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Ota Akiho: Container having collapse panels with longitudinally extending ribs. Yoshino Kogyosho, Parkhurst Oliff & Berridge, February 21, 1989: US04805788 (155 worldwide citation)

A hollow blow-molded container of a biaxially oriented thermoplastic material in which the container walls contain collapse panels with ribs to accommodate evacuation of the container without deleterious changes in the appearance of the container. The ribs within the collapse panels provide for incr ...


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Kikuzo Takamiya, Sadao Mabuchi, Kazuhiro Inoue: Speed change device for bicycle. Bridgestone Cycle, Parkhurst Oliff & Berridge, June 13, 1989: US04838122 (115 worldwide citation)

A speed change device for a bicycle comprises a carrier jointed to a crank arm and a plurality of planet gears rotatably supported on a plurality of shafts arranged in a circle on said carrier. Each of the planet gears includes a plurality of planet gear elements different in number of teeth. The de ...


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Tomoshige Dehari, Kouichi Miyamoto: Blade guard arrangement in motor-driven chop saw. Ryobi, Parkhurst Oliff & Berridge, October 4, 1988: US04774866 (90 worldwide citation)

A saw-blade guard arrangement in a motor driven chop saw which includes a new unit pivotally mounted for movement between an upper rest position and a lower operational position. The saw unit is pivotably connected to a hinging member through a pivot shaft, and the unit includes an upper safety guar ...


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Syunzo Mase, Shigeo Soejima: Method of manufacturing an electrochemical device. NGK Insulators, Parkhurst Oliff & Berridge, January 17, 1989: US04798693 (80 worldwide citation)

A method of manufacturing an electrochemical device having an electrochemical cell including a planar solid electrolyte body and at least two electrodes disposed in contact with the solid electrolyte body. The method comprising: forming a first unfired ceramic layer on one side of an unfired structu ...


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Kenji Shirai: Manually/electrically operated brake system. Toyota Jidosha Kabushiki Kaisha, Parkhurst Oliff & Berridge, March 14, 1989: US04812777 (72 worldwide citation)

A manually/electrically operated brake system for applying a brake to a wheel of a vehicle, including a master cylinder operated by a brake operating member, to generate a manually controlled braking pressure according to an operation of the brake operating member, a wheel brake cylinder for applyin ...


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Yoshikazu Ito, Masanori Akada, Hitoshi Arita: Heat transferable sheet. Dai Nippon Insatsu Kabushiki Kaisha, Parkhurst Oliff & Berridge, October 18, 1988: US04778782 (71 worldwide citation)

A heat transferable sheet which is to be used in combination with a heat transfer sheet, comprising (a) a substrate sheet and (b) a receptive layer formed on at least one surface of the substrate sheet for receiving dye which has migrated from said heat transfer sheet during heating printing, charac ...


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Takeaki Baba, Keizo Nanba, Yoshio Takeshima, Hiromichi Sano, Koji Tobita, Atsuo Muneto, Toshihiro Hara, Kazuki Fujise: Honeycomb panel structure. Sumitomo Light Metal, Parkhurst Oliff & Berridge, June 5, 1990: US04931340 (67 worldwide citation)

A honeycomb panel structure for thermal and acoustic insulation and for load bearing capability has a honeycomb panel which comprises a honeycomb core laminated with two facing plates, and a pair of housings. Each housing has a channel to engage and support a edge of the honeycomb panel. A first neu ...


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Takaharu Tasaki: Trigger type liquid dispenser. Yoshino Kogyosho, Parkhurst Oliff & Berridge, April 11, 1989: US04819835 (63 worldwide citation)

A trigger type liquid dispenser having a nozzle unit including a nozzle at its front end, a pump operated by a trigger and a container mount, in which the pump is operated by the trigger and has an annular cylinder including concentric outer and inner cylindrical members of double wall shape project ...


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Luc Weynachter, Vincent Corcoles: Solid-state trip unit of an electrical circuit breaker with contact wear indicator. Merlin Gerin, Parkhurst Oliff & Berridge, October 25, 1988: US04780786 (60 worldwide citation)

A digital solid-state trip unit of an electrical circuit breaker is equipped with an electrical contact wear indicator enabling the degree of wear of these contacts to be known. Each time the circuit breaker performs a break, the microprocessor determines a contact wear value, in terms of the maximu ...