Method of and apparatus for continuous non-destructive testing of bar-shaped specimens
Patent 5292007 Issued on March 8, 1994. Estimated Expiration Date: 
March 11, 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.
March 11, 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 2781905 2885076 3010577 Yield strength determination of ferromagnetic materials Parts sorting systems Automatic pipe inspection and repair system Patent #: 4787549 InventorsAssigneeApplicationNo. 667426 filed on 03/11/1991US Classes:209/518, Condition responsive means controls separating means209/556, Diverse electrical tests209/571, Electrical test sensing property of item209/605, Items separated into at least three classes324/227, Plural tests324/238Material flaw testingExaminersPrimary: Skaggs, H. GrantAssistant: Nguyen, Tan T. Attorney, Agent or FirmInternational ClassB07C 005/14Foreign Application Priority Data1990-03-15 DEAbstractMethod of and apparatus for continuous non-destructive testing of bar-shaped specimens formed of iron-containing material of specific quality characteristics, where the bar-shaped specimens, such as pipes, move on a roll table (2) along an elongated path through two testing blocks (8, 9) spaced apart along the path. The testing blocks (8, 9) are mechanically decoupled from one another and are logically linked to an electronic testing installation (10). As a specimen moves through a first testing block (8) a signal is developed indicating the presence or absence of flaws and their location in the specimen. The location is referred to the length of the specimens. The testing blocks (8, 9) are located between a supply station (1) and a sorting station (3) with the roll table (2) extending between the two stations. Based on the signals generated, the specimens are sorted in the sorting station between an accepted tray (4) and a number of rejected trays (5, 6, 7) for reworkable or scrap specimens.Field of SearchSorting lumber, logs, pipes, rails, or like itemsCondition responsive means controls separating means Condition responsive means controls separating means Diverse electrical tests Magnetic test sensing property of item Electrical test sensing property of item Reflected from item Sonic or supersonic energy Items separated into at least three classes Material flaw testing Material flaw testing Material flaw testing Plural tests | |
