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US3899074A Expired / Lapsed US ⏱️ 0.0 years remaining

Brazing washer chain

Assignee: Lucas Milhaupt Inc
•
Filing: 1974-07-01
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Granted: 1975-08-12
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Expires: 1994-07-01
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Abstract

Abstract A chain of flat brazing washers which are fed to a workpiece, a washer being severed from the chain and dropped into an aperture or opening in the workpiece, all being done at a rapid rate. The chain has a notch at each of its sides and at the juncture between the overlapped periphery of the washers. In other words, the washers are formed of flat stock so that their adjacent portions merge or overlap. The notches which extend into the overlap area from each side permit the washers to be severed from one another so that no portion of a severed washer extends beyond its periphery, that is to say there are no projections extending beyond the washer which would prevent it from dropping into a correspondingly shaped opening.

Inventors

  • 👤 William F Lucas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:46
CPC Classifications
B; B65; B65D; B65D69/00; B23; B23P; B23P19/00; B23P19/04; B23P19/08; F; F16; F16B; F16B27/00; F16B43/00; Y; Y10; Y10S; Y10S206/00; Y10S206/82; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 140 words
A flat brazing washer chain comprising a plurality of flat washers integrally formed from a flat stock of brazing material and joined together adjacent their peripheries, each adjacent pair of said washers having adjacent peripheral portions which, if projected, would merge together to define an overlap area, a series of pairs of opposed notches formed in said chain, one notch of each pair being formed in one side of said chain, each of said notches extending into said overlap area, each pair of opposed notches defining therebetween an interconnecting portion between adjacent washers, which interconnecting portion extends through an overlap area to define a cutting zone wherein the overlap area and interconnecting portion coincide, whereby said washers are separable by cutting said interconnecting portion within said cutting zone to thereby prevent any protrusion of a washer beyond its projected periphery.
Claim 2
Dependent Claim 140 words
A flat brazing washer chain comprising a plurality of flat washers integrally formed from a flat stock of brazing material and joined together adjacent their peripheries, each adjacent pair of said washers having adjacent peripheral portions which, if projected, would merge together to define an overlap area, a series of pairs of opposed notches formed in said chain, one notch of each pair being formed in one side of said chain, each of said notches extending into said overlap area, each pair of opposed notches defining therebetween an interconnecting portion between adjacent washers, which interconnecting portion extends through an overlap area to define a cutting zone wherein the overlap area and interconnecting portion coincide, whereby said washers are separable by cutting said interconnecting portion within said cutting zone to thereby prevent any protrusion of a washer beyond its projected periphery.
Claim 3
Dependent Claim 27 words
The chain set forth in claim 1 further characterized in that each of said notches has a flat inner end, which end lies within said overlap area.

References Cited (Backward Citations)

US2716247A Cited
US3137858A Cited
US3285313A Cited
US3270874A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-11 1979-02-10 1979-08-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-11 1983-02-10 1983-08-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-11 1987-02-10 1987-08-12 $7700.00 Window Closed / Lapsed

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