arranged in the rear part of their housings (14, 15; 13), so that between the window openings of the housings (14, 15; 13) and the light-penetrated optical surfaces of the at least one light source (12, 12?) and/or the lens of the light receiver (11) a relatively large gap is formed. This gap is preferably greater than the diameter of the above-mentioned optical surfaces, or of the above-mentioned lens.Type: GrantFiled: June 13, 2003Date of Patent: April 29, 2008Assignee: Siemens AktiengesellschaftInventors: Kurt Hess, Urs Riedi
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Publication number: 20060017580Abstract: The smoke detector contains an optical measuring chamber, having a sensor arrangement (2) with at least one light source (12, 12?) and one light receiver (11), and a labyrinth system (7) with screens (16) arranged on the periphery of the measuring chamber. The light source (12, 12?) and the light receiver (11) are each arranged in a housing (14, 15: 13). The above-mentioned housings (14, 15; 13) have an elongated shape and a small window opening The at least one light source (12, 12?) and light receiver (12, 12?) are arranged in the rear part of their housings (14, 15; 13), so that between the window openings of the housings (14, 15; 13) and the light-penetrated optical surfaces of the at least one light source (12, 12?) and/or the lens of the light receiver (11) a relatively large gap is formed. This gap is preferably greater than the diameter of the above-mentioned optical surfaces, or of the above-mentioned lens.Type: ApplicationFiled: June 13, 2003Publication date: January 26, 2006Applicant: Siemens Building technologies AGInventors: Kurt Hess, Urs Riedi
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Publication number: 20060007009Abstract: The fire detector comprises an insertable detector assembly which includes a sensor arrangement (2), an electronic evaluation system and a housing (3) which surrounds the sensor arrangement (2) and has openings to provide access by air and, when applicable, smoke to the sensor arrangement (2). The detector is of modular construction and is configured to accommodate detection modules having sensors for different fire parameters, all detection modules being compatible with a single housing (3). The detection module may be configured for optical, thermal or optical-thermal fire detection and/or for detecting combustion gases. The sensor arrangement (2) and the above-mentioned access openings are arranged substantially in one plane, whereby a shallow construction is achieved even in the case of a multi-criterion detector.Type: ApplicationFiled: June 13, 2003Publication date: January 12, 2006Applicant: Siemens Building Technologies AGInventors: Kurt Hess, Max Schiegel
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Patent number: 5381130Abstract: In a scattered-light smoke detector, for preventing false alarms due to extraneous matter in a measurement chamber (1), a radiation source (2) and two radiation detectors (7, 8) are included. An evaluation circuit is provided for comparing the two detector signals, and an alarm signal is triggered if at least one of the detector signals exceeds a predetermined threshold, and if the two detector signals are at least approximately equal. In another embodiment, a scattered-light smoke detector includes two radiation sources (2, 22), a radiation detector (7), and circuitry for alternatively activating one (2) or the other (22) radiation source. For comparison, corresponding detector signals are stored in sample-and-hold circuits, and an alarm signal can be triggered depending on the same tests. Furthermore, in both cases, a trouble signal can be produced if the two signals are significantly different.Type: GrantFiled: September 8, 1992Date of Patent: January 10, 1995Assignee: Cerberus AGInventors: Marc Thuillard, Andreas Scheidweiler, Kurt Hess
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Patent number: 4626675Abstract: A light-sensitive device is disclosed for separately detecting light of two different wavelength bands. Such a device can be used in optical data communication. The separate detection is accomplished by two separate pn junctions which are disposed on two different sides of a substrate and are optically in series. The pn junction lying in front in the light path responds to light of, e.g., 850 nm, but not to light in the range from 950 nm to 1,650 nm. The substrate acts as a filter and passes the light of longer wavelength while blocking the 850-nm light, so that the second pn junction is only reached by light in the range from 950 nm to 1,650 nm.Type: GrantFiled: February 16, 1983Date of Patent: December 2, 1986Assignee: International Standard Electric CorporationInventors: Hans M. Gundner, Kurt Hess