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US 5,666,738 AGranted
Calibration and measuring tool
OwnerLeif Nybroinventor
Life of this patent
Estimating the term…
Abstract
A rod shaped supporting part has a plurality of plates slid thereon. Each plate has at least one protrusion protruding radially outwardly. The plates are axially separated by spacers. The protrusions have a precisely machined reference surface and the protrusions are arranged so that they form a helical path on the supporting part. The plates and spacers are held to the supporting parts by end nuts. At least two of the protrusions are protruding in the same direction so that a predetermined distance is defined between the protrusions which may be used in measuring applications. The supporting part is rotatably supported by a supporting device.
Claims11
A calibration and measuring tool comprising:
- a rod shaped supporting part having threaded opposite ends;
- a first end nut screwed onto one end of the supporting part;
- a first support spacer operatively engaging the supporting part and immediately adjacent the first end nut;
- a first plate having an opening defined therethrough to be slid on the supporting part so that the first plate is immediately adjacent the first support spacer, the first plate having four projections attached thereto, the projections projecting radially outwardly in a first, second, third and fourth direction;
- a first spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the first plate;
- a second plate having an opening defined therethrough to be slid on the supporting part so that the second plate is immediately adjacent the first spacer sleeve, the second plate having one projection attached thereto, the projection projecting radially outwardly in the first direction;
- a second spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the second plate;
- a third plate having an opening defined therethrough to be slid on the supporting part so that the third plate is immediately adjacent the second spacer sleeve, the third plate having one projection attached thereto, the projection projecting radially outwardly in the second direction that is perpendicular to the first direction;
- a third spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the third plate;
- a fourth plate having an opening defined therethrough to be slid on the supporting part so that the fourth plate is immediately adjacent the third spacer sleeve, the fourth plate having one projection attached thereto, the projection projecting radially outwardly in a third direction that is perpendicular to the second direction;
- a fourth spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the fourth plate;
- a fifth plate having an opening defined therethrough to be slid on the supporting part so that the fifth plate is immediately adjacent the fourth spacer sleeve, the fifth plate having one projection attached thereto, the projection projecting radially outwardly in a fourth direction that is perpendicular to the third direction;
- a fifth spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the fifth plate;
- a sixth plate having an opening defined therethrough to be slid on the supporting part so that the sixth plate is immediately adjacent the fifth spacer sleeve, the sixth plate having one projection attached thereto, the projection projecting radially outwardly in a first direction that is parallel to the first direction of the projection of the second plate;
- a sixth spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the sixth plate;
- a seventh plate having an opening defined therethrough to be slid on the supporting part so that the seventh plate is immediately adjacent the sixth spacer sleeve, the seventh plate having one projection attached thereto, the projection projecting radially outwardly in a second direction that is parallel to second direction of the projection of the third plate;
- a seventh spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the seventh plate;
- an eighth plate having an opening defined therethrough to be slid on the supporting part so that the eighth plate is immediately adjacent the seventh spacer sleeve, the eighth plate having one projection attached thereto, the projection projecting radially outwardly in a third direction that is parallel to the third direction of the projection of the fourth plate;
- an eighth spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the eighth plate;
- a ninth plate having an opening defined therethrough to be slid on the supporting part so that the ninth plate is immediately adjacent the eighth spacer sleeve, the ninth plate having one projection attached thereto, the projection projecting radially outwardly in a fourth direction that is parallel to the fourth direction of the projection of the fifth plate;
- a ninth spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the ninth plate;
- a tenth plate having an opening defined therethrough to be slid on the supporting part so that the tenth plate is immediately adjacent the ninth spacer sleeve, the tenth plate having one projection attached thereto, the projection projecting radially outwardly in an first direction that is parallel to first direction of the projection of the sixth plate;
- a tenth spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the tenth plate;
- an eleventh plate having an opening defined therethrough to be slid on the supporting part so that the eleventh plate is immediately adjacent the tenth spacer sleeve, the eleventh plate having one projection attached thereto, the projection projecting radially outwardly in an second direction that is parallel to the second direction of the projection of the seventh plate;
- an eleventh spacer sleeve having an opening defined therethrough to be slid on the supporting part and immediately adjacent the eleventh plate;
- a twelfth plate having an opening defined therethrough to be slid on the supporting part so that the twelfth plate is immediately adjacent the eleventh spacer sleeve, the twelfth plate having one projection attached thereto, the projection projecting radially outwardly in a third direction that is parallel to the third direction of the projection of the eighth plate;
- a second support spacer operatively engaging the supporting part and immediately adjacent the twelfth plate;
- a second end nut screwed onto the end of the supporting part that is opposite the end attached to the first end nut;
- each projection having a precisely machined reference surface;
- and
- a support bracket adapted to receive the first and second ends of the supporting part to rotatably support the supporting part.
28 more elements
A measuring tool comprising:
- an elongate member having a first end and a second opposite end;
- a first plate disposed on the elongate member adjacent the first end thereof, the plate having projections projecting in a first, second, third and fourth direction, each projection having a smooth surface facing away from the first end;
- a second plate disposed on the elongate member axially spaced from the first plate, the second plate having a projection projecting in the first direction;
- a third plate disposed on the elongate member axially spaced from the second plate, the third plate having a projection projecting in the second direction that is perpendicular to the first direction;
- a fourth plate disposed on the elongate member axially spaced from the third plate, the fourth plate having a projection projecting in the third direction that is perpendicular to the second direction;
- a fifth plate disposed on the elongate member axially spaced from the fourth plate, the fifth plate having a projection projecting in the fourth direction that is perpendicular to the third direction, the fifth plate being adjacent the second end of the elongate member;
- the projections of the second, third, fourth and fifth plate each having a smooth surface facing the smooth surfaces of the first plate;
- and
- a support bracket adapted to receive the first and second end of the elongate member to rotatably support the elongate member.
6 more elements
Dependencies are inferred from the claim text.