Positive air pressure isolation system
First Claim
1. An air-pressure control system, the system comprising:
- a system inlet;
a system outlet;
a first filter located within an airflow path between the system inlet and system outlet,a variable-speed fan configured to operate at a speed;
a motor controller in communication with the fan and configured to control the speed of the fan;
a differential-air-pressure transducer configured to monitor an air pressure differential between the system inlet and the system outlet; and
a closed-loop controller in communication with the motor controller and the differential-pressure transducer, wherein the pressure controller is configured to vary the speed of the fan based on the pressure differential between the inlet and outlet of the system, thereby controlling a pressure within a space.
1 Assignment
0 Petitions
Accused Products
Abstract
An air-pressure-control system, the system comprising a system inlet, a system outlet, and a variable-speed fan configured to operate at a speed. A motor controller in communication with the fan is configured to control the speed of the fan. A differential-pressure transducer configured to monitor an air pressure at the system inlet and an air pressure at the system outlet. A closed-loop pressure controller in communication with the motor controller and differential-pressure transducer, wherein the pressure controller is configured to vary the speed of the fan based on the pressure differential between the inlet and outlet of the system, thereby controlling a pressure within a space. An ultraviolet kill chamber may be disposed between the inlet and outlet to expose airborne particulate to UV radiation. The system may also have a filter located within an air-flow path between the system inlet and system outlet.
61 Citations
86 Claims
-
1. An air-pressure control system, the system comprising:
-
a system inlet; a system outlet; a first filter located within an airflow path between the system inlet and system outlet, a variable-speed fan configured to operate at a speed; a motor controller in communication with the fan and configured to control the speed of the fan; a differential-air-pressure transducer configured to monitor an air pressure differential between the system inlet and the system outlet; and a closed-loop controller in communication with the motor controller and the differential-pressure transducer, wherein the pressure controller is configured to vary the speed of the fan based on the pressure differential between the inlet and outlet of the system, thereby controlling a pressure within a space. - View Dependent Claims (3, 5, 6, 7, 17, 22, 27, 28, 30, 31, 33)
-
-
2. (canceled)
-
4. (canceled)
-
8. (canceled)
-
9. (canceled)
-
10. (canceled)
-
11. (canceled)
-
12. (canceled)
-
13. (canceled)
-
14. (canceled)
-
15. (canceled)
-
16. (canceled)
-
18. (canceled)
-
19. (canceled)
-
20. (canceled)
-
21. (canceled)
-
23. (canceled)
-
24. (canceled)
-
25. (canceled)
-
26. (canceled)
-
29. (canceled)
-
32. (canceled)
-
34. (canceled)
-
35. An air-pressure-control system, the system comprising:
-
a system inlet; a system outlet; a variable-speed fan configured to operate at a speed; a motor controller in communication with the fan and configured to control the speed of the fan; a differential-air-pressure transducer configured to monitor an air pressure differential between the system inlet and the system outlet; and a closed-loop controller in communication with the motor controller and the differential-pressure transducer, wherein the pressure controller is configured to vary the speed of the fan based on the pressure differential between the inlet and outlet of the system, thereby controlling a pressure within a space. - View Dependent Claims (37, 39, 40, 41, 44)
-
-
36. (canceled)
-
38. (canceled)
-
42. (canceled)
-
43. (canceled)
-
45. (canceled)
-
46. (canceled)
-
47. (canceled)
-
48. An air-pressure-control system, the system comprising:
-
a system inlet; a system outlet; a variable-speed fan configured to operate at a speed; a motor controller in communication with the fan and configured to control the speed of the fan; and a germicidal radiation chamber located within an airflow path in the air-pressure-control system, wherein the germicidal radiation chamber includes at least one UV light source, wherein the germicidal radiation chamber includes a reflective interior surface configured to reflect UV light produced by the UV light source such that UV light passes entirely across a portion of the airflow path lacking a filter. - View Dependent Claims (50, 51, 53, 54)
-
-
49. (canceled)
-
52. (canceled)
-
55. (canceled)
-
56. (canceled)
-
57. (canceled)
-
58. (canceled)
-
59. (canceled)
-
60. An air-pressure-control system, the system comprising:
-
a system inlet; a system outlet; a means for moving air between an exterior and a closed space; a differential-air-pressure transducer configured to monitor an air pressure differential between the system inlet and the system outlet; and a closed-loop controller in communication with the means for moving air and differential-air-pressure transducer, wherein the closed-loop controller is configured to vary a rate at which the air is moved based on the pressure differential between the inlet and outlet of the system, thereby controlling a pressure within the closed space. - View Dependent Claims (62, 64, 66)
-
-
61. (canceled)
-
63. (canceled)
-
65. (canceled)
-
67. (canceled)
-
68. (canceled)
-
69. (canceled)
-
70. (canceled)
-
71. (canceled)
-
72. (canceled)
-
73. An air pressure control system, the system comprising:
-
a first unidirectional air path including a first air path inlet and first air path outlet; a second unidirectional air path including a second air path inlet and second air path outlet; a variable-speed fan located within the first unidirectional air path and configured to operate at a speed; a motor controller in communication with the variable-speed fan and configured to control the speed of the variable-speed fan; a differential-air-pressure transducer located within the second unidirectional air path and configured to monitor an air pressure differential between the second air path inlet and the second air path outlet; and a closed-loop controller in communication with the motor controller and differential-air-pressure transducer, wherein the closed-loop controller is configured to maintain a pressure in a space by varying the speed of the fan based on the pressure differential between the air pressure at the second air path inlet and the air pressure at the second air path outlet. - View Dependent Claims (75, 77, 79, 86)
-
-
74. (canceled)
-
76. (canceled)
-
78. (canceled)
-
80. (canceled)
-
81. (canceled)
-
82. (canceled)
-
83. (canceled)
-
84. (canceled)
-
85. (canceled)
Specification