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Cleaning systemRelated Patent Categories: Pumps, Motor Driven, Electric Or Magnetic Motor, Rotary Motor And Rotary Nonexpansible Chamber Pump, Having Means To Mount Pump And Motor In Working PositionCleaning system description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070166179, Cleaning system. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to universally mounted fans and more particularly to an improved construction for such fan use in textile mills, laundries or any other operation where removing lint from ceilings, walls, floors and machinery is desired. [0003] 2. Description of the Prior Art [0004] Lint accumulation in textile mills and laundries on machinery, ceilings and walls is to be avoided wherever possible. Air blasts and traveling cleaners have been extensively used for this purpose, and some cleaners have been specifically designed for sweeping floor and aisle areas. [0005] Air blast fans have, for the most part, been effective in keeping lint collection off machinery, ceilings and floors especially when they are placed in groups with other fans, however they are limited to an area or pattern where cleaning takes place because of the structure on which they are positioned. They can be programmed to cut off whenever certain areas are to be "shadowed," however they are restricted to directing a large volume of air to the same locations in the facility. There has been some variation in airflow pattern because of the presence of a crank arm that connects to one end of a crank rod which is connected to the fan casing and causes the casing and fan to oscillate from a horizontal position to a near vertical position when the crank arm is rotated. The crank arm is provided with a row of spaced holes for attaching the crank rod thus providing some adjustment in the effective length of the crank arm and thus some variation in the air flow pattern. However when a more deliberate, different pattern is desired, the crank rod will need to be changed to a different length thus requiring major down and maintenance on the fan. [0006] Thus a more efficient and less expensive air flow change is needed, and it is to that need that the present invention is directed. SUMMARY AND OBJECTIVES OF THE INVENTION [0007] The present invention is a cleaning system having a high velocity fan held within an air-directing casing movably mounted between the lower ends of an inverted U-shaped yoke. A blade structure within the casing assures that air is directed outwardly in a narrow beam. The system rotates as a whole about a vertical extendable support trube and the casing and fan oscillate about a horizontal axis through a vertical sweep angle which can extend from horizontal to near-vertical, both in the upper and lower direction. A crank arm is connected to the U-shaped yoke and to one end of a crank rod which, in turn, connects with the fan casing. Rotation of the crank arm displaces the crank rod so that casing and fan oscillate about the horizontal axis where the casing is held by the inverted yoke lower ends. The crank arm has spaced apart holes to provide adjustment in the effective length of the crank rod. More adjustment in the length of the crank rod is obtained by using a two piece crank rod with the free end of each crank rod piece adjustably secured to a connecting rod. Thus the length of the crank rod can be changed as needed without the need of replacing it with a crank rod of a different length thus eliminating the down time and inefficiency occurring when the existing crank rod is removed and another crank rod of a different size is installed. One or more extendable sway braces may be used in the support structure, so that the support tube, the sway braces and the cronk rod can all be adjustably changed without removing and replacing them. A newly designed crank arm having additional spaced apart holes adds additional adjustability features. [0008] From the foregoing summary it will be apparent that the principle objective of the present invention is to provide a crank rod length adjusting means that will result in greater efficiency and time savings than occurs from the use of a traditional single member crank rod. [0009] Another objective of the present invention is to use a two piece crank rod with an adjustable connecting rod to vary the length of the crank rod rather than replacing it with a crank rod of a different size. [0010] Still another objective of the present invention is to provide an adjustable support rod and one or more adjustable sway braces to be certain that the entire structure can be changed consistently with a change in the length of the crank rod. [0011] Yet another objective of the present invention is to design and use a new crank arm that has adjustable settings than previously used. [0012] Thus there has been outlined the more important features of the invention in order that the detailed description that follows may be better understood and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto. In that respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its arrangement of the components set forth in the following description and illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. [0013] It is also to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting in any respect. Those skilled in the art will appreciate that the concept upon which this disclosure is based may readily be utilized as a basis for designing other structures, methods and systems for carrying out the several purposes of this development. It is important that the claims be regarded as including such equivalent methods and products resulting therefrom that do not depart from the spirit and scope of the present invention. The application is neither intended to define the invention of the application, which is measured by its claims, nor to limit its scope in any way. [0014] Thus, the objectives of the invention set forth above, along with the various features of novelty, which characterize the invention, are noted with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific results obtained by its use, reference should be made to the following detailed specification taken in conjunction with the accompanying drawings wherein like characters of reference designate like parts throughout the several views. [0015] The drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. They illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0016] FIG. 1 is a side elevational view of a high velocity fan with a conventional crank rod and crank arm. [0017] FIG. 2 is an upward perspective view of a conventional high velocity fan. [0018] FIG. 3 is an enlarged, fragmentary and partial perspective view of the crank arm and crank rod length adjusting device of the present invention. [0019] FIG. 4 is a top plan view of a conventional crank rod and the two piece crank rod of the present invention shown in the shortest condition. [0020] FIG. 5 is a top plan view of a conventional crank rod and the two piece crank rod of the present invention shown in the longest condition. [0021] FIG. 6 is a side elevational view of an expandable support tube utilizing the present inventive concept. Continue reading about Cleaning system... Full patent description for Cleaning system Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Cleaning system patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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