Patents by Inventor Andrew Tischendorf
Andrew Tischendorf 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: 9181115Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: GrantFiled: January 6, 2014Date of Patent: November 10, 2015Assignee: PENTAIR RESIDENTIAL FILTRATION, LLCInventors: Andrew Tischendorf, Michael P. Lindfors, Kyle Paull
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Publication number: 20140144845Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: ApplicationFiled: January 6, 2014Publication date: May 29, 2014Applicant: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Patent number: 8623217Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: GrantFiled: July 26, 2013Date of Patent: January 7, 2014Assignee: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Publication number: 20130306578Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: ApplicationFiled: July 26, 2013Publication date: November 21, 2013Applicant: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Patent number: 8500999Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: GrantFiled: February 1, 2010Date of Patent: August 6, 2013Assignee: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Publication number: 20100200522Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: ApplicationFiled: February 1, 2010Publication date: August 12, 2010Inventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Patent number: 6401501Abstract: The lock construction of the present invention has a lock body defining an interior cavity and a shackle that is releasably received in the interior cavity. The shackle is movable to a locked position for securing to an object and an unlocked position for releasing the object between the shackle and the lock body. A locking mechanism is disposed within the interior cavity of the lock and comprises rotatable first and second members. A motor is included to rotate said second member and thereby rotate the first member to secure and release the shackle between the locked and unlocked positions.Type: GrantFiled: May 1, 2000Date of Patent: June 11, 2002Assignee: Master Lock CompanyInventors: Peter Kajuch, Andrew Tischendorf
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Patent number: 6297725Abstract: A keyless locking mechanism is activated by a remote unit which transmits coded signals to an electromechanical door lock device. The electromechanical device components are configured for secure mounting within the void or hollow portions of existing door locking apparatus. A sensor in the outer doorknob receives and forwards the coded signals to a processor which compares them with a predetermined stored signal. If an acceptable comparison is made, the processor generates control signals for the device, which acts solely along the locking axis to enable or disable the door locking assembly. The coded signals include two separate signals which are transmitted in segments interleaved with one another. The first signal includes an entrance code, while the second signal provides information concerning the frequency over which the next segments will be transmitted. The processor uses the second signal information to tune the receiver.Type: GrantFiled: June 21, 1999Date of Patent: October 2, 2001Assignee: Schlage Lock CompanyInventors: Andrew Tischendorf, Kenneth Schultz, Gary Lehman, Demos Andreou, Ari Glezer
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Patent number: 5933086Abstract: A keyless locking mechanism for use in a door or the like. An operator activates the system by means of a portable remote handheld controller or a remote keypad unit, which transmit coded signals to an electronically controlled, electromechanical door lock device. The electronic and electromechanical device components are configured for secure mounting within the void or hollow portions of existing door locking apparatus, such as within the hollow interior doorknob, or hollow cylindrical sleeve latch actuators, or beneath the interior rose or escutcheon plates. A sensor or receiver/antenna mounted within the outer doorknob receives and forwards the coded signals to a processor which compares them with a predetermined stored signal. If an acceptable comparison is made, the processor generates control signals for the electromechanical device, which acts solely along or about the locking axis to enable or disable the door locking assembly, according to the command initiated by the operator.Type: GrantFiled: December 1, 1997Date of Patent: August 3, 1999Assignee: Schlage Lock CompanyInventors: Andrew Tischendorf, Kenneth Schultz, Gary Lehman, Demos Andreou, Ari Glezer
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Patent number: D437204Type: GrantFiled: May 1, 2000Date of Patent: February 6, 2001Assignee: Master Lock CompanyInventors: Peter Kajuch, Andrew Tischendorf