Portable compact threading machine

Patent metadata

Field	Value
Publication number	US-9796033-B2
Application number	US-201615157785-A
Country	US
Kind code	B2
Filing date	May 18, 2016
Priority date	Sep 6, 2011
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A powered threading machine is described. The threading machine is compact and portable. The threading machine includes a tube frame having a rearward wheel assembly and an extendable handle at the front of the machine. A particular sump configuration is used to prevent loss of cutting oil during operation and transport of the machine.

First claim

What is claimed:

1. A threading machine comprising:
a frame defining a front portion and a rear portion;
a powered assembly for rotating a workpiece, the powered assembly including (i) an electric motor; (ii) holding provisions to hold a workpiece, and (iii) a drive assembly for transferring rotary power from the motor to the holding provisions, the powered assembly being supported by the frame;
one or more wheels rotatably engaged proximate the rear portion of the frame;
an oil sump for retaining cutting oil, the oil sump defining an open upwardly directed face;
at least one transport sump compartment for retaining cutting oil, the transport sump compartment including a top wall enclosing the transport sump;
wherein the oil sump and the at least one transport sump compartment are in fluid communication with each other, the at least one transport sump compartment disposed rearwardly of the oil sump.

2. The threading machine of claim 1 further comprising:
a normal use quantity of cutting oil contained in at least one of the oil sump and the transport sump compartment;
wherein the threading machine is positionable between (i) an operational position, and (ii) an inclined storage position, and upon positioning the threading machine in the inclined storage position, at least substantially all of the cutting oil is contained in the transport sump compartment.

3. The threading machine of claim 2 wherein the threading machine is further positionable to (iii) an inclined transport position, and upon positioning the threading machine in the inclined transport position, at least substantially all of the cutting oil is contained in the transport sump compartment.

4. The threading machine of claim 1 wherein the volume of the transport sump compartment is at least equal to or greater than the volume of the oil sump.

5. The threading machine of claim 1 wherein the electric motor is an induction motor.

6. The threading machine of claim 1 wherein the electric motor is a universal or series motor.

7. A compact portable threading machine positionable between an operational position and an inclined transport position, the machine comprising:
a frame defining a front portion and a rear portion;
a powered assembly for rotating a workpiece, the powered assembly including (i) an electric motor, (ii) holding provisions to hold a workpiece, and (iii) a drive assembly for transferring rotary power from the motor to the holding provisions;
an oil sump assembly for retaining cutting oil and including a main sump compartment which retains at least a portion of the cutting oil when the machine is in the operational position, and at least one transport sump compartment which retains substantially all of the cutting oil when the machine is in the transport position, wherein the transport sump compartment includes a top wall that encloses the transport sump compartment and the transport sump compartment is disposed rearwardly of the main sump compartment.

8. The compact portable threading machine of claim 7 wherein the electric motor is disposed immediately adjacent to at least one of (i) the main sump compartment and (ii) the at least one transport sump compartment.

9. The compact portable threading machine of claim 7 further comprising:
one or more wheels rotatably engaged to the frame.

10. The compact portable threading machine of claim 9 wherein the one or more wheels are engaged to the frame such that when the machine is in the operational position the one or more wheels do not contact the floor.

11. The compact portable threading machine of claim 10 wherein the one or more wheels are engaged to the frame such that when the machine is in the transport position, the wheels contact the floor.

12. The compact portable threading machine of claim 7 wherein the machine is further positionable to an inclined storage position.

13. The compact portable threading machine of claim 12 wherein the one or more wheels are engaged to the frame such that when the machine is in the storage position, the wheels contact the floor.

14. The compact portable threading machine of claim 7 wherein the electric motor is an induction motor.

15. The compact portable threading machine of claim 7 wherein the electric motor is a universal or series motor.

16. A compact portable threading machine comprising:
an extendable frame assembly including a first frame section and a pivotally attached second frame section, the first frame section including a pair of wheels and the second frame section including a pair of handles;
a powered assembly for rotating a workpiece, the powered assembly including (i) an electric motor, (ii) holding provisions for holding a workpiece, and (iii) a drive assembly for transferring rotary power from the motor to the holding provisions, the powered assembly supported by the extendable frame assembly;
a multi-compartment sump system including (i) a main sump portion having an open upwardly directed face, and (ii) at least one transport sump disposed rearwardly of the main sump portion, the transport sump portion having a top wall enclosing the transport sump portion;
wherein the machine is positionable between (i) an operational position and (ii) an inclined transport position.

17. The compact portable threading machine of claim 16 wherein the electric motor is an induction motor.

18. The compact portable threading machine of claim 16 wherein the electric motor is a universal or series motor.

Assignees

• Kundracik Richard M
• Chartier Glen R
• Zhou Qi
• Ridge Tool Co

Inventors

• Kundracik Richard M
• Chartier Glen R
• Zhou Qi

Classifications

• B23G1/52

  for operating on pipes or tubes · CPC title

• B23G2240/12

  Means for cooling or lubrication · CPC title

• B23G1/24 Primary

  portable · CPC title

• Y10T82/22

  Portable lathe for pipe turning · CPC title

• B23G2240/40

  Threading equipment having an integrally incorporated driving motor · CPC title