Small-diameter and long-length expansion sensor
May 19, 2008. 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 3310972 Sleeving method Method of pressure fitting a tube in a tube sheet Method of joining tubular member and annular parts Camshaft assembly and method Fastening system including a pull type fastener for constructing articles such as shipping containers and the like Vapor blasted bullet jacket Power transmission Method of fastening drive elements of a hollow shaft Camshaft for reciprocating piston engines InventorApplicationNo. 07/196149 filed on 05/19/1988US Classes:74/567, Cams29/523, Radially expanding internal tube29/888.1Camshaft makingExaminersPrimary: Luong, Vinh T.Attorney, Agent or FirmInternational ClassesB21D 39/08 (20060101)B21D 39/20 (20060101) Foreign Application Priority Data1987-05-25 DEAbstractA cylindrical sensor for the sectional expansion of hollow shafts by exerting fluid pressure includes a sensor body to be disposed in a hollow shaft. The sensor body has an end and includes a sensor surface having sections corresponding to sections of the hollow shaft to be expanded. The sensor body has an outer hollow cylinder with substantially radial bores formed therein. The bores discharge partly in the sections of the sensor surface and the bores have inner ends. The sensor body has an inner cylinder onto which the outer hollow cylinder is forced. The outer hollow cylinder has an inner cylindrical surface and the inner cylinder has an outer cylindrical surface. At least one of the cylindrical surfaces has at least two longitudinal grooves formed therein communicating with the inner ends of the radial bores and forming inflow lines and drain lines for pressure fluid extending from the end of the sensor body. | |
