Modular filter fan unit
First Claim
Patent Images
1. A fan filter unit, comprising:
- a housing having a bottom opening;
a removable filter closing the opening;
a fan received in the housing;
a fan support received in the housing, the fan support having a horizontal section that is centrally located over the approximate midspan of the filter, and side supports sloping downwardly from opposite sides of the horizontal section, the sides cooperating to define a divergent chamber downwardly from the horizontal section toward the filter, and further, the fan is mounted to the support for drawing air into the chamber and forcing the air out through the filter, and wherein the fan filter unit is modular to allow the entire fan filter unit to be removed as a unit.
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Accused Products
Abstract
A modular fan filter unit designed to supply process control air to mini-enclosure clean rooms. The modular fan filter unit is easy to remove, repair, and replace in the clean room environment. It has a readily accessible filter mounted across its bottom surface and an internal variable frequency drive fan. The fan pushes air through the filter into a clean room. Multiple numbers of modular fan filter units may be connected together as an array.
46 Citations
14 Claims
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1. A fan filter unit, comprising:
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a housing having a bottom opening; a removable filter closing the opening; a fan received in the housing; a fan support received in the housing, the fan support having a horizontal section that is centrally located over the approximate midspan of the filter, and side supports sloping downwardly from opposite sides of the horizontal section, the sides cooperating to define a divergent chamber downwardly from the horizontal section toward the filter, and further, the fan is mounted to the support for drawing air into the chamber and forcing the air out through the filter, and wherein the fan filter unit is modular to allow the entire fan filter unit to be removed as a unit. - View Dependent Claims (2, 3, 4, 8, 9, 10, 11, 12, 13, 14)
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5. A fan filter unit, comprising:
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a housing having a bottom opening; a removable filter closing the opening; a fan received in the housing; a fan support received in the housing, the fan support having a horizontal section that is centrally located over the approximate midspan of the filter, and side supports sloping downwardly from opposite sides of the horizontal section, the sides cooperating to define a divergent chamber downwardly from the horizontal section toward the filter, and further, the fan is mounted to a lower surface of the horizontal section of the fan support for drawing air into the chamber and forcing the air out through the filter, the horizontal section having an inlet opening for enabling the fan to draw air through the horizontal section, and further, the fan filter unit having an air cone received in the housing, the air cone being mounted to an upper surface of the horizontal section for delivering air into the inlet opening. - View Dependent Claims (6, 7)
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Specification