Patent US4903884A successfully refreshed from Google Patents.
US4903884A
Expired / Lapsed
US
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Soldering apparatus
Assignee: Royel International Pty Ltd
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Filing: 1988-12-14
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Granted: 1990-02-27
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Expires: 2008-12-14
Abstract
Abstract Soldering apparatus of the kind having a replaceable tip element including a soldering face and having a frame portion and a tip retaining portion adapted to retain the tip element in heat conducting relationship with the frame portion. The soldering apparatus is characterized in that the frame portion incorporates a contact assisting formation adapted to embed itself at least partly into the tip element remote from the soldering face to thereby reduce electrical resistance between the tip element and frame.
Inventors
- 👤 Lindsay I. Royston
- 👤 Ian M. Eastham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:34
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0338; B23K3/0369
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
254 words
Soldering apparatus of the kind having a replaceable tip element, the tip element being elongate and having a first end which defines a soldering face and a second end remote from the first end, the apparatus further comprising an elongate, tubular frame assembly in which the tip element is held such that the first end of the tip element projects beyond an end of said assembly; the frame assembly including: (a) an inner frame portion which defines an elongate bore in which the second end of the tip element is longitudinally received; (b) an outer frame retaining portion received on the inner frame portion, and adapted to retain the tip element in heat conducting relationship with the inner frame portion; and (c) a contact assisting member within the bore of said inner frame portion, said member having a body portion which provides a relatively low electrical resistance between said contact assisting member and said inner frame portion, and a contact assisting formation on said body portion adapted to embed itself at least partially into the tip element adjacent said second end; wherein said outer retaining portion is retained in assembly with the inner frame portion such that the tip element is retained in heat conducting relationship with the inner frame portion and such that said contact formation of the contact assisting member is caused to embed itself at least partially within said tip element adjacent said second end to promote a relatively low electrical resistance between said tip element and said inner frame portion.
Claim 2
Dependent Claim
254 words
Soldering apparatus of the kind having a replaceable tip element, the tip element being elongate and having a first end which defines a soldering face and a second end remote from the first end, the apparatus further comprising an elongate, tubular frame assembly in which the tip element is held such that the first end of the tip element projects beyond an end of said assembly; the frame assembly including: (a) an inner frame portion which defines an elongate bore in which the second end of the tip element is longitudinally received; (b) an outer frame retaining portion received on the inner frame portion, and adapted to retain the tip element in heat conducting relationship with the inner frame portion; and (c) a contact assisting member within the bore of said inner frame portion, said member having a body portion which provides a relatively low electrical resistance between said contact assisting member and said inner frame portion, and a contact assisting formation on said body portion adapted to embed itself at least partially into the tip element adjacent said second end; wherein said outer retaining portion is retained in assembly with the inner frame portion such that the tip element is retained in heat conducting relationship with the inner frame portion and such that said contact formation of the contact assisting member is caused to embed itself at least partially within said tip element adjacent said second end to promote a relatively low electrical resistance between said tip element and said inner frame portion.
Claim 3
Dependent Claim
31 words
Soldering apparatus according to claim 1 wherein said tip element comprises a core and a protective coating applied to said core, said contact assisting formation being adapted to penetrate said coating.
Claim 4
Dependent Claim
15 words
Soldering apparatus according to claim 1 wherein said contact assisting formation comprises a conical spike.
Claim 5
Dependent Claim
39 words
Soldering apparatus as claimed in claim 1 wherein said tip element includes an elongate shank and wherein said formation is adapted to embed itself in a rear face of said shank at said second end of said tip element.
Claim 6
Dependent Claim
21 words
Soldering apparatus as claimed in claim 1 wherein said contact assisting formation is provided on an insert held in said frame.
Claim 7
Dependent Claim
16 words
Soldering apparatus as claimed in claim 5 wherein said insert comprises a substantially cylindrical body portion.
Claim 8
Dependent Claim
20 words
Soldering apparatus as claimed in claim 6 wherein said contact assisting formation comprises a conical spike formed with said insert.
Claim 9
Dependent Claim
33 words
Soldering apparatus as claimed in claim 6 wherein said insert includes a fluted region around its body portion circumference adapted to provide a tight interference fit between said insert and said frame portion.
Claim 10
Dependent Claim
121 words
Soldering apparatus of the kind having a replaceable tip element including a soldering face, and having a frame portion and a tip retaining portion adapted to retain said tip element in heat conducting relationship with said frame portion; characterized in that said frame portion incorporates a contact assisting formation adapted to embed itself at least partly into the tip element remote from said soldering face to promote a relatively low electrical resistance between said tip element and said frame; wherein said contact assisting formation is provided on an insert held in said frame, and said insert comprises a substantially cylindrical element and a fluted region around its circumstance adapted to provide a tight interference fit between said insert and said frame.
Claim 11
Dependent Claim
121 words
Soldering apparatus of the kind having a replaceable tip element including a soldering face, and having a frame portion and a tip retaining portion adapted to retain said tip element in heat conducting relationship with said frame portion; characterized in that said frame portion incorporates a contact assisting formation adapted to embed itself at least partly into the tip element remote from said soldering face to promote a relatively low electrical resistance between said tip element and said frame; wherein said contact assisting formation is provided on an insert held in said frame, and said insert comprises a substantially cylindrical element and a fluted region around its circumstance adapted to provide a tight interference fit between said insert and said frame.
References Cited (Backward Citations)
DE520814C
Cited
US3111101A
Cited
US3236932A
Cited
US3435126A
Cited
US3904932A
Cited
US4086465A
Cited
US4322773A
Cited
US4473714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |