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公开(公告)号：US20140060330A1
公开(公告)日：2014-03-06
申请号：US13839283
申请日：2013-03-15
Applicant: DONALDSON COMPANY, INC.
Inventor： Alexandra MB Boyat , Michael J. Hebert , Thomas M. Weik , Robert O. Nelson , Lloyd G. Keleny , Jacob Sanders
IPC: H05K5/02
CPC classification number: H05K5/0213 , G06F1/1656 , H04M1/03 , H04M1/18 , H04R1/023 , H04R2499/11
Abstract: Taught herein is a venting media laminate having a microporous membrane layer, a fine fiber layer directly coupled to the microporous membrane layer, and a colorant disposed in the fine fiber layer. Also described is an acoustic venting assembly with a microporous membrane layer and a fine fiber layer having an average insertion loss no more than 100% more than the average insertion loss of the microporous membrane layer alone in the frequency range from 300 to 4000 Hz. Methods of manufacturing venting media is also described, where a colorant is added to the polymer solution which is spun to form a fine fiber layer. The fine fiber layer is laminated to an expanded PTFE membrane.
Abstract translation: 这里介绍的是具有微孔膜层，直接耦合到微孔膜层的细纤维层和布置在细纤维层中的着色剂的排气介质层压体。 还描述了一种具有微孔膜层和细纤维层的声音排气组件，其平均插入损耗不大于在300至4000Hz的频率范围内单独的微孔膜层的平均插入损耗的100％以上。 还描述了制造排气介质的方法，其中将着色剂加入到纺丝以形成细纤维层的聚合物溶液中。 将细纤维层层压到膨胀PTFE膜上。
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公开(公告)号：US11845248B2
公开(公告)日：2023-12-19
申请号：US17174661
申请日：2021-02-12
Applicant: Donaldson Company, Inc.
Inventor： Robert O. Nelson , Suresh B. Bommineni , Neil L. Taurinskas
CPC classification number: B32B27/322 , B32B5/022 , B32B27/08 , B32B27/365 , B32B37/06 , B32B37/18 , B32B2250/03 , B32B2250/04 , B32B2250/24 , B32B2305/026 , B32B2307/724 , B32B2307/732
Abstract: This disclosure describes an expanded polytetrafluoroethylene (ePTFE) composite, methods of making the composite, and methods of using the composite. In some aspects, the ePTFE composite includes a first layer of ePTFE, a nonwoven layer, and a second layer of ePTFE, wherein a major surface of the first layer of ePTFE is in contact with a first major surface of the nonwoven layer, and wherein a first major surface of the second layer of ePTFE is in contact with a second major surface of the nonwoven layer.
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Patent Agency Ranking
公开(公告)号：US11420816B2
公开(公告)日：2022-08-23
申请号：US16826639
申请日：2020-03-23
Applicant: Donaldson Company, Inc.
Inventor： Jacob L. Sanders , Robert O. Nelson , James P. Moorman , Daniel J. Dotzler
IPC: B65D90/32
Abstract: The present technology relates to an air reservoir for an enclosure where, upon submersion in water, the pressure differential between the water and the enclosure displaces air from the air reservoir into the enclosure to reduce the pressure differential.
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公开(公告)号：US20250084927A1
公开(公告)日：2025-03-13
申请号：US18827416
申请日：2024-09-06
Applicant: Donaldson Company, Inc.
Inventor： Matthew P. Brownson , Isaac J. Laffey , Matthew J. Goode , Aflal Rahmathullah , Suresh B. Bommineni , Daniel P. Little , Marc J. Andvik , Robert O. Nelson , Michael S. Libbey , Dustin M. Meier
Abstract: The pressure relief assembly has a valve body constructed of breathable porous plastic. The valve body has an outer perimetric surface defining a detent mating surface and a sealing surface configured to form a seal around a valve opening. A first detent has a detent engagement surface configured to releasably engage the detent mating surface. The first detent is configured to release the valve body upon a minimum pressure differential across the valve body. The first detent is configured to extent laterally outward from the detent mating surface. The pressure relief assembly has a frame having a coupling structure configured to couple to an enclosure. The pressure relief assembly has a valve mounting surface and a valve opening within the valve mounting surface, where the valve body is sealably disposed on the valve mounting surface across the valve opening.
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公开(公告)号：US20200307906A1
公开(公告)日：2020-10-01
申请号：US16826639
申请日：2020-03-23
Applicant: Donaldson Company, Inc.
Inventor： Jacob L. Sanders , Robert O. Nelson , James P. Moorman , Daniel J. Dotzler
IPC: B65D90/32
Abstract: The present technology relates to an air reservoir for an enclosure where, upon submersion in water, the pressure differential between the water and the enclosure displaces air from the air reservoir into the enclosure to reduce the pressure differential.
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公开(公告)号：US20240077143A1
公开(公告)日：2024-03-07
申请号：US18243007
申请日：2023-09-06
Applicant: Donaldson Company, Inc.
Inventor： Matthew J. Goode , Daniel J. Dotzler , Robert O. Nelson
IPC: F16K17/40
CPC classification number: F16K17/403 , F16K2200/50
Abstract: A valve assembly is disclosed that has a valve housing including a first axial end, a cap, a second axial end, and an airflow pathway extending from the first axial end towards the second axial end. The cap is positioned towards the second axial end. The valve housing includes an environmental opening configured for fluid communication with an outside environment, an enclosure opening towards the first axial end configured for fluid communication with an interior of an enclosure, and a film having an expansion diameter disposed in the valve housing laterally across the airflow pathway. The cap has an inner lateral surface and a piercing protrusion (having a piercing tip) extending from the inner lateral surface towards the first axial end. An axial distance is defined between the film and the inner lateral surface. A ratio of the axial distance to the film expansion diameter is at least 0.14.
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公开(公告)号：US20210252843A1
公开(公告)日：2021-08-19
申请号：US17174661
申请日：2021-02-12
Applicant: Donaldson Company, Inc.
Inventor： Robert O. Nelson , Suresh B. Bommineni , Neil L. Taurinskas
Abstract: This disclosure describes an expanded polytetrafluoroethylene (ePTFE) composite, methods of making the composite, and methods of using the composite. In some aspects, the ePTFE composite includes a first layer of ePTFE, a nonwoven layer, and a second layer of ePTFE, wherein a major surface of the first layer of ePTFE is in contact with a first major surface of the nonwoven layer, and wherein a first major surface of the second layer of ePTFE is in contact with a second major surface of the nonwoven layer.
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