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Hafemeister

Gary H. Hafemeister, Plymouth, MI US

Patent application numberDescriptionPublished
20090114578Suction Filter for an Automatic Transmission - A filter assembly includes a filter housing including an inlet, through which hydraulic fluid enters the housing, and an outlet, through which hydraulic fluid exits the housing, valve housing containing a bypass valve located adjacent the inlet in a chamber, the valve including an orifice that opens and closes in response to differential pressure across the valve, and a screen secured to the valve housing and covering the orifice, the screen having a fine mess for removing contaminants from the fluid that flows through the valve.05-07-2009

Jens Hafemeister, Neustrelitz DE

Patent application numberDescriptionPublished
20090123792HIGH-TEMPERATURE FUEL CELL STACK - The invention relates to a high temperature fuel cell stack (05-14-2009
20090269652HOUSING FOR ACCOMMODATING AT LEAST A FUELL CELL STACK - The invention relates to an enclosure for accommodating at least one fuel cell stack (10-29-2009
20100062297INSULATING DEVICE AND TENSIONING DEVICE FOR A HIGH TEMPERATURE FUEL CELL SYSTEM COMPONENT - The invention relates to a device comprising a thermally insulating receptacle and, arranged in the receptacle, at least one high-temperature fuel cell system component enclosed by at least one insulating layer of a first material, a clamping means acting on the insulating layer. In accordance with the invention it is provided for that the clamping means comprises, supported by a receptacle housing and acting on the insulating layer, one or more plate-shaped elements made of a second material which is elastically deformable at a contact pressure, at which the first material is not deformable.03-11-2010
20100068597HOUSING FOR RECEIVING AND TENSIONING AT LEAST ONE FUEL CELL STACK - The invention relates to a housing for accommodating at least one fuel cell stack comprising a housing part formed so that it is capable of at least partly accommodating the fuel cell stack. According to the invention it is envisaged that clamping means are provided by which the fuel cell stack is restrainable via at least one orifice of the housing portion. The invention further relates to a system comprising such a housing and at least one fuel cell stack accommodated therein.03-18-2010
20100098978HOUSING FOR RECEIVING AT LEAST ONE FUEL CELL STACK - The invention relates to a housing for accommodating at least one fuel cell stack, an opening being provided in at least one housing wall in a position in which the stacking direction of the fuel cell stack intersects the housing wall, a clamping block being placable in the opening to which clamping block again a force in the stacking direction of the fuel cell stack can be applied by a clamping device to clamp the fuel cell stack.04-22-2010
20110039180FUEL CELL STACK, AND METHOD FOR THE PRODUCTION OF A FUEL CELL STACK - The invention relates to a fuel cell stack comprising a base plate supporting fuel cells and a cap of an electrically insulating material, particularly of ceramics, for electrically insulating the fuel cells stacked on top of each other partially enveloping the fuel cells stacked on top of each other. According to the invention it is contemplated that a metal cap provided for guiding cathode gas envelops the cap including the fuel cells together with the base plate and that the metal cap is attached to the base plate in a sealed manner. The invention further relates to a method for producing a fuel cell stack.02-17-2011

Patent applications by Jens Hafemeister, Neustrelitz DE

Thomas Hafemeister, Hamburg DE

Patent application numberDescriptionPublished
20100045874INTERMEDIATE FREQUENCY PROCESSING DEVICE FOR PROCESSING BOTH ANALOGUE AND DIGITAL TELEVISION INTERMEDIATE FREQUENCY SIGNALS - Disclosed is an intermediate frequency processing device for processing both analogue and digital television intermediate frequency signals including vision and sound intermediate frequency signal components, comprising an intermediate frequency signal input for receiving digital or analogue intermediate frequency signals, a processing section, coupled to said intermediate frequency signal input means, for processing intermediate frequency signals, and an output for outputting signals processed in said processing section. The processing section comprises a first band pass filter (02-25-2010