Abstract: A maximum air flow, minimum space requirement household room air purifier comprising an enclosure arranged to stand on a room floor in a room corner formed by room walls and having a face opening toward the room, an arcuate air purifying HEPA filter, a motorized fan passing room air through said enclosure and said filter in room air purifying relation, and a filter unit comprising a frame carrying the filter for snug interfittment with the enclosure face opening. The filter frame is provided with a reversible self-latch for removably securing the filter to the face opening and a seal against unpurified air by-passing the filter.
Abstract: A clean room filter support system has a filter unit comprising a perimetrical frame having four sides of a predetermined vertical extent with upper and lower edges and filtering material held within the frame for air flow between a first plane incorporating rear face of the filter material and a second plane incorporating a front face of the filter material, at least one side of the perimetrical frame defines an outwardly projecting bracket. There is a connector extending vertically between the support surface and the filter unit frame that has a rod supported from the support surface and an anchor structure supported by the rod. A spring-loaded pin engages with the bracket and is adjustable to selectively engage the anchor structure to couple the filter unit by its bracket to the anchor structure, the pin being adjustable for selectively engaging the anchor structure. A clip interposed between the pin head and the bracket blocks shifting of the filter unit against the resiliency of the spring.
Type:
Grant
Filed:
March 23, 2001
Date of Patent:
January 28, 2003
Assignee:
HEPA Corporation
Inventors:
Tony Gomez, Matthew Wharton, Richard Braman
Abstract: A clean room filter array including a plurality of individual filter units arranged for delivery of filtered air to a clean room is supported by an individual suspension assembly including a fastener pin at outturned flanges of each filter unit that is unshared with any other filter unit so that the filter unit of a frame and fixed filter media is shiftable to and from the array independently of shifting the position or orientation of the other filter units or altering their respective suspension assemblies.
Abstract: A fan filter unit for clean rooms has baffle structures sized and placed to limit the paths of entry of air flow from the unit motorized fan to the outlet ports, the baffle structures extending for a vertical height sufficient to avoid reversal of air flow within the enclosure for lower energy requirements in the unit while controlling noise levels and keeping BTU output low.
Abstract: A clean room filter unit mounting system including a bracket, a bracket and fastener assembly, and individually mounted filter units. The bracket and fastener assembly includes a bracket having a relatively fixed member and a relatively movable member to allow misaligned mounting of parts such as the filter units in a clean room ceiling to fixed suspension rods without perfect registration of the bracket fixed member with the suspension rods, and a fastener able to pass through both bracket members in a first arrangement and to block such passage in a second disposition.
Abstract: A clean room filter unit mounting system including a bracket, a bracket and fastener assembly, and individually mounted filter units. The bracket and fastener assembly includes a bracket having a relatively fixed member and a relatively movable member to allow misaligned mounting of parts such as the filter units in a clean room ceiling to fixed suspension rods without perfect registration of the bracket fixed member with the suspension rods, and a fastener able to pass through both bracket members in a first arrangement and to block such passage in a second disposition.
Abstract: Clean room ceiling in which the individual filter units are suspended solely by unshared suspension assemblies so as to be self-supporting and readily installable and removable individually and free of grids and other multiple unit supporting expedients.