| Cordless power system -> Monitor Keywords |
|
|
 
Cordless power systemCordless power system description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060087283, Cordless power system. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Application No. 60/619,843, filed on Oct. 18, 2004. The disclosure of the above application is incorporated herein by reference. FIELD OF THE INVENTION [0002] The present invention relates to cordless power systems, and more particularly, to a cordless system in which the cordless system components include a cordless power device, a battery pack, and a charger. BACKGROUND OF THE INVENTION [0003] Cordless products which use rechargeable batteries are prevalent throughout the workplace as well as in the home. From housewares to power tools, rechargeable batteries are used in numerous devices. Ordinarily, nickel-cadium or nickel-metal-hydride battery cells are used in these devices. Since the devices use a plurality of battery cells, the battery cells are ordinarily packaged as battery packs. These battery packs couple with the cordless devices and secure to the device. The battery pack may be removed from the cordless device and charged in a battery charger or charged in the cordless device itself. SUMMARY OF THE INVENTION [0004] A cordless system has cordless system components that include a cordless device, such as a cordless power tool, a battery pack and a charger. The battery pack is mated with either the cordless device to provide power to operate the cordless device or to the charger to charge the battery cells in the battery pack. In an aspect of the invention, the cordless system has an analog identification and communication system by which the battery pack identifies and communicates information about the battery pack to the cordless device or to the charger to which the battery pack is mated. In an aspect of the invention, the cordless system has a hybrid analog/digital identification and communication system. In an aspect of the invention, the cordless system has a digital only identification and communication system. In an aspect of the invention, the cordless system has a mechanical identification system. [0005] In an aspect of the invention, the battery pack of the cordless system is capable of multiple modes, such as controlling the cordless device and controlling the charger. In an aspect of the invention, the battery pack validates the cordless device or charger to which it is mated. [0006] In an aspect of the invention, the cordless system uses any of a wired interface, radio frequency interface, an optical interface or a magnetic interface to communicate information between the battery pack and the cordless device or charger to which the battery pack is mated. [0007] In an aspect of the invention, female terminals are used in a terminal block of the battery pack to protect against foreign objects contacting the terminals. [0008] In aspect of the invention, the terminals in the terminal block of the battery pack are staggered or scattered to reduce the likelihood of a short circuit. [0009] In an aspect of the invention, the battery pack has a trap door that closes when the battery pack is not mated to a cordless device or charger to protect the terminal block of the battery pack. [0010] In an aspect of the invention, multi-spring, split contact terminals are used in the terminal block of at least one of the cordless system components. In an aspect of the invention, the multi-spring, spilt contact terminals are used in the terminal block of the battery pack. [0011] In an aspect of the invention, the cordless device is a cordless power tool having a push-pull trigger that both controls the speed of the motor of the cordless power tool and reverses the direction of the motor. In an aspect of the invention, the battery pack includes a controller that controls the motor of the cordless power tool. In an aspect of the invention, linearity adjustment potentiometers are provided to allow control resolution of the resistance of a potentiometer of the trigger to be set among exponential resolution, logarithmic resolution, and linear resolution. [0012] In an aspect of the invention, the battery cells are lithium ion cells and the cordless device is a cordless power tool that includes soft braking. [0013] Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0014] The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein: [0015] FIG. 1 is a side sectional view of a cordless power tool; [0016] FIG. 2A is a schematic system diagram of the functional control of a battery pack and battery charger according to an aspect of the invention; [0017] FIG. 2B is a schematic system diagram of the functional control of a battery pack and cordless power tool according to an aspect of the invention; [0018] FIG. 3 is a simplified schematic diagram of an analog identification and communication system for a cordless system in accordance with an aspect of the invention; [0019] FIG. 4A is a simplified schematic diagram of a digital/analog hybrid identification and communication system for a cordless system in accordance with an aspect of the invention; Continue reading about Cordless power system... Full patent description for Cordless power system Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Cordless power 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. Start now! - Receive info on patent apps like Cordless power system or other areas of interest. ### Previous Patent Application: Implement rack and system for energizing implements Next Patent Application: Cordless power system Industry Class: Electricity: battery or capacitor charging or discharging ### FreshPatents.com Support Thank you for viewing the Cordless power system patent info. IP-related news and info Results in 0.19816 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. Storage , Static Storage , Printers 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
