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US3841007A Expired / Lapsed US ⏱️ 0.0 years remaining

Detachable cutting edge and tip adapter for loader buckets

Assignee: Caterpillar Inc
•
Filing: 1972-11-24
•
Granted: 1974-10-15
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Expires: 1992-11-24
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Abstract

Abstract A loader bucket has a cutting edge mounted on the bottom surface of a forwardly extending plate thereof. A support member, welded to a top surface of the support plate, has an adapter mounted thereon which carries an earthworking tip extending forwardly of the cutting edge. A releasable bolt extends through the cutting edge, support plate, support member and adapter to detachably mount the cutting edge and adapter on the bucket.

Inventors

  • 👤 R Howarth
  • 👤 E Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 01:55
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/28; E02F9/2808; E02F9/2816

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 195 words
An earthworking implement having a forwardly extended support plate, a cutting edge mounted on a bottom side of said support plate and extending past a forward edge thereof, a support member fixedly secured to a top side of said support plate, an adapter mounted on said support member and having a removably secured earthworking tip thereon extending forwardly of a forward edge of said cutting edge, and said adapter being mounted on said support member by a closely mating tongue formed integrally therwith and a mating groove arrangement formed in said support member extending longitudinally therealong, respectively said adapter having substantial surface portions formed thereon to abut a forward end of said support member for transmitting forces from said tip to said support member and support plate directly, common attaching means constituting a single bolt extending through each of said cutting edge, support plate, support member and adapter detachably mounting said cutting edge and adapter on said support plate and support member, respectively, pin means disposed rearwardly on said tongue and groove arrangement and extending transversely through said support member and said adapter for preventing vertical movement of said adapter relative to said support member.
Claim 2
Dependent Claim 195 words
An earthworking implement having a forwardly extended support plate, a cutting edge mounted on a bottom side of said support plate and extending past a forward edge thereof, a support member fixedly secured to a top side of said support plate, an adapter mounted on said support member and having a removably secured earthworking tip thereon extending forwardly of a forward edge of said cutting edge, and said adapter being mounted on said support member by a closely mating tongue formed integrally therwith and a mating groove arrangement formed in said support member extending longitudinally therealong, respectively said adapter having substantial surface portions formed thereon to abut a forward end of said support member for transmitting forces from said tip to said support member and support plate directly, common attaching means constituting a single bolt extending through each of said cutting edge, support plate, support member and adapter detachably mounting said cutting edge and adapter on said support plate and support member, respectively, pin means disposed rearwardly on said tongue and groove arrangement and extending transversely through said support member and said adapter for preventing vertical movement of said adapter relative to said support member.
Claim 3
Dependent Claim 13 words
The invention of claim 1 wherein said working implement constitutes a loader bucket.
Claim 4
Dependent Claim 16 words
The invention of claim 1 wherein said tongue and groove each has a rectangular cross section.
Claim 5
Dependent Claim 17 words
The invention of claim 1 wherein said tongue and groove each has an inverted T-shaped cross section.

References Cited (Backward Citations)

US1107253A Cited
US1217500A Cited
US1719576A Cited
US1885326A Cited
US1959847A Cited
US1920873A Cited
US1992591A Cited
US2164988A Cited
US2824392A Cited
US3093917A Cited
US3550293A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-14 1978-04-15 1978-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-14 1982-04-15 1982-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-14 1986-04-15 1986-10-15 $7700.00 Window Closed / Lapsed

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