Method and apparatus for welding

US9884385B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9884385-B2
Application numberUS-201313916676-A
CountryUS
Kind codeB2
Filing dateJun 13, 2013
Priority dateMar 31, 2003
Publication dateFeb 6, 2018
Grant dateFeb 6, 2018

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode.

First claim

Opening claim text (preview).

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A method of repeatedly starting a pulse welding process for aluminum wire, wherein the wire passes through a contact tip, comprising: starting the process, establishing a pseudo-equilibrium arc with aluminum wire, and repeating at least 70,000 times without changing the contact tip.

Assignees

Inventors

Classifications

  • Arrangements or circuits for arc welding with pulsed current or voltage · CPC title

  • Monitoring or automatic control of welding parameters · CPC title

  • B23K9/067Primary

    Starting the arc · CPC title

  • Stabilising the arc · CPC title

  • B23K9/0008Primary

    Welding without shielding means against the influence of the surrounding atmosphere · CPC title

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Frequently asked questions

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What does patent US9884385B2 cover?
A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, inst…
Who is the assignee on this patent?
Holverson Todd E, Uecker James L, Davidson Robert R, and 2 more
What technology area does this patent fall under?
Primary CPC classification B23K9/067. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).