Cleansing system using treated recirculating air

• US 4,244,712 A
• Filed: 03/05/1979
• Issued: 01/13/1981
• Est. Priority Date: 03/05/1979
• Status: Expired due to Term

• Current Assignee: Stewart R. Tongret
• Original Assignee: Stewart R. Tongret
• Inventors: Tongret, Stewart R.
• Primary Examiner(s): Lutter, Frank W.
• Assistant Examiner(s): Clements, Gregory N.
• Application Number:
  US06/017,451
• Time in Patent Office: 680 Days
• Field of Search: 55/139, 55/279, 55/124, 55/138, 55/470, 55/136, 55/271, 55/316, 55/387, 422/121
• US Class Current: 96/25
• CPC Class Codes: B03C 3/155 Filtration
• CPC Class Codes: B03C 3/32 Transportable units, e.g. for cleaning room air
• CPC Class Codes: B60H 3/0078 comprising electric purifying means
• CPC Class Codes: F24F 8/26 using ozone
• CPC Class Codes: F24F 8/30 by ionisation
• CPC Class Codes: F24F 8/80 Self-contained air purifiers

Abstract

The system comprises a portable housing having air entrance and air exit openings. A motor connected to a timer operates blowers in the housing to draw air into the entrance openings and through the housing out the exit openings. The housing incorporates an electrostatic air cleaner, a charcoal filter, an ozone gas generator and a negative ion generator to provide treated air having ozone and negative ions and wherein the electrostatic cleaner and charcoal filter physically and chemically remove impurities. This air circulates about an area in which the housing is positioned, the air penetrating and permeating fabric, carpets, rugs and the like in the area to kill odor causing bacteria and essentially sanitize material with which the air comes into contact. A specific application is that of deodorizing and sanitizing the interior of rental automobiles.

Claims

1. A cleansing system using treated recirculating air including, in combination:

(a) a housing having an air entrance opening and first and second air exit openings on opposite sides of the housing respectively;

(b) blower means including a blower motor having a shaft with two centrifugal type blowers mounted on opposite sides of said shaft juxtaposed to said first and second exit openings, respectively, for drawing air into the entrance opening and through the housing out the exit openings;

(c) an electrostatic air cleaner supported in said housing through which incoming air passes for filtering out negatively charged impurities in the air;

(d) a charcoal filter in said housing following said electrostatic air cleaner for chemically absorbing other impurities in said air;

(e) an ozone gas generator following said charcoal filter for adding ozone to air flowing through said housing;

(f) first and second negative ion generators associated with said first and second exit openings respectively for charging air particles negatively, said blower means following said ozone gas generator and preceding said negative ion generators so that air flowing out said exit openings contains ozone and is treated with negative ions at the output of said blower means immediately prior to passing through said exit openings;

(g) a timer attached to said housing for supplying electrical energy during a set time period to said blower means, electrostatic air cleaner and negative ion generator;

(h) a high voltage transformer in said housing connected to said timer and including a grounded center tapped secondary coil providing high voltage A.C. on first and second output leads connected to said ozone generator; and

,

(i) first and second rectifiers connected respectively between said output leads and said center tapped ground for providing rectified positive and negative voltages, equal to one half the total output voltage of said high voltage transformer to said electrostatic air cleaner and said negative ion generators respectively, said air circulating around an area in which said housing is positioned and penetrating and permeating fabric, rugs, carpets and the like in said area to kill odor causing bacteria and essentially sanitize material with which the air comes into contact.