Sanitary door handle having an upper housing and a spacer element

• US 4,710,634 A
• Filed: 04/14/1986
• Issued: 12/01/1987
• Est. Priority Date: 04/14/1986
• Status: Expired due to Fees

• Current Assignee: Richard L. Brookes
• Original Assignee: Richard L. Brookes
• Inventors: Brookes, Richard L.
• Primary Examiner(s): SILVERBERG, FRED A
• Application Number:
  US06/851,956
• Time in Patent Office: 596 Days
• Field of Search: 16/110 R, 179/184, 179/185, 422/24, 250/454.1, 250/492.1, 250/504 R, 250/504 H, 250/455.1, 379/433, 379/439, 379/447, 379/452
• US Class Current: 250/455.11
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: E05B 1/0069 Sanitary doorknobs or handles, e.g. comprising a disinfectant
• CPC Class Codes: Y10S 16/904 Handle means having sanitary characteristic, e.g. to prevent transmission of germs

Abstract

A self-sanitizing door handle for restrooms is disclosed. The door handle has a plate having a pushing surface facing away from the door and mounted upon a hollow spacer element upon the door. A peripheral flange upon the spacer element is spaced from the door proving gripping surfaces. A housing enclosing an ultraviolet light source overlies the spacer element and directs germicidal light rays over the pushing and gripping surfaces.

Claims

1. A sanitary door handle comprising:

a plate having a pushing surface facing away from the door;

a spacer element mounting and interconnecting the plate and door;

a peripheral flange upon the spacer extending outwardly from the plate;

said flange having a gripping surface spaced from and facing the door;

a housing being located above the plate;

said housing including a removable cover and also including a light chamber within the housing;

said light chamber including an ultraviolet germicidal light source;

said cover including a downwardly and forwardly slanted top having a cut away rectangular recess therein, a corresponding shaped access plate being nested within the cover recess; and

shielding means supported on and depending from the cover and enclosing the light source for directing the ultraviolet germicidal light upon the pushing and gripping surfaces to thereby sanitize the handle and shield points above the housing from exposure to the ultraviolet light.

2. The self sanitizing door handle of claim 1, wherein said housing is mounted upon and extends transversely of said spacer element.

3. The self sanitizing door handle of claim 1 wherein the source of said light is a pair of laterally spaced ultraviolet light bulbs within the chamber.

4. The self sanitizing door handle of claim 3, wherein said shielding means includes a pair of laterally spaced elongated downturned reflectors of general U-shape supported within the housing and enclosing the bulbs respectively.

5. The self sanitizing door handle of claim 1, wherein said housing includes a bottom wall upon the housing having formed therein a series of reticulated converging apertures therethrough for directing ultraviolet light rays to the surfaces.

6. The self sanitizing door handle of claim 5, wherein said apertures are longitudinally spaced and in laterally spaced rows.

7. The self sanitizing door handle of claim 5, wherein said cover has opposed pairs of electrical receptacles depending therefrom;

said bulbs at their ends being supported within the pairs of receptacles whereby removal of the cover facilitates access to said bulbs.

8. The self sanitizing door handle of claim 5, wherein the plate is translucent,

a pair of opposed spaced electrical receptacles being within the spacer element,

a fluorescent light bulb being mounted within the receptacles for illuminating the push plate, and

an electrical circuit including a power source and an inverter being connected to all of the bulbs for simultaneous and continuous energization thereof.

9. The self sanitizing door handle of claim 1, wherein said shielding means includes an elongated down-turned reflector of general U-shape supported within the housing and enclosing the bulb.

10. The self sanitizing door handle of claim 1, wherein said plate is translucent,

a pair of opposed spaced electrical receptacles being within the spacer element, and

a fluorescent light bulb being mounted within the receptacles for illuminating the push plate.