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公开(公告)号:GB190710353A
公开(公告)日:1907-09-12
申请号:GB190710353D
申请日:1907-05-03
Applicant: STEVENS ROBERT CLARK
Inventor: STEVENS ROBERT CLARK
Abstract: 10,353. Stevens, R. C. May 3. Cleaning pipes and tubes.-Soot &c. is removed from the outside of the dram B, which forms a feedwater-heater, by a steam jet or preferably by a scraper or scrapers 18 operated by a rod 19.
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公开(公告)号:CA107277A
公开(公告)日:1907-09-03
申请号:CA107277D
申请日:1907-04-22
Applicant: STEVENS ROBERT CLARK
Inventor: STEVENS ROBERT CLARK
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公开(公告)号:CA2564703A1
公开(公告)日:2005-10-13
申请号:CA2564703
申请日:2005-03-21
Applicant: WEGENER PAUL , BERG JOHN , STEVENS ROBERT
Inventor: WEGENER PAUL T , BERG JOHN
Abstract: A wave energy harvester (100A) includes an element (120A) that converts forward and/or backward of water in a wave (102A. B. C) passing the harveste r (100A) into upward and/or downward movement to thereby increase the vertical amplitude of the harvester (100A) relative to the sea floor (104A. B. C). In most preferred aspects, the element (120A) is a hydrofoil that is coupled to the harvester (100A). Further preferred aspects include those in which part of, or the entire harvester (100A) has a neutral buoyancy, and where energy is extracted from the downwards movement of the neutrally buoyant part (100A) after a wave has lifted that part (110A).
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公开(公告)号:DE3439911A1
公开(公告)日:1985-08-14
申请号:DE3439911
申请日:1984-10-29
Applicant: ERMAK BORIS , STEVENS ROBERT D
Inventor: ERMAK BORIS
Abstract: A novel azeotropic mixture of the refrigerants R12, R22 and R142b in which a higher operating temperature and a lower operating pressure are attained than are attainable by any of the refrigerants of the mixture.
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公开(公告)号:ES217578U
公开(公告)日:1976-10-16
申请号:ES217578
申请日:1973-05-10
Applicant: STEVENS ROBERT
IPC: A63B51/12
Abstract: Raqueta para el tenis, perfeccionado, que incluyen un bastidor anular compuesto por un material elástico y que tiene una porción de cabeza curvado, una porción de cuello y una extensión de mango; cuerdas para dicha raqueta aseguradas a través de agujeros en dicha porción de cabeza de dicho bastidor en una primera serie de pasadas que se extienden a través del área circunscrita por dicha porción de cabeza de dicho bastidor y en una segunda serie de pasadas que se extienden transversalmente con respecto a dicha primera serie a través del área circunscrita por dicha porción de cabeza de dicho bastidor; un mango alargado fijado con dicha extensión de mango de dicho bastidor; primeros y segundos brazos que se extienden alrededor de los lados opuestos de dicha porción de cabeza curvada adyacente a dicha porción de cabeza, estando acoplados dichos brazos con los extremos inferiores de dicha segunda serie de pasadas; y medios de regulación unidos con dichos brazos con los extremos inferiores de dicha segunda serie de pasadas; y medios de regulación unidos con dichos brazos para producir un movimiento deslizante de dichos brazos con relación a dicha porción de cabeza curvada a lo largo de su superficie periférica para disponer dicha segunda serie de pasadas en tensión por cantidades diferenciales proporcionales a las longitudes individuales de dicha segunda serie de pasadas en tensión por cantidades diferenciales proporcionales a las longitudes individuales de dicha segunda serie de pasadas, con el fin de comprimir de este modo dicha porción de cabeza curvada de dicho bastidor extienda su dimensión lateral, para disponer dicha primera serie de pasadas bajo tensión por cantidades diferenciales proporcionales a las longitudes individuales de dicha serie de pasadas, con el fin de distribuir la carga aplicada a las mismas y de este modo disponer dicha primera serie de pasadas de dichas cuerdas en tensión correspondiente a la tensión de dicha segunda serie de pasadas de las mismas.
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公开(公告)号:CA2564703C
公开(公告)日:2010-06-01
申请号:CA2564703
申请日:2005-03-21
Applicant: STEVENS ROBERT , WEGENER PAUL T , BERG JOHN
Inventor: WEGENER PAUL T , BERG JOHN
Abstract: A wave energy harvester (100A) includes an element (120A) that converts forward and/or backward of water in a wave (102A. B. C) passing the harvester (100A) into upward and/or downward movement to thereby increase the vertical amplitude of the harvester (100A) relative to the sea floor (104A. B. C). In most preferred aspects, the element (120A) is a hydrofoil that is coupled to the harvester (100A). Further preferred aspects include those in which part of, or the entire harvester (100A) has a neutral buoyancy, and where energy is extracted from the downwards movement of the neutrally buoyant part (100A) after a wave has lifted that part (110A).
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公开(公告)号:AU2003245362A1
公开(公告)日:2003-12-19
申请号:AU2003245362
申请日:2003-05-30
Applicant: STEVENS ROBERT W
Inventor: STEVENS ROBERT W
Abstract: A stand for a musical instrument is sturdy, durable, virtually unbreakable, lightweight, simple and inexpensive to construct, and supports an instrument (e.g. a string instrument) in an upright readily accessible manner; yet the stand is simple easy to disassemble for ready transport in a low volume configuration. The stand includes two substantially planar (e.g. molded of polycarbonate) support pieces, with a slide connection between them. An abutment piece preferably fits between the support pieces for ease of transport, and when the stand is assembled fits atop the support pieces. The neck of a guitar, violin, banjo, or like instrument, fits in a recess in the abutment piece, while the body of the instrument is supported by leg portions of the support pieces. A locking member, such as an elastic strap, can extend over the recess to prevent the instrument from detaching from the stand. The stand can be constructed to support multiple instruments.
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公开(公告)号:AT216323T
公开(公告)日:2002-05-15
申请号:AT99101235
申请日:1999-01-22
Applicant: STEVENS ROBERT
Inventor: STEVENS ROBERT
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公开(公告)号:AU6045696A
公开(公告)日:1996-12-30
申请号:AU6045696
申请日:1996-06-07
Applicant: MARTIN R MYERS , STEVENS ROBERT , JAMES W PATTEN , PAUL C BECKER , TERRY M MCINERNEY , DENNIS P POTTER , JAMES M SHORT , PAUL BIGGERSTAFF
Inventor: MYERS MARTIN R , PATTEN JAMES W , BECKER PAUL C , MCINERNEY TERRY M , POTTER DENNIS P , SHORT JAMES M , BIGGERSTAFF PAUL , STEVENS ROBERT
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