Patents by Inventor David R. Maas
David R. Maas 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: 7575064Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.Type: GrantFiled: September 26, 2007Date of Patent: August 18, 2009Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Publication number: 20090154401Abstract: A method is provided for allocating initial ranging opportunities in a series of frames. According to the method, a number of initial ranging opportunities are allocated in frame N that occurs after a triggering event, and k frames after frame N the number of initial ranging opportunities is selectively reduced. The triggering event is one of system startup and broadcast of an Uplink Channel Descriptor message. Also provided is a base station that includes a controller for allocating a number of initial ranging opportunities in frame N that occurs after a triggering event. The controller selectively reduces the number of initial ranging opportunities k frames after frame N. The triggering event is one of system startup, broadcast of an Uplink Channel Descriptor message, broadcast of a page message, or broadcast of a signature for an overhead configuration message.Type: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Applicant: MOTOROLA, INC.Inventors: Rishi R. Arora, David R. Maas, John M. Harris, Jun Wang, Robert V. Stephens, Samir S. Vaidya
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Publication number: 20090141677Abstract: A technique for handling service flows in a wireless communication system includes receiving a first packet over a first service flow. In this case, the first service flow has a first quality of service. Next, a packet classifier associated with the first packet is determined. A second service flow with a selected quality of service is then created when the packet classifier for the first packet corresponds to a selected classifier.Type: ApplicationFiled: December 3, 2007Publication date: June 4, 2009Applicant: Motorola, Inc.Inventor: David R. Maas
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Publication number: 20090038814Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.Type: ApplicationFiled: October 14, 2008Publication date: February 12, 2009Applicant: PLANETAIR TURF PRODUCTS, LLCInventors: Scott W. Bjorge, David R. Maas
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Publication number: 20090008108Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.Type: ApplicationFiled: September 11, 2008Publication date: January 8, 2009Applicant: PLANETAIR LLCInventors: Scott W. Bjorge, David R. Maas
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Patent number: 7451831Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.Type: GrantFiled: October 6, 2005Date of Patent: November 18, 2008Assignee: PlanetAir Turf Products, LLCInventors: Scott W. Bjorge, David R. Maas
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Patent number: 7438136Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.Type: GrantFiled: October 11, 2005Date of Patent: October 21, 2008Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Publication number: 20080109693Abstract: A method is described for providing Hybrid Automatic Repeat Request (HARQ) transmission feedback to a higher layer protocol in a communication system. The method includes a step of detecting HARQ retransmissions in a first layer protocol. This can be used to determine a HARQ failure or an HARQ ACK after a delay of some retransmissions. A next step includes providing feedback information about the detecting step from the first layer protocol to a higher layer protocol. A next step includes instituting corrections at the higher layer protocol, in response to the information transferred from the first layer protocol. These corrections can include immediate retransmission of those bursts of a HARQ failure, or correcting timers to match the delay of eventually ACK'ed data.Type: ApplicationFiled: October 23, 2007Publication date: May 8, 2008Applicant: MOTOROLA, INC.Inventors: David R. Maas, Ravi M. Adatrao, Pramod Karnam, Mark J. Marsan
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Patent number: 7341115Abstract: In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in the soil. The weight transferring systems may in the preferred embodiments be calibrated so that only minimal upward force, such as that caused by impact of an aeration tine with a rock, may cause the aeration subassembly to lift thereby significantly reducing or preventing damage to the aeration tines and drive assemblies and substantially prolonging the life of the aerator.Type: GrantFiled: May 2, 2006Date of Patent: March 11, 2008Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Patent number: 7290619Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.Type: GrantFiled: February 10, 2004Date of Patent: November 6, 2007Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Patent number: 7204317Abstract: Certain embodiments of the invention include an aerator that provides a shifting means adapted to alter the path of the aeration tines so that they do not impact the ground surface, the shifting being effected without lifting the entire aerator from the ground surface. Some embodiments of an aerator further include an energy modulation system that is capable of relieving a shock to the gear system caused by an aeration tine impacting debris, rocks or a hardened portion in the ground.Type: GrantFiled: June 14, 2004Date of Patent: April 17, 2007Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Patent number: 7152691Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.Type: GrantFiled: February 10, 2004Date of Patent: December 26, 2006Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Patent number: 7096968Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.Type: GrantFiled: March 12, 2003Date of Patent: August 29, 2006Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Patent number: 7070005Abstract: In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in the soil. The weight transferring systems may in the preferred embodiments be calibrated so that only minimal upward force, such as that caused by impact of an aeration tine with a rock, may cause the aeration subassembly to lift thereby significantly reducing or preventing damage to the aeration tines and drive assemblies and substantially prolonging the life of the aerator.Type: GrantFiled: February 10, 2004Date of Patent: July 4, 2006Assignee: PlanetAir Turf Products, LLCInventors: David R. Maas, Scott W. Bjorge
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Patent number: 7055617Abstract: A soil aeration apparatus may include aeration tines that are actuated by a relatively compact gear system that reduces the size and weight of the apparatus. In addition, a soil aeration apparatus may operate without a centrally disposed support shaft, thus enabling the tine-holder shafts to be positioned closer to one another and reducing the size of the apparatus.Type: GrantFiled: August 11, 2003Date of Patent: June 6, 2006Assignee: PlanetAir Turf Products, LLCInventors: Scott W. Bjorge, David R. Maas
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Publication number: 20030230417Abstract: A soil aeration device may include a plurality of arcuate blades mounted to an assembly adapted to rotate and translate the blades proximate a ground surface, thereby forming aeration pockets in the soil. In certain embodiments, the arcuate tines penetrate and fracture the soil while minimizing the amount of soil lifted from the pocket deposited on the top of the soil. In various embodiments, a planetary gear assembly imparts to the tine a translational and rotational movement which creates a fractured pocket in the soil while minimizing the amount of soil lifted from the pocket and deposited on the surface of the soil. In still other embodiments, the arcuate tine may have mounted thereon a coring tube that cuts and removes a plug from the pocket formed in the soil.Type: ApplicationFiled: March 12, 2003Publication date: December 18, 2003Inventor: David R. Maas