Margin air flow door for preventing pressure build up

• US 10,156,091 B1
• Filed: 11/09/2016
• Issued: 12/18/2018
• Est. Priority Date: 11/23/2010
• Status: Active Grant

• Current Assignee: Jerry G. Crittenden
• Original Assignee: Jerry G. Crittenden
• Inventors: Crittenden, Jerry G.
• Primary Examiner(s): Huson, Gregory
• Assistant Examiner(s): Hamilton, Frances F
• Application Number:
  US15/330,870
• Time in Patent Office: 769 Days
• Field of Search: 454195, 454237, 454238, 454906, 52455
• CPC Class Codes: B01D 2253/102 Carbon
• CPC Class Codes: B01D 2255/20707 Titanium
• CPC Class Codes: B01D 2255/802 Photocatalytic
• CPC Class Codes: B01D 2257/708 Volatile organic compounds V.O.C.'s
• CPC Class Codes: B01D 2257/80 Water
• CPC Class Codes: B01D 2257/90 Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
• CPC Class Codes: B01D 2258/06 Polluted air
• CPC Class Codes: B01D 2259/4508 for cleaning air in buildings
• CPC Class Codes: B01D 2259/802 Visible light
• CPC Class Codes: B01D 2259/804 UV light
• CPC Class Codes: B01D 53/0407 Constructional details of adsorbing systems
• CPC Class Codes: B01D 53/14 by absorption
• CPC Class Codes: B01D 53/8687 Organic components
• CPC Class Codes: E06B 2003/7051 of layered construction involving different materials
• CPC Class Codes: E06B 2003/7094 with ventilated innerspace
• CPC Class Codes: E06B 2007/026 with air flow between panes
• CPC Class Codes: E06B 3/7001 Coverings therefor; Door leaves imitating traditional raised panel doors, e.g. engraved or embossed surfaces, with trim strips applied to the surfaces
• CPC Class Codes: E06B 3/74 with wooden panels or frame E06B3/721, E06B3/725 and E06B3/76 take precedence
• CPC Class Codes: E06B 5/12 against air pressure, explosion, or gas
• CPC Class Codes: E06B 7/02 for providing ventilation, e.g. through double windows; Arrangement of ventilation roses airflow control members per se F24F13/08
• CPC Class Codes: E06B 7/10 : by special construction of the frame members
• CPC Class Codes: F24F 11/35 : by closing air passages
• CPC Class Codes: F24F 11/70 : Control systems characterised by their outputs; Constructional details thereof
• CPC Class Codes: F24F 11/72 : for controlling the supply of treated air, e.g. its pressure
• CPC Class Codes: F24F 13/12 : built up of sliding members
• CPC Class Codes: F24F 13/28 : Arrangement or mounting of filters

Abstract

A door has a stile and rail frame and a center element secured to the stile and rail frame. Openings extend through the margins of the center element, and inside and outside outer skins or elements are secured to the stile and rail frame. The inside and outside outer skins have openings adjacent to and laterally spaced apart from the openings through the margins of the center element, whereby air flows through the opening in the inside outer skin, through the openings in the margins of the center element, and through the opening in the outside outer skin in a non-linear manner to prevent pressure buildup in a room to comply with the government recommended pressure of three pascals or less.

Claims

1. A door having a stile and rail frame and a center element secured to the stile and rail frame for preventing the build up of pressure in a closed room comprising in combination:

a pair of stiles spaced apart;

a pair of rails spaced apart and secured to the pair of spaced apart stiles and defining a door frame;

the center element secured to the door frame;

a plurality of spaced apart openings extending through the center element;

an inside outer element spaced apart from the center element;

an outside outer element spaced apart from the center element;

a plurality of spaced apart openings in the inside outer element and in the outside outer element whereby air flows non-linearly through the plurality of openings in the inside outer element and through the plurality of openings in the center element and through the plurality of openings in the outside outer element.

2. The door of claim 1 in which the openings in the inside and outside outer elements are offset laterally from the plurality of openings in the center element to provide the non-linear air flow.

3. The door of claim 2 in which the center element includes an inside skin and an outside skin.

4. The door of claim 3 in which the inside and outside skins are molded.

5. The door of claim 4 in which the inside and outside skins include inwardly tapering portions, and the plurality of spaced apart openings extend through the inwardly tapering portions.

6. The door of claim 2 in which the plurality of openings in the inside and outside outer elements comprise a geometric design.

7. The door of claim 6 which includes a plurality of spacer elements for supporting the inside and outside outer elements.

8. The door of claim 1 in which the stiles and rails include

a sticking,

a groove in the sticking;

and

the center element includes an outer perimeter extending into the groove in the sticking.

9. The door of claim 8 in which the plurality of openings in the center element extend through the sticking and the outer perimeter of the center element in the sticking.

10. The door of claim 1 which includes an application of an absorbent material on the center element for removing noxious material from the flow of air through the door.