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US 8,984,760 B1Granted
Force controlled go/no-go measurement system
AssigneeThe Boeing Company
InventorsBrian A. Thompson, Donald E. Henry
Life of this patent
Estimating the term…
Abstract
A go/no-go gauge for hole tolerance measurement incorporates a handle, a first pin having a first diameter extending from a first end of the handle and a second pin having a second diameter extending from a second end of the handle. A force measurement element is disposed between the ends of the handle and configured to provide an indication upon exceeding a predetermined force level when attempting to insert one of the pins into a hole.
Claims20
A go/no-go gauge for hole tolerance measurement comprising:
- a handle;
- a first pin having a first diameter extending from a first end of said handle;
- a second pin having a second diameter extending from a second end of said handle;
- and
- a force measurement element, said force measurement element disposed between the ends of said handle and configured to provide an indication upon exceeding a predetermined force threshold when attempting to insert one of said pins into a hole.
2 more elements
A go/no-go gauge comprising:
- a handle comprising a first half and a second half;
- a first pin having a first diameter extending from a distal end of said first half of said handle;
- a second pin having a second diameter extending from a distal end of said second half of said handle;
- and
- a load cell, said load cell disposed between proximal ends of said first half and said second half of said handle and configured to provide an indication to an operator should a force exceeding a specified level be applied when attempting to insert one of said pins into a hole.
2 more elements
A method for go/no-go gauging of a hole comprising:
- determining a force threshold for avoiding a force-through of at least one of a lower-tolerance-measurement pin and an upper-tolerance measurement pin of a gauge system based on a composition and a thickness of a material in which the hole is present;
- attempting to insert a lower-tolerance measurement pin into the hole;
- accepting the hole as meeting a lower tolerance if the lower-tolerance measurement pin is received in the hole without reaching the force threshold during the previous step, wherein reaching the force threshold induces an indicating signal.
Dependencies are inferred from the claim text.