Patents Assigned to DRFF, LLC
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Publication number: 20250003173Abstract: A drainage and ventilation system includes a plurality of drainage cores. Each core includes a sheet having a first and a second end, a first and a second side, and a plurality of dimples disposed between the ends and the sides. The dimples extend outwardly from the sheet and define a plurality of passages. The passages include passages extending from end to end and passages extending from side to side. The system also includes a fabric attached to each core. The passages of the cores receive and convey a flow of at least one of liquid, air and gas through the drainage cores. In one embodiment, the cores are disposed in soil, and the dimples are filled with an adhesive to enhance the shock absorbing properties of the soil. In another embodiment, the dimples are filled a cement-based material for adhering a finish material to the cores.Type: ApplicationFiled: July 29, 2024Publication date: January 2, 2025Applicant: DRFF, LLCInventor: Charles Moyher
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Patent number: 11668066Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes an outwardly bounding reinforcement post for each of the side walls, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding posts. The barrier and the component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding posts.Type: GrantFiled: December 24, 2020Date of Patent: June 6, 2023Assignee: DRFF, LLCInventor: Charles Moyher
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Publication number: 20220275599Abstract: A drainage and ventilation system includes a plurality of drainage cores. Each core includes a sheet having a first and a second end, a first and a second side, and a plurality of dimples disposed between the ends and the sides. The dimples extend outwardly from the sheet and define a plurality of passages. The passages include passages extending from end to end and passages extending from side to side. The system also includes a fabric attached to each core. The passages of the cores receive and convey a flow of at least one of liquid, air and gas through the drainage cores. In one embodiment, the cores are disposed in soil, and the dimples are filled with an adhesive to enhance the shock absorbing properties of the soil. In another embodiment, the dimples are filled a cement-based material for adhering a finish material to the cores.Type: ApplicationFiled: March 17, 2022Publication date: September 1, 2022Applicant: DRFF, LLCInventor: Charles Moyher
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Publication number: 20210189683Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes an outwardly bounding reinforcement post for each of the side walls, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding posts. The barrier and the component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding posts.Type: ApplicationFiled: December 24, 2020Publication date: June 24, 2021Applicant: DRFF, LLCInventor: Charles Moyher
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Patent number: 11008750Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes an outwardly bounding reinforcement post for each of the side walls, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding posts. The barrier and the component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding posts.Type: GrantFiled: May 4, 2018Date of Patent: May 18, 2021Assignee: DRFF, LLCInventor: Charles S. Moyher
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Patent number: 10094107Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes at least one inwardly bounding reinforcement post and at least one outwardly bounding reinforcement post, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding and inwardly bounding posts. The component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding and inwardly bounding posts.Type: GrantFiled: April 5, 2017Date of Patent: October 9, 2018Assignee: DRFF, LLCInventor: Charles S. Moyher
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Publication number: 20170204583Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes at least one inwardly bounding reinforcement post and at least one outwardly bounding reinforcement post, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding and inwardly bounding posts. The component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding and inwardly bounding posts.Type: ApplicationFiled: April 5, 2017Publication date: July 20, 2017Applicant: DRFF, LLCInventor: Charles S. Moyher