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US4934952A Expired / Lapsed US ⏱️ 0.0 years remaining

Corrosion resistant bonding strap

Assignee: DMC Global Inc
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Filing: 1989-03-28
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Granted: 1990-06-19
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Expires: 2009-03-28
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Abstract

Abstract A bonding and electrical grounding assembly for interconnecting dissimilar metallic components, especially in a corrosive environment, which includes a flexible first metal strap having secured to each of its ends a first metal lug for mechanical fastening to a boss which may be welded to one of the major components being bonded. The bosses are each bimetallic, the portion of the boss which is in contact with the lug being constructed of the first metal. The other portion of the boss which is to be welded to the major component is constructed of a second metal, that is the same metal as that of the component. The two dissimilar metals of each boss are directly bonded together by explosive cladding, roll-bonding, friction welding or any process which renders the bimetallic interface impervious to corrosion.

Inventors

  • 👤 John G. Banker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:41
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; H01R4/64

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 90 words
A bonding and electrical grounding assembly comprising in combination: a flexible braided elongated strap made of a first metal; a pair of lugs made of said first metal metallurgically joined to the respective ends of the strap; at least one boss member comprising first and second bimetallic portions metallurgically bonded together where the first portion is of said first metal and the second portion is of a second metal; and fastener means of said first metal interconnecting a said lug and only the first portion of a respective said boss.
Claim 2
Dependent Claim 90 words
A bonding and electrical grounding assembly comprising in combination: a flexible braided elongated strap made of a first metal; a pair of lugs made of said first metal metallurgically joined to the respective ends of the strap; at least one boss member comprising first and second bimetallic portions metallurgically bonded together where the first portion is of said first metal and the second portion is of a second metal; and fastener means of said first metal interconnecting a said lug and only the first portion of a respective said boss.
Claim 3
Dependent Claim 18 words
The combination of claim 1 where the bimetallic bond of the boss members is produced by explosive welding.
Claim 4
Dependent Claim 18 words
The combination of claim 1 where the bimetallic bond of the boss members is produced by roll bonding.
Claim 5
Dependent Claim 18 words
The combination of claim 1 where the bimetallic bond of the boss members is produced by friction welding.
Claim 6
Dependent Claim 13 words
The apparatus of claim 1 where the first metal is a coppernickel alloy.
Claim 7
Dependent Claim 11 words
The apparatus of claim 1 where the first metal is titanium.
Claim 8
Dependent Claim 15 words
The apparatus of claim 1 where the first metal is an exotic austenitic stainless steel.
Claim 9
Dependent Claim 23 words
The combination of claim 1 where the first and second portions of a boss are upper and lower segments of the boss respectively.
Claim 10
Dependent Claim 17 words
The construction of claim 1 where the first and second portions of a boss are coaxial cylinders.
Claim 11
Dependent Claim 31 words
The construction of claim 1 where the second metal is aluminum and further including a layer of titanium between the first metal portion of the boss and the second metal portion.

References Cited (Backward Citations)

US3360848A Cited
JPS5434083A Cited
US4485960A Cited
US4765530A Cited
US4600332A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-06-18 1993-12-18 1994-06-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-06-18 1997-12-18 1998-06-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-06-18 2001-12-18 2002-06-19 $7700.00 Window Closed / Lapsed

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