Patents by Inventor Christopher Pietrzak
Christopher Pietrzak 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: 11963570Abstract: A pad for mounting to a helmet, the pad comprising a support member, a first layer of material arranged to cover a first side of the support member and a second layer of material arranged to cover the first layer of material, wherein a low friction interface is arranged between the first layer of material and the second layer of material to enable sliding of the first layer of material relative to the second layer of material, wherein each layer of material is formed from at least one of a textile, a cloth, a fabric and a felt.Type: GrantFiled: October 14, 2019Date of Patent: April 23, 2024Assignee: MIPS ABInventors: Christopher Pietrzak, Marcus Thiel
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Patent number: 11957200Abstract: A cheek pad for a helmet, the cheek pad comprising: an outer layer; an inner layer; and a sliding interface between the outer layer and the inner layer; wherein the outer layer and the inner layer are configured to slide relative to each other at the sliding interface, in response to an impact to the helmet, and the inner layer is configured to contact a side of the wearer's face, when the cheek pads are arranged in the helmet and the helmet is worn.Type: GrantFiled: October 31, 2019Date of Patent: April 16, 2024Assignee: MIPS ABInventors: Christopher Pietrzak, Peter Halldin
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Patent number: 11944150Abstract: The present invention provides a helmet, comprising first and second components having a sliding interface between them, wherein the sliding interface is provided between respective sliding surfaces of the first and second components, and the first component comprises (a) a mixture of (i) an olefin polymer, (ii) a lubricant, and optionally one or more further agents; or (b) an ultra high molecular weight (UHMW) polymer having a density of ?960 kg/m3, which UHMW polymer is preferably an olefin polymer.Type: GrantFiled: December 3, 2019Date of Patent: April 2, 2024Assignee: MIPS ABInventors: Christopher Pietrzak, Saman Xie
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Patent number: 11771167Abstract: A connector for connecting first and second parts of an apparatus, comprising: an inner region comprising a first anchor point on a first side thereof, the first anchor point being configured to connect the connector to the first part of the apparatus; two, or more, arms extending outward from an edge of the inner region, the arms being formed from a deformable material and configured to connect the connector to the second part of the apparatus; and the inner region further comprising a sliding surface on a second side thereof, opposite the first side, the sliding surface being configured to provide a low friction interface between the inner region and an opposing surface of the second part of the apparatus.Type: GrantFiled: February 19, 2019Date of Patent: October 3, 2023Inventor: Christopher Pietrzak
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Publication number: 20230109117Abstract: A helmet comprising first and second parts and a connector connecting the first and second parts of the helmet, the connector comprising: a first plate; a first anchor point on one side of the first plate, configured to be connected to the first part; a second plate located on an opposite side of the first plate from the first anchor point; a second anchor point on an opposite side of the second plate from the first plate, configured to be connected to the second part; a low friction interface provided between opposing surfaces of the first and second plates; and a cuff of deformable material provided around the first and second plates, and configured to at least partially cover the side of the first plate on which the first anchor point is located and to at least partially cover the side of the second plate on which the second anchor point is located.Type: ApplicationFiled: December 12, 2022Publication date: April 6, 2023Inventors: Christopher Pietrzak, Jack Liu, Steven Wang, Saman Xie
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Publication number: 20220031005Abstract: The present invention provides a helmet, comprising first and second components having a sliding interface between them, wherein the sliding interface is provided between respective sliding surfaces of the first and second components, and the first component comprises (a) a mixture of (i) an olefin polymer, (ii) a lubricant, and optionally one or more further agents; or (b) an ultra high molecular weight (UHMW) polymer having a density of ?960 kg/m3, which UHMW polymer is preferably an olefin polymer.Type: ApplicationFiled: December 3, 2019Publication date: February 3, 2022Inventors: Christopher PIETRZAK, Saman XIE
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Publication number: 20210401104Abstract: There is disclosed a connector for connecting first and second parts of an apparatus, the connector comprising: a deformable retainer having first and second sides around an inner space; and a first plate positioned within the inner space to provide a low friction interface between the first and second sides of the retainer; wherein the first side of the retainer has a first anchor point that is configured to connect the connector to the first part of the apparatus; and the second side of the retainer has a second anchor point that is configured to connect the connector to the second part of the apparatus.Type: ApplicationFiled: November 8, 2019Publication date: December 30, 2021Inventors: Amy Louise Pomering, Christopher Pietrzak, Saman Xie
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Publication number: 20210392985Abstract: A cheek pad for a helmet, the cheek pad comprising: an outer layer; an inner layer; and a sliding interface between the outer layer and the inner layer; wherein the outer layer and the inner layer are configured to slide relative to each other at the sliding interface, in response to an impact to the helmet, and the inner layer is configured to contact a side of the wearer's face, when the cheek pads are arranged in the helmet and the helmet is worn.Type: ApplicationFiled: October 31, 2019Publication date: December 23, 2021Inventors: Christopher Pietrzak, Peter Halldin
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Publication number: 20210378345Abstract: A pad for mounting to a helmet, the pad comprising a support member, a first layer of material arranged to cover a first side of the support member and a second layer of material arranged to cover the first layer of material, wherein a low friction interface is arranged between the first layer of material and the second layer of material to enable sliding of the first layer of material relative to the second layer of material, wherein each layer of material is formed from at least one of a textile, a cloth, a fabric and a felt.Type: ApplicationFiled: October 14, 2019Publication date: December 9, 2021Inventors: Christopher Pietrzak, Marcus Thiel
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Publication number: 20210169166Abstract: A connector for connecting first and second parts of an apparatus, comprising a first plate; a first anchor point on one side of the first plate, configured to be connected to the first part; a second plate located on an opposite side of the first plate from the first anchor point; a second anchor point on an opposite side of the second plate from the first plate, configured to be connected to the second part; a low friction interface provided between opposing surfaces of the first and second plates; and a cuff of deformable material provided around the first and second plates, and configured to at least partially cover the side of the first plate on which the first anchor point is located and to at least partially cover the side of the second plate on which the second anchor point is located.Type: ApplicationFiled: November 21, 2018Publication date: June 10, 2021Inventors: Christopher Pietrzak, Jack Liu, Steven Wang, Saman Xie
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Publication number: 20210007435Abstract: A connector for connecting first and second parts of an apparatus, comprising: an inner region comprising a first anchor point on a first side thereof, the first anchor point being configured to connect the connector to the first part of the apparatus; two, or more, arms extending outward from an edge of the inner region, the arms being formed from a deformable material and configured to connect the connector to the second part of the apparatus; and the inner region further comprising a sliding surface on a second side thereof, opposite the first side, the sliding surface being configured to provide a low friction interface between the inner region and an opposing surface of the second part of the apparatus.Type: ApplicationFiled: February 19, 2019Publication date: January 14, 2021Inventor: Christopher Pietrzak
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Publication number: 20050241050Abstract: A pair of strap adjustment assemblies for a bicycle helmet is provided. A first pair of straps is connected to one side of the helmet and a second pair of straps is connected to the other side of the helmet. A first strap adjustment assembly includes a release lever and a base for engaging the first pair of straps. The lever can be moved from a closed position to an open position. When the lever is in the open position, the user can move the strap adjustment assembly along the first pair of straps to adjust the location of the strap adjustment assembly. When the lever is in the closed position, the first strap adjustment assembly draws together the first pair of straps at a desired location. A second strap adjustment assembly is similar the first strap adjustment assembly and engages the second pair of straps, which are connected to the other side of the helmet.Type: ApplicationFiled: December 22, 2004Publication date: November 3, 2005Inventors: Christopher Pietrzak, Christopher Bullock