Shoe or boot provided with tank chambers
Patent 5230249 Issued on July 27, 1993. Estimated Expiration Date: 
August 7, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 7, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2558805 3355942 Electronic music pace-counting shoe Device for determining the speed, distance traversed, elapsed time and calories expended by a person while running Electronic pedometer with step sensor in removable insole Electronic pedometer Orthopedic limb load monitor Patent #: 5107854 InventorsAssigneeApplicationNo. 741753 filed on 08/07/1991US Classes:73/714, Combined36/29, Pneumatic36/93, Form-fitting interior36/132, Attachment (e.g., weight for shoe, etc.)73/172, ORTHOPEDIC PRESSURE DISTRIBUTION73/756Mounting and connectionExaminersPrimary: Woodiel, Donald O.Attorney, Agent or FirmForeign Patent References
International ClassG01L 007/00Foreign Application Priority Data1990-08-20 JPAbstractA footwear of the present invention is provided with tank chambers which are disposed to be in contact with an instep, sole and ankle of the user for applying pressure thereto to protect his foot from shocks. The tank chambers are filled with air and air pressure within the tank chambers can be adjusted. The footwear is further provided with a pressure sensor for measuring air pressure within the tank chambers to generate a pressure signal, and a pressure data displaying device for indicating pressure data on the basis of the pressure signal generated by the pressure sensor. Therefore, the user can make sure on the pressure data display device a pressure level at which the most suitable pressure for his foot is obtained. The user is also allowed to extremely easily adjust the air pressure at the above pressure level, watching an indication on the pressure data display device.Field of SearchORTHOPEDIC PRESSURE DISTRIBUTIONNAVIGATION Combined Mounting and connection Diaphragm With protective separator Inflatable or expandible by fluid Material impelled by means (e.g., diaphragm, piston) moved by gas or vacuum pressure Material impelled by pump Attachment (e.g., weight for shoe, etc.) Athletic shoe or attachment therefor Pneumatic | |
