This invention is related to automatic eyeglass cleaners.
Whether they are for vision correction, vision protection or simply used as a fashion accessory, eyewear has long been a popular, if not indispensable, personal accessory. There are specialty eyewear which includes a wide range of eyeglasses and sunglasses that are designed for a specific purpose, such as computer use, driving, work, hobbies, eye protection and more. A huge variety of frames are available for prescription eyeglasses or sunglasses. Not only are there many different shapes and colors in eyeglass frames, but advances in technology have also brought a variety of new materials, for both the frames and the lens, which makes eyeglasses more durable, lightweight and comfortable. Eyeglass frames are now created from high-tech materials such as titanium and memory metals, while the lens are now thinner and lighter than ever before, even for high prescriptions. Lens coatings, including scratch-resistant coatings, ultraviolet treatments, anti-reflective coatings and mirror coatings, are commonly added to the lens to enhance their performance and appearance.
These high-tech frames and coated lens are expensive and are worth protecting. Unfortunately, the lens (even scratch-resistant coatings are not scratch proof) can easily be damaged by casual cleanings by the wearer, leaving the lens with a unsightly scratched surface that can hinder vision. As any eyewear user knows, eyewear can require cleaning with just a short time of wear. Because of the eyewear's close contact to the wearer, body oils, sweat, grime and dead skin cells gets trapped in the lens and frame and accumulate in little time. Dust, dirt and fingerprints on the lens add to this unwanted mess. Further, the metal finish of frames can corrode and become discolored from prolonged exposure to sweat, which is acidic in nature.
Wiping the eyewear with tissue paper or the corner of a shirt is a common practice for many eyeglass wearers. However, ordinary tissue paper and many types of cloths are highly abrasive because of their coarse fibers. Wiping the lens with these often lead to irreparable damage to the coating. Small, hard particles such as sand may also be deposited on the lens, and a simple wiping may be akin to polishing the lens with sandpaper.
Non-abrasive Micro-fiber Towels, with each strand of fiber being made of hundreds of micro-fibers (on the scale of 90,000 micro-fibers per sq. inch) have been gaining popularity in eyeglass care. These micro-fibers act to attract and hold dirt and grime, and can retain up to seven times its weight. The cloth used in micro-fiber towels is made of a matrix of polyester and polyamide weaved in such a way as to create a “clinginess” that picks up dirt. However, these towels are unable to reach tiny nooks and crannies of the eyeglass frame, and do not counteract the acidic corrosion of sweat. Further, because the cloths trap and hold grime, they get dirty very quickly and lose their effectiveness without frequent laundering.
Ultrasonic cleaners, such as the one taught in U.S. Pat. No. 4,114,194, have long been known in the field of professional jewelers and optometrists. The ability of a liquid when ultrasonically agitated to penetrate small spaces and, by cavitation, to remove foreign matter from solid objects has led to the wide use of ultrasonic cleaners in laboratories and industry. However, it is discovered that the use of ultrasonics tends to break down and remove the coating on the lens.
According to one embodiment, an eyeglass cleaner can include a clip configured to hold a pair of eyeglasses, an agitator arm coupled to the clip, and a solution tank. The agitator arm can be configured to move the clip and pair of eyeglasses in a forward and backward motion during at least one of a cleaning operation or a drying operation. The clip can be moved between a lowered position in which the clip can be located within the solution tank and a raised position in which the clip can be located above the solution tank.
According to another embodiment, an eyeglass cleaner can include a clip configured to hold a pair of eyeglasses, an agitator arm coupled to the clip, a first magnetic element of a first polarity coupled to the agitator arm, a second magnetic element of a second polarity opposite to the first polarity coupled to the clip, and a solution tank. The agitator arm can be configured to move the clip and attached pair of eyeglasses in a forward and backward motion during at least one of a cleaning operation or a drying operation. The clip can be moved between a lowered position in which the clip can be located within the solution tank and a raised position in which the clips can be located above the solution tank.
Additional features and advantages are described herein, and will be apparent from, the following Detailed Description and the figures.
According to one embodiment, an automatic eyeglass cleaner is provided. A specially formulated cleaning and conditioning solution is also provided for use with the automatic cleaner. A solution tank in the automatic cleaner can be filled with the cleaning and conditioning solution. A pair of eyeglasses can be folded up and clipped to the bottom of an open lid of the cleaner. The lid can then be closed to lower the pair of eyeglasses into the cleaning and conditioning solution in the solution tank. A cleaning operation can begin by actuating a button, for example, and the pair of eyeglasses can be moved in a forward and backward motion or agitated in the cleaning and conditioning solution. The cleaning operation can stop automatically after a pre-set time. After the cleaning operation stop, the lid of the cleaner can move to an open position excess solution can be shaken off the pair of eyeglasses during a drying operation. A thin film may be left on the lens. A microfiber cloth can be used to give the lens a touch-up and to polish the lens, thereby helping to fill in microscopic scratches on the lens. The entire process from start to finish (including the cleaning and drying operations) can last approximately one minute.
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As shown, the housing 12 can have a generally oval shape in one embodiment. Alternatively, the housing 12 can have other desired shapes such as, for example, a circular shape, a rectangular shape, a square shape, and the like. The housing 12 can be configured to house the electronics and motor for the cleaner 10, and can have operating controls 22 located thereon. The controls 22, which can be in the form of buttons as shown in
The solution tank 14 can be filled with a cleaning and conditioning solution. As shown in
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The lid 20 can be configured to move between a closed position (shown in
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The spring 32 can be configured to bias the clip 16 in the closed position. The clip 16 can be configured to move to the open position upon actuation of one or both of the first and second handle members 34a, b. Specifically, the clip 15 can be configured to move from the closed position to the open position when sufficient pressure is applied to one or both of the first handle member 34a or the second handle member 34b. When the clip 16 is in the open position, the clip 16 can receive a pair of eyeglasses 18 by positioning the upper and lower retention members 36a,b of the clip 16 over a nose bridge of a folder pair of eyeglasses 18, for example. When pressure on the first and second handle members 34a,b is removed, the clip 16 can be configured to move toward the closed position to hold the pair of eyeglasses 18 between the upper and lower retention members 36a,b. In one embodiment, the pair of eyeglasses 18 is configured to engage the plurality of toothlike projections 38 which can be, for example, rubber protrusions located on one or both of the upper retention member 36a or the lower retention member 36b, when the pair of eyeglasses 18 is held between the upper and lower retention members 36a,b.
In one embodiment, the clip 16 can include a finger grip area 40 on the second handle member 34b, for example. The finger grip area 40 can facilitate quick loading and unloading of the clip 16 into the cleaner 10 by actuating the second handle member 34b only such that the clip 16 is not moved entirely to the open position.
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Thus, the front of the lid 20 can be raised. As the lid 20 opens, it can exert pressure on the raised rubber divot 74 on the agitator arm 44 located forward of the axis 60, and can raise the agitator arm 44 to lift the pair of eyeglasses out of the cleaning and conditioning solution in the solution tank 14. To eliminate or reduce splatter as the pair of eyeglasses is lifted, the damper torsional springs 63 can be immersed in thick viscosity lubrication so that the lid 20 can open gradually.
As shown, the agitator arm 44 can be operably coupled to a motor 78 located within a motor housing 79 to move the clip 16 and pair of eyeglasses 18. As shown, the motor 78 can be located aft of axis 60. In one embodiment, The motor 78 can remain integral with the agitator arm 44 when the agitator arm 44 is raised and lowered.
In one embodiment, the motor 78 can be powered by common DC batteries 80, which can be inserted into the cleaner housing 12 through a door located on the bottom of the housing 12. The motor 78 can rotate about a shaft that can extend out of the sides of the motor 78. Weights can be mounted at each side of the motor 78. When the motor 78 is turned on, strong, rhythmic vibrations can be produced due to the weights rotating off-center at high speeds. The vibrations can be transferred directly through the motor housing 79 to the agitator arm 44 and the receptacle 50. Accordingly, the vibrations can also be transferred to the clip 16 and pair of eyeglasses 18 when the pair of eyeglasses 18 is coupled to the clip 16.
In one embodiment, the motor 78 can operate at approximately 1300 rpm, which can be sufficient to move the agitator arm 44 in a forward and backward motion to produce agitation during a cleaning operation when the pair of eyeglasses 18 is located in the cleaning and conditioning solution in the solution tank 14. The speed of the motor 78 can also be sufficient move the agitator arm 44 in a forward and backward motion to shake the pair of eyeglasses 18 substantially dry during a drying operation when the pair of eyeglasses 18 is raised above the cleaning and conditioning solution in the solution tank 14. Although the agitator arm 44 has been described as moving in a forward and backward motion during the cleaning and drying operations, it is to be understood that the agitator arm 44 can move in any desired manner during the cleaning and drying operations. For example, the agitator arm 44 can move in an up and down motion, a side to side motion, a circular motion, and the like. In one embodiment, the motor 78 can continue to operate uninterrupted at the same speed during the cleaning and drying operations, with the only difference being whether the end of the agitator arm 44 is lowered within the solution tank 14 during a cleaning operation or raised above the solution tank 14 during a drying operation.
When the lid 20 is closed, the pair of eyeglasses 18 can be lowered into the cleaning and conditioning solution in the solution tank 14. A user can then actuate the operating controls 22 such as, for example by pressing button 22, to begin the automatic cleaning operation. Actuating the operating controls 22 can activate electronic timing circuitry to turn on the motor 78. In an alternative embodiment, a mechanical or electromechanical timer can also be used. During the cleaning operation, the motor 78 can operate for a preset amount of time to agitate the pair of eyeglasses 18 in the cleaning and conditioning solution in the solution tank 14. In one embodiment, the cleaning operation can last for approximately 40-50 seconds, which can be sufficient time for the cleaning and condition solution to substantially dissolve and/or remove the dirt and/or grime from the pair of eyeglasses 18.
At the expiration of the preset amount of time for the cleaning operation, the timing circuit can begin the drying operation and can trigger an electromagnet 81 located in the housing 12, which can attract a metal piece integral with the releasable catch 72. This can pull the catch 72 toward the electromagnet 81 and can release the curved end 70 of the lid 20. As a result, the front of the lid 20 can be raised due to the tension exerted by the torsion springs 63.
When the lid 20 is opened, the agitator arm 44 (including the clip 16 with the pair of eyeglasses 18 attached to it) can be raised above the cleaning and conditioning solution in the solution tank 14. The lid 20 can pivot about the axis 60 until the front of the lid 20 engages or abuts edge 82 such that the lid 20 can remain in a fully open position and the pair of eyeglasses 18 can be held above the solution tank 14. The agitator arm 44 can continue to vibrate while in the raised position to shake the wet pair of eyeglasses 18 substantially dry. Cleaning and conditioning solution from the wet pair of eyeglasses 18 can be collected in the solution tank 14 and can be re-used in future cleanings. In one embodiment, the drying operation can last approximately 10-20 seconds, after which the timing circuit can turn the motor 78 off. As discussed above, the motor can remain running uninterrupted from the beginning of the cleaning operation to the end of the drying operation in one embodiment.
In one embodiment, the electronic timing circuitry can also control the timing of LCD or LED lights, which can be located in the housing 12 behind the solution tank 14 and can shine through the cleaning and conditioning solution to create a light show. In this embodiment, the cleaner 10 can be made of a transparent or translucent material to allow the light to shine through.
In one embodiment, the novel cleaning and conditioning solution for use with the automatic eyeglass cleaner 10 can include deionized water, Berol 226, Triethanolamine 99, Hydroxymethylglycinate, Isopropyl Alcohol, Sorbitan Mono-oleate, acid blue 9 and Polydimethylsiloxane Emulsion. Table 1 lists the percentage by weight of each ingredient in one embodiment.
Berol SA is a blend of a nonionic and cationic surfactant that can be optimized for use in water-based degreasing cleaners. It can be efficient for cleaning organic soils such as, for example, grease and oil. Triethanolamine 99% can be formed from the reaction of ethylene oxide and ammonia. It can be miscible with water and alcohol and can make the cleaning and conditioning solution alkaline, with improved grease removal and compatibility among the ingredients. A biocide, the aqueous solution of Sodium Hydroxymethylglycinate, can be derived from Glycine, which is a naturally occurring amino acid. It can have broad pectrum antimicrobial activity and can be effective against bacteria and fungi. Isopropyl Alcohol, also known as IPA, 2-propanol and isopropanol, is a colorless clear liquid with a pleasant odor. It can be a good dehydrating agent and disinfectant. Sorbitan Mono-oleate is a light amber-color surfactant that can be used as an nonionic lipophilic surface active agent. It can be an emulsion stabilizer. The aqueous emulsion of polydimethylsiloxane can be an anti-fogging agent and can give the pair of eyeglasses 18 a slick feel. It can be relatively inert, can be easy to dilute and disperse, and can be effective over a wide range of temperatures and pH conditions. Acid Blue 9, also known as Brilliant Blue FCF, C.I. Acid Blue 9, diammonium salt, C.I. Acid Blue 9, and disodium salt, is a widely used food dye. It can be a reddish-violet powder or granules with metallic luster.
In one embodiment, the cleaning and conditioning solution can be manufactured by adding the above ingredients in the following order: deionized water, Berol 226, Triethanolamine 99, Hydroxymethylglycinate, Isopropyl Alcohol, Sorbitan Mono-oleate. The mixture can be mixed until all the ingredients are dissolved and uniform. Next, 1% Acid Blue 9 can be added to the solution and mixed. Polydimethylsiloxane emulsion can then be added and the solution can continue to be mixed. In one embodiment, the solution can be mixed for at least approximately fifteen minutes to obtain the final solution in concentrate form having a pH of approximately 9.2-10.2 and a specific gravity of approximately 1.018-1.024 (gm/ml). The concentrate can be diluted to approximately 1:32 with ordinary tap water to obtain a cleaning and conditioning solution for use in the cleaner 10.
In one embodiment, the cleaning and conditioning solution can have the ability to emulsify and dissolve body oils, dirt and grime deposited on the pair of eyeglasses 18. Further, the cleaning and conditioning solution can form a thin film on surfaces it comes into contact with such as, for example, the lens of the pair of eyeglasses 18. This film can fill in micro-cracks and scratches on the surface of the lens and coating, and can help to restore the surface of the lens.
After the drying operation is complete, the clean pair of eyeglasses 18 may be substantially dry and a thin film of silicone may be deposited on the lens. A user can then reach into the open lid 20 and grab the clip 16. Pulling the clip 16 can disengage the magnet(s) coupling the clip 26 to the agitator arm 44. As a result, the clip 16 with the attached pair of eyeglasses 18 can be removed from the cleaner 10.
The handle members 34a,b of the clip 16 can be actuated to release the pair of eyeglasses 18 from the upper and lower retention members 36a,b. A micro-fiber cloth can then be used to polish and dry the pair of eyeglasses 28. This touch-up can help the silicon fill in microscopic scratches on the lens. The clean pair of eyeglasses 18 can now be worn by the user.
It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present subject matter and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.
This application is a continuation-in-part of and claims priority to U.S. patent application Ser. No. 10/954,913, filed Sep. 30, 2004, entitled “Automatic Eyewear Cleaner,” which is a continuation of U.S. patent application Ser. No 10/761,839, now U.S. Pat. No. 6,821,355, filed Jan. 21, 2004, entitled “Automatic Eyewear Cleaner,” which claims priority to U.S. Provisional Application No. 60/490,671, filed Jul. 29, 2003, entitled “Automatic Eyewear Cleaner,” and this application also claims priority to U.S. Provisional Application No. 60/630,849 entitled “Automatic Eyewear Cleaner,” filed Nov. 24, 2004, all of which are hereby incorporated by reference.
Number | Date | Country | |
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60490671 | Jul 2003 | US | |
60630849 | Nov 2004 | US |
Number | Date | Country | |
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Parent | 10761839 | Jan 2004 | US |
Child | 10954913 | Sep 2004 | US |
Number | Date | Country | |
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Parent | 10954913 | Sep 2004 | US |
Child | 11286566 | Nov 2005 | US |