BACKGROUND OF THE INVENTION

Technical Field of the Invention

The present invention relates generally to disinfecting and sterilizing door access devices such as door handles and alike that are touched by a user’s hand by incorporating into the door access device a source of ultraviolet C self-sterilizing germicidal light.

It is well established that germs from hands are easily communicated to a person’s face especially when the hands touch the face several times a minute , as for example the eyes are rubbed, the nose is touched and other times when the hands consciously and unconsciously touch the face.

Since the exposed face is more than any other part of the human body more susceptible to transmitting germs to the body’s systems it imperative to maintain as best as possible a germ-free face and hands-free of pathogens which can enter the eyes, ears, mouth, nose, etc.

Description of the Prior Art

The prior art includes UV sanitizing patents that includes Visco et al ., U.S. Patent No. 4,856,140, issued August 15, 1989; Manson et al., U.S. Patent No. 6,289,557, issued September 18, 2001; Jones, U.S. Patent No. 7,175,807, issued February 13, 2007; Sassoon, U.S. Patent No. 7,360,674, issued April 22, 2008; Stropkay et al., U.S. Patent No. 7,458,742, issued December 2, 2008; Jones, U.S. Patent No. 7,598,501, issued October 6, 2009; Zevallos, U.S. Patent No. 7,716,789, issued May 18, 2010; Balzano, U.S. Patent No. 8,353,085, issued January 15, 2013; Caron, U.S. Patent No. 8,375,521, issued February 19, 2013; Bracey, U.S. Patent No. 9,051,757, issued June 9, 2015; Brennan, U.S. Patent No. 9,200,771, issued December 1, 2015; Roberts etal ., U.S. Patent No. 9,376,833, issued June 28, 2016; and Strombeck etal., U.S. Patent No. 10,422,158, issued September 24, 2019.

While these patents may be suitable for the purposes for which they were designed, they would not be as suitable for the purposes of the present invention as heretofore described. It is thus desirable to provide a system to prevent contamination of the face and the implications of transmitting germs to the face.

SUMMARY OF THE INVENTION

A primary object of the present invention is to provide a system for sanitizing door access devices such as door handles to prevent transmission of pathogens from door handles to a person’s hand and subsequently to a person’s face.

Another object of the present invention is to provide a means to disinfect the door handles for the prevention of pathogens to contact a person and spread disease and other unsanitary conditions.

Another object of the present invention is to utilize LED as a source of ultraviolet C self-sterilizing germicidal light for hand sanitization.

ROTA TING MOTOR

The instant invention provides a rotating UVC LED motor and power transfer to printed circuit board for ultraviolet C self-sterilizing germicidal light to doorknobs, door levers, door pulls and other devices reducing required LEDs by 75%.

Producing a uniform irradiance map for surface decontamination through quartz from inside a device such as our door lever and other devices means that the projection angles of the LEDs will require for example, 24 or more LEDs for some door levers and 36 or more for a door pull.

By utilizing the rotating printed circuit board with LEDs on it we’re able to reduce the number of LEDs by ¾ and still achieve the required dosage.

A rotating motor system places a small motor inside of the door lever handle which connects to a power source and the printed circuit boards which make the LEDs function.

The device may be programmed for LEDs to irradiate at any desired time and as well the speed of the motor and rotations may be varied as desired.

Importantly, small motors to achieve this effect are readily available for purchase and implementation and the invention uses the motor and a unique connection to the circuit board and electronics.

SUCCESSIVE FIRING

If desired, successive firing of the LEDS permits conservative peak amperage demands. For example, a door lever with 6 UVC LEDs requires 4w/LED or 24W. By using 2 “strings” of LEDs permits turning-on 3 LEDs at a time then successively the other 3 LEDs. Accordingly, only 12 watts are needed at any time and is particularly useful for limiting volume of power needed at any time when using batteries as the source.

FROSTED APPEARANCE

Invention provides a method for obtaining a ‘frosted’ or “milky” appearance to quartz using a clear factory quartz product and then modifying it with engraving. “Milky” quartz is currently available however sizes are limited and it’s expensive and the method allows a logo to be present on our ‘milky’ quartz. The resultant product is both aesthetic in that it appears pleasing. As well, the milky or frosted surface conceals the internal electronics of the device so that it doesn’t appear “robotic.” Engraving is inexpensive and allows us to use most any custom size with rapid frosted appearance easily and economically achievable. This method also enables a type of “echoing” wherein even a single LED UVC chip may be enabled to irradiate the entire surface of the door lever by internally ‘bouncing’ from refraction created by the milky or frosted surface. The ‘echoing’ then allows a reduction in the amount of LED UVC chips need to achieve sterilization of the quartz surface and accomplishes a major reduction in amperage needed to power the device and as well results in a significant cost reduction.

WALL WORT RECHARGING SYSTEM

Provided is a wall wort recharging system for batteries for ultraviolet C sterilizing germicidal light door accessories such as door levers, door push/pull devices etc . Our previous patents reference batteries as power source for the devices. Our power-transfer systems allow for power without batteries. Our wall wort 9v (and other voltages) plug-in jack allows for rapidly recharging batteries without physical removal of batteries. The within described wall wort system can also be used as easier than AC hard-wiring yet a quick and easy install that can be made permanent without our snap-together DC track systems.

The foregoing and other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying drawing, which forms a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced.

Other objects and features of the present invention will become apparent when considered in combination with the accompanying drawing figures, which illustrate certain preferred embodiment of the present invention. It should, however, be noted that the accompanying drawing figures are intended to illustrate only select preferred embodi ments of the claimed invention and are not intended as a means for defining the limits and scope of the invention.

BRIEF DESCRIPTION OF THE DRAWING FIGURES

In the drawing figures, wherein similar features are denoted with similar reference numerals throughout the several views: FIG. l is a perspective view of the ultraviolet C self-sterilizing germicidal light emitting door handle/lever access device for hand sanitation as it would be installed on both sides of a door with the door omitted;

FIG. 2 is another perspective view of the ultraviolet C self-sterilizing germicidal light emitting door handle/lever access device for hand sanitation shown as it would be conventionally installed on both sides of a door with door omitted;

FIG. 3 is a perspective view of one side the ultraviolet C self-sterilizing germicidal light emitting door handle/lever access device for hand sanitation;

FIG. 4 is a partial perspective view of the ultraviolet C self-sterilizing germicidal light emitting door handle/lever access device for hand sanitation illustrating the spinning UVC LED board containing the UVC LED light source;

FIG. 5 is an exploded view of the ultraviolet C self-sterilizing germicidal light emitting door handle/lever access device for hand sanitation;

FIG. 6 is another exploded view of the ultraviolet C self-sterilizing germicidal light emitting door handle/lever access device for hand sanitation;

FIG. 7 shows the successive firing of the UVC LEDs in the rotating tube handles;

FIG. 8 is a perspective partial view illustrating a frosted quartz translucent tube handle with the entire surface engraved, except for a logo, thereby obscuring the electronics within the quartz tube from viewer which will be a saving over a much more costly “milky” quartz;

FIG. 9 is a perspective partial view illustrating high intensity, narrow LED projections; FIG. 10 illustrates electrical power being transmitted from a doorjamb to the motor that rotates the spinning UVC LEF board;

FIG. 11 illustrates the electrical communication from the doorjamb to the motor;

FIG. 12 is partial perspective view of the electrical connections on the door displaced from the door handle;

FIG. 13 illustrates a battery powered door handle/lever with a removable cover that covers the requisite battery which powers the rotating tube handles;

FIG. 14 depicts the battery with its cover removed; and,

FIG. 15 illustrates batteries affixed to the door handle.

DESCRIPTION OF THE REFERENCE NUMERALS

10 door handle latch assembly of invention in place on door 10a doorjamb in wall 10b door

12 first translucent door tube handle with internal rotating UVC LED board

12a second translucent door tube handle with internal rotating UVC LED board

14 end plug with aperture to engage with first end of translucent tube to accept projection from first end of rotating UVC LED circuit board 14a projection 14a at first end of rotating UVC LED circuit board 14b projection 14b at second end of rotating UVC LED circuit board 16 flange at second end of translucent tube

18 rotating UVC LED circuit board with attached sequencing UVC LED light source 18a successive firing UVC LED light source 20 UVC LED board connector to motor 22 slip rings for rotating electrical connections 24 electric motor for rotating UVC LED board 26 coupling/adapter housing containing components

28 control board

30 power contact frame

32 successive firing of numbers 2, 4 and 6 UVC LEDs

34 successive firing of numbers 1, 3 and 5 UVC LEDs

36 frosted quartz tube

38 high intensity narrow LED projections

40 electrical contact(s) on door handle assembly

42 electrical contact(s) in doorjamb assembly

44a electrical distribution junction

44 battery cover of door handle assembly

46 battery on door handle assemble with cover removed

48 another preferred embodiment of battery on door handle assembly

50 electrical conduits on door

52 electrical conduits on doorjamb

54 electrical source, typically 120-volt AC current

DETAILED DESCRIPTION OF THE DRAWING FIGURES

AND PREFRERRED EMBODIMENTS

Turning now, in detail, to the accompanying drawing figures, FIG. 1 illustrates the invention 10 assembled to door 10b (shown in phantom) with translucent door tube handle 12 on one side of a door and a second translucent door tube handle 12a on the other side of door 10b. Doorjamb 10a is illustrated in phantom.

FIG. 2 partially illustrates invention 10 with two translucent door handles, namely 12 and 12a set part from one another, FIG. 3 is a partial perspective view of invention 10 illustrating door tube handles 12 and 12a.

FIG. 4 depicts successive firing UVC LEDs 18a located on rotating circuit board 18 contained in translucent door handle tubes 12 and 12a.

FIG. 5 is a partial exploded view of invention 10 illustrating end plug 14 affixed to one end of translucent door tube handle 12, end plug 14 containing an aperture to accept projection 14a of rotating UVC LED circuit board 18. At the second end of rotating UVC LED circuit board is projection 14b that connects with connector 20, which passes through slip rings 22 which in turn is connected to electric motor 24.

FIG. 6 is a further exploded view of invention 10 illustrating coupler adaptor housing 26 that contain system components. Also shown is control board 28 and power control frame 30.

FIG. 7 illustrates rotating successive firing from UVC LED light source 18a within translucent door tube handle 12. As shown 32 indicates firing of UVC LED numbers 2, 4 and 6 firing and then successively at 34 firing of UVC LED numbers 1, 3 and 5. Any number of UVC LED light sources may be utilized on rotating UVC LED circuit board 18. If desired successive firing of the LEDs permits conservative peak amperage demands, that is a door lever with 6 UVC LEDs than requires 4 watts each or a total of 24 watts and by using 2 “strings” of LEDs permits energizing 3 LEDs at a time and subsequently and the other 3 LEDs. Accordingly only 12 watts are needed at any time and is particularly useful for limiting volume of power needed at any time when using batteries as the electrical energy source and the rotation permits an even, economical and uniform dispersion of the UVC LED light.

FIG. 8 illustrates a frosted, clear and/or translucent quartz tube 36 in conjunction with invention 10. FIG. 9 depicts UVC LED light projections 38 contained within door handle tube

12

FIG. 10 illustrates the apparatus for supplying electrical power (commonly 120- volt AC) 54 to electrical contacts 40 on door handle latch assembly 10. Electrical conduit 52 on doorjamb 10a connects to electrical contacts 42 in doorjamb so that electric power is transmitted when contacts 40 and 42 contact each other. Electrical distribution junction 42a is contained in doorjamb in wall 10a.

FIG. 11 shows a single translucent door tube handle 12 in contact with electrical distribution junction 44a in door jam in wall 10a and electrical contacts 40 on door handle assembly are in contact with electrical contacts 42 in electrical distribution junction 42a and accordingly the rotating successive firing emitting translucent ultraviolet C self-sterilizing germicidal light tube is energized.

FIG. 12 illustrates electrical contacts 40 connected by electrical conduits 50 to door handle latch assembly 10.

FIG. 13 depicts battery cover 44 as an alternate power source to rotate door tube handle 12 and 12a and also to supply electrical energy to successive firing of UVC LEDs 32 and 32a.

FIG. 14 depicts battery 44 with its cover 46 removed.

FIG. 15 illustrates batteries 48 affixed to invention 10 and translucent door tube handle with internal rotating UVC LEDs 12.

While only several embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that many modifications may be made to the present invention without departing from the spirit and scope thereof.