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US 2012/0201617 A1Published application
Tap and die devices
OwnerKen Knechtinventor
Life of this patent
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Abstract
Tap and die devices are provided to repair internal and external threads, respectively. The tap and die devices are provided with components that coaxially align the tap and die to the nut or fitting being repaired. The tap and die devices are easily portable, compact tools that can be used in tight places.
Claims18
A tap device, comprising:
- an elongated tap including a shaft having external cutting threads on one end;
- and
- a body having a bore within which the shaft rotates and a socket opposite from the bore, wherein the center of the socket is coaxially aligned with the longitudinal center of axis of the shaft.
A method for repairing internal threads, comprising:
- placing a tap within a bore of a body having a socket located opposite from the bore, wherein the socket and tap are coaxially aligned;
- placing a nut within the socket;
- and
- rotating the tap to engage cutting threads on the tap with threads on the nut.
1 more element
A die device, comprising:
- a die including internal cutting threads on one end and a bore on the inside at an opposite end from the cutting threads, wherein the center of the bore is coaxially aligned with a center of a diameter of the cutting threads;
- and
- a pilot including a shaft that fits within the bore, wherein the longitudinal center of axis of the pilot is coaxially aligned with the center of the diameter of the cutting threads.
A method for repairing external threads, comprising:
- placing a pilot on the inside of a fitting with external threads, wherein a portion of the pilot extends outward of the fitting, and the longitudinal center of the pilot is coaxially aligned with a center of a diameter of the external threads of the fitting;
- engaging a die with the outward extending portion of the pilot, wherein the longitudinal center of axis of the pilot is coaxially aligned with a center of a bore of the die, and the longitudinal center of axis of the die is coaxially aligned with the center of the diameter of the external threads of the fitting;
- and
- turning the die to advance the die on the threads of the fitting.
1 more element
Dependencies are inferred from the claim text.