51
Seishi Yasuhara: Engine lubricating oil replacement timing monitoring system and method for an automotive vehicle. Nissan Motor Company, Schwartz Jeffery Schwaab Mack Blumenthal & Koch, March 19, 1985: US04506337 (53 worldwide citation)

A microcomputer system for indicating that engine lubricating oil should be exchanged when the working life of the engine lubricating oil is over. The system comprises: (a) a first sensor which detects and signals the number of engine revolutions per time; (b) a second sensor which detects the load ...


52
Vladi Pusic, Benjamin T George, Monte E Smith, Craig B Johnson: Cache/disk file status indicator with data protection feature. Sperry Corporation, Griffin Branigan & Butler, March 19, 1985: US04506323 (52 worldwide citation)

A data processing system has a host processor, a RAM, a cache memory for storing segments of data, a plurality of disk drive devices and a storage control unit for controlling data transfers, data from the host processor being written to the cache memory and subsequently destaged to the disks. The s ...


53
Marshall W Marshall: Adjustably extensible roof drain receptacle. Tyler Pipe, Herbert E Haynes Jr, March 19, 1985: US04505814 (51 worldwide citation)

A roof drain receptacle for mounting on the roof deck of a roofing structure and including an upwardly opening drain body with an externally disposed apparatus for adjustably extending and supporting the drain body so that its open upper end is in the proper drain water receiving position relative t ...


54
Dennis R Kersch, Don E Mitchell: Copper body power hybrid package and method of manufacture. Sperry Corporation, Howard P Terry, March 19, 1985: US04506108 (51 worldwide citation)

A hybrid microcircuit package especially for high power microcircuits comprises a hard copper base with integral packaged sidewalls, a sealing frame of Kovar or stainless steel is electron beam welded or laser welded to the top surface of said sidewalls, whereby to highly localize the high temperatu ...


55
Henning F Harmuth: Frequency independent shielded loop antenna. Geophysical Survey Systems, Louis Orenbuch, March 19, 1985: US04506267 (51 worldwide citation)

An antenna is disclosed that is especially useful for radiating and receiving non-sinusoidal electromagnetic waves. The antenna is an efficient and distortion-free radiator of electromagnetic pulses that do not use a sinusoidal carrier. The antenna's size is independent of frequency and the antenna, ...


56
Shunzo Yamaguchi, Takeshi Fukazawa, Morihiro Atsumi: Exhaust gas cleaning apparatus. Nippondenso, Cushman Darby & Cushman, March 19, 1985: US04505107 (51 worldwide citation)

In an exhaust gas cleaning apparatus a ceramic heating resistor has a lattice-shaped exhaust gas passage and is formed by extrusion. The ceramic heating resistor is fixed closely to the upper stream side of a filter which catches particulates contained in exhaust gas. This heating resistor is divide ...


57
Koji Tamoto, Akira Umehara, Teruo Nagano, Masayuki Iwasaki, Yoshimasa Aotani: Photopolymerizable compositions. Fuji Photo Film, Sughrue Mion Zinn Macpeak and Seas, March 19, 1985: US04505793 (51 worldwide citation)

A photopolymerizable composition is described, which comprises a polymerizable compound containing at least one ethylenically unsaturated double bond and a photopolymerization initiator wherein the photopolymerization initiator is a combination of a 3-keto-substituted cumarin compound and an active ...


58
Leroy J Sullivan: Firearm trigger mechanism. Chartered Industries of Singapore Private, Ladas & Parry, March 19, 1985: US04505182 (50 worldwide citation)

A gun having a trigger mechanism comprising a pivotally mounted trigger (73) which is connected to rotate a pivotal sear and a reciprocal bolt carrier assembly having lugs (325) which are arranged to engage with the rear of the sear and a notch (717) in the top of the sear. Mounted on the pivotal ax ...


59
Robert C Weiner: Tamper-indicating device and method. Biebel French & Nauman, March 19, 1985: US04505399 (50 worldwide citation)

A tamper-indicating device which is attached by adhesives to a closure and which includes a sheet of material, sensitive to an ambient condition such as light or oxygen, that effects a time-delayed, irreversible change in appearance in response to exposure to the condition, which is automatically ex ...


60
Richard A Baglione: Super-heat monitoring and control device for air conditioning refrigeration systems. John J Leavitt, March 19, 1985: US04505125 (50 worldwide citation)

Presented is a control device which may be added to an already existing air conditioning refrigeration system, or which may be built into the air conditioning refrigeration system at the factory and which monitors the temperature and pressure of a refrigerant flowing in the refrigeration system to d ...



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