Measurement device and process
AssigneeIllinois Tool Works Inc.
InventorGlenn G. Heavens
Life of this patent
Estimating the term…
Abstract
A measuring device includes a receiver having a cavity with differing narrowing diameters from an opening. The receiver can be moved axially. A part is moved a predetermined fixed distance, including movement while engaging and moving the receiver. The distance moved by the receiver is sensed, and the acceptability of the dimension of the object is determined by evaluating the distance moved by the receiver.
Claims20
A measuring device for measuring an object, said measuring device comprising:
- an axially movable body defining a receiver;
- an end of said receiver having an opening and a cavity extending inwardly in said receiver from said opening, said cavity having a surface of narrowing diameter inwardly from said opening for engaging the object to be measured;
- transport means for moving the object a fixed predetermined overall distance including a distance into said cavity;
- and
- sensing means for determining an axial distance moved by said receiver upon movement of the object said fixed distance.
A measuring device for measuring a diameter of an object, said measuring device comprising:
- an axially movable body defining a receiver axially movable by pushing the object against the receiver;
- said receiver having an opening in an end of said body and a cavity having a fixed surface with areas therein of different, narrower diameters inwardly from said opening, said surface engaging the object being measured;
- a sensor for detecting an axial distance moved by said receiver;
- transport means for moving said object a fixed predetermined distance;
- and
- said transport means moving said receiver axially through contact with said object within said fixed predetermined distance.
A process for measuring a diameter of an object, said process comprising steps of:
- providing an axially movable receiver for receiving the object to be measured, the receiver having an end opening and a cavity formed therein by a surface of different diameters inwardly from the opening;
- inserting the object into the receiver through the end opening;
- moving the object a fixed predetermined overall distance;
- moving the receiver axially by contact with the object within the fixed predetermined overall distance;
- evaluating an axial distance moved by the receiver from moving the object the fixed distance;
- and
- determining acceptability of the object with consideration for the axial distance moved by the receiver.
Dependencies are inferred from the claim text.