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  Cordless compressorUSPTO Application #: 20060104836Title: Cordless compressor Abstract: The present invention is directed to a cordless air compressor. In an embodiment of the present invention, an air compressor includes a pump for generating a supply of compressed air. A motor is coupled to the compressor pump in order to provide mechanical energy sufficient to generate the supply of compressed air. An electrical system including a docking station, an electrical supply connection device and a switch is electrically coupled to the motor. The docking station is constructed to receive a removable rechargeable battery. In a further embodiment, a battery for which the docking station is configured to receive is operable for use with at least one battery powered tool. The switch is configured to varying the source of electrical energy to be supplied to the motor between the battery and a conventional electrical supply provided by the electrical supply connection device. The electrical system is additionally configured to charge a removable battery (received in the docking station), if electrical supply connection device is supplying electricity to the motor and a battery is present in a docking station. (end of abstract)
Agent: The Black & Decker Corporation - Towson, MD, US Inventor: Alan Phillips USPTO Applicaton #: 20060104836 - Class: 417411000 (USPTO) Related Patent Categories: Pumps, Motor Driven, Electric Or Magnetic Motor, Including Electric Power Generating Or Storage Means The Patent Description & Claims data below is from USPTO Patent Application 20060104836. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE [0001] The present application claims priority under 35 U.S.C. .sctn.119(e) to U.S. Provisional Patent Application Ser. No. 60/442,870, entitled: Cordless Compressor, filed on Jan. 27, 2003, which is hereby incorporated by reference in its entirety. FIELD OF THE INVENTION [0002] The present invention generally relates to the field of power tools and more particularly to a battery powered pneumatic compressor having a dual electrical power capability. BACKGROUND OF THE INVENTION [0003] Pneumatic tools have proliferated jobsites and workshops. While pneumatic tools have increased in popularity, jobsites often lack sufficient access to electrical services, or the electrical services provided are limited or are remotely located. As a result, tradesmen using pneumatic tools typically have to share limited electrical outlets, carry large lengths of extension cords, long air hoses, and the like to accommodate site conditions. For example, roofers use long hoses to connect to a compressor on the ground floor. In another example, a new home construction site may only have a temporary utility pole set-up on the lot. Further, compressors employing gasoline engines may be noisy, heavy, create fumes, require re-fueling, and may be difficult to transport over uneven ground. [0004] In some instances, fuel canister nail guns have been utilized in place of pneumatic fasteners to overcome the difficulties in obtaining an appropriate supply of air. Drawbacks to this type of tools include cost, maintenance, the high cost of fuel canisters/the often propriety nature of the fuel/canisters, in some instances the need for specialty fasteners, and the like. [0005] Additionally, pneumatic compressors typically have a (relatively) high energy demand. For example, a 4 (four) gallon compressor operating at in the range of 135 psi to 150 psi (pounds per square inch) may require in the range of 10-15 amps in order to compress the air sufficiently to operate a pneumatic device such as a pneumatic fastener, an impact wrench and the like. Therefore the compressor must pressurize a sufficient quantity of air to at least a minimum operating pressure in order for the pneumatic device to operate properly. For instance, a brad nailer typically requires a much smaller quantity of air to drive a brad nail than is required for a framing nailer to drive a large nail such as a 16 d (sixteen penny nail). As a result, a pressure tank is typically included to store a sufficient quantity of air in order to meet a user's short term demand (e.g., a few shots of a pneumatic fastener in quick succession, a burst from an impact wrench sufficient to secure a lug nut), thereby allowing the compressor pump to "catch-up", or making no demand on the compressor pump. While the compressor usually is configured to handle a temporary demand of the type described above, the additional compressed air stored in a tank is usually surplus of air which may never be effectively utilized. In the foregoing situation, the compressor pump may expend a (relatively) large amount of energy in order to pressurize the air, in comparison to the energy expended to pressurize the air which is utilized to operate the pneumatically power device or attachment. [0006] Therefore, it would be desirable to provide a compressor capable of utilization in environments lacking an electrical supply while providing a suitable airflow without the drawbacks previously experienced. SUMMARY OF THE INVENTION [0007] Accordingly, the present invention is directed generally to a cordless pneumatic compressor having a dual electrical power capability. [0008] In an aspect of the present invention, an air compressor includes a pump for generating a supply of compressed air. A motor is coupled to the compressor pump in order to provide mechanical energy sufficient to generate the supply of compressed air. An electrical system including a docking station, an electrical supply connection device and a switch is electrically coupled to the motor. The docking station is constructed to receive a removable rechargeable battery. In a further embodiment, a battery for which the docking station is configured to receive is operable for use with at least one battery powered tool. The switch is configured to varying the source of electrical energy to be supplied to the motor between the battery and a conventional electrical supply provided by the electrical supply connection device. The electrical system is additionally configured to charge a removable battery (received in the docking station), if electrical supply connection device is supplying electricity to the motor and a battery is present in a docking station. [0009] In a further aspect of the invention, an air compressor includes a pump for generating a supply of compressed air. A motor is coupled to the compressor pump in order to provide mechanical energy sufficient to generate the supply of compressed air. An electrical system including a docking station, an electrical supply connection device and a switch is electrically coupled to the motor. The docking station is constructed to receive a removable rechargeable battery. The switch is configured to automatically vary the source of electrical energy to be supplied to the motor to the battery if no electricity is supplied from the electrical supply connection device. The electrical system is additionally configured to charge a removable battery (received in the docking station), if electrical supply connection device is supplying electricity to the motor and a battery is present in a docking station. [0010] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed. The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention and together with the general description, serve to explain the principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0011] The numerous advantages of the present invention may be better understood by those skilled in the art by reference to the accompanying figures in which: [0012] FIG. 1 is a perspective view of a compressor in accordance with an aspect of the present invention; [0013] FIG. 2 is a perspective view of a compressor in accordance with an aspect of the present invention; [0014] FIG. 3 is a side elevation view of the compressor of FIG. 1; [0015] FIG. 4 is a diagrammatic layout of an exemplary compressor; and [0016] FIG. 5 is a perspective view of a bucket compressor in accordance with an aspect of the present invention; [0017] FIG. 6 is a partial cut-away view of the compressor of FIG. 5; [0018] FIG. 7 is a perspective view of a bucket compressor including a retractable cord in accordance with an aspect of the invention; and [0019] FIG. 8 is a partial cut-away view of the compressor of FIG. 7. Continue reading... Full patent description for Cordless compressor Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Cordless compressor 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. Start now! - Receive info on patent apps like Cordless compressor or other areas of interest. ### Previous Patent Application: Portable air compressor tool carrier Next Patent Application: Air compressor shroud assembly Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Cordless compressor patent info. IP-related news and info Results in 0.8628 seconds Other interesting Feshpatents.com categories: Qualcomm , Schering-Plough , Schlumberger , Seagate , Siemens , Texas Instruments , |
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