U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Soldering iron with flat blade heating element

Patent 4431903 Issued on February 14, 1984. Estimated Expiration Date: Icon_subject November 9, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1128102

1363473

2735923

3048687

3105135

3121781

3287541

3646577

3800122

Electric soldering iron Patent #: 4086465
Issued on: 04/25/1978
Inventor: Sylvester

Inventor

Assignee

Application

No. 06/319598 filed on 11/09/1981

US Classes:

219/238, Detachable tip219/227, Hand-manipulative219/236, Coil or loop-type heating element219/533, Portable (e.g., with handle)228/51METALLIC HEAT APPLICATOR (E.G., SOLDERING IRON, ETC.)

Examiners

Primary: Bartis, A.

Attorney, Agent or Firm

International Classes

B23K 3/02 (20060101)
B23K 3/03 (20060101)

Abstract

An electric soldering iron having an elongated handle with an electric heating element attached therein and including a removable tip member located to receive heat from the heating element and a holding member to hold the tip relative to the heating element is improved by forming said heating element as an elongated flat blade heating element having a elongated flat planar heated surface. The heating element is so located in the handle to extend outwardly from the handle. The tip member includes a body having an elongated flat planar heat transfer surface which fits against the planar heated surface of the heating element and receives heat therefrom. The tip member further includes an operative tip extending away from the remainder of the tip member. A retaining tube detachably secured at one end to the handle fits over the heating element and tip member and except for its operative tip and maintains them in a fixed relationship with respect to each other and to the handle. A bowed spring located in the retaining tube biases the planar surfaces of the heating element and tip member into intimate contact with each other. The operative tip is exposed out of the other end of the retaining tube in position for soldering.

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