Patent US3915501A successfully refreshed from Google Patents.
US3915501A
Expired / Lapsed
US
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Mounting arrangement for impact rock-breaker
Assignee: Caterpillar Inc
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Filing: 1974-11-22
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Granted: 1975-10-28
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Expires: 1994-11-22
Abstract
Abstract An impact rock breaker includes detachable mounting means and latching means operative to mount the rock breaker on the stick of a backhoe or excavator adjacent the bucket such that the rock breaker can be pivoted between a non-operative position out of the way of the bucket to permit normal operation of the bucket and an operative position latched to the bucket for movement with the bucket for normal operation of the rock breaker.
Inventors
- 👤 Delwin E Cobb
- 👤 Jerry D Fidler
- 👤 Nathan Gutman
- 👤 Richard E Livesay
- 👤 Orrin A Stemler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:49
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/42; E02F3/425; E02F3/30; E02F3/32; E02F3/96; E02F3/962; Y; Y10; Y10S; Y10S37/00; Y10S37/904; Y10S414/00; Y10S414/125
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
107 words
Material-fracturing apparatus for mounting adjacent the bucket of an excavator having a boom and a stick, said apparatus comprising: a housing having a fracturing shank supported by and extending therefrom and means for applying impact blows to said shank for breaking hardened materials; bracket means extending from said housing for pivotal connection to the stick of an excavator adjacent the bucket of said excavator; first latch means for latching said housing means to said bucket for manipulation of said fracturing device into operative position by manipulation of said bucket; and second latch means for latching said housing to said stick to permit free operation of said bucket.
Claim 2
Dependent Claim
107 words
Material-fracturing apparatus for mounting adjacent the bucket of an excavator having a boom and a stick, said apparatus comprising: a housing having a fracturing shank supported by and extending therefrom and means for applying impact blows to said shank for breaking hardened materials; bracket means extending from said housing for pivotal connection to the stick of an excavator adjacent the bucket of said excavator; first latch means for latching said housing means to said bucket for manipulation of said fracturing device into operative position by manipulation of said bucket; and second latch means for latching said housing to said stick to permit free operation of said bucket.
Claim 3
Dependent Claim
22 words
The material-fracturing apparatus of claim 1 wherein the material-fracturing shank is mounted for angular adjustment relative to said bucket while latched thereto.
Claim 4
Dependent Claim
38 words
The material-fRacturing apparatus of claim 2 wherein said bracket means pivotally connects to said stick at the pivotal connection of said bucket thereto so that said housing and said bucket pivots about the same point on said stick.
Claim 5
Dependent Claim
26 words
The material-fracturing apparatus of claim 3 including means for preventing disengagement of said second latch means until said first latch means is latched to said bucket.
Claim 6
Dependent Claim
23 words
The material-fracturing apparatus of claim 4 wherein said bracket means extends from said housing in a direction opposite that of said fracturing shank.
Claim 7
Dependent Claim
38 words
The material-fracturing apparatus of claim 1 wherein said bracket means pivotally connects to said stick at the pivotal connection of said bucket thereto so that said housing and said bucket pivots about the same point on said stick.
Claim 8
Dependent Claim
29 words
The material-fracturing apparatus of claim 6 including means for preventing disengagement of said second latch means from said stick until said first latch means is latched to said bucket.
Claim 9
Dependent Claim
27 words
The material-fracturing apparatus of claim 7 wherein said means for applying impact blows to said shank comprises a machanical impact device driven by a rotary hydraulic motor.
Claim 10
Dependent Claim
59 words
The apparatus of claim 8 wherein said rotary hydraulic motor is detachably secured to said housing and said second latch means is operative to latch said rotary motor to said stick so that said fracturing apparatus can be readily removed from said stick leaving said motor latched to said stick to thereby avoid the removal of hydraulic lines therefrom.
Claim 11
Dependent Claim
23 words
The material-fracturing apparatus of claim 7 wherein said bracket means extends from said housing in a direction opposite that of said fracturing shank.
Claim 12
Dependent Claim
21 words
The material-fracturing device of claim 10 wherein said fracturing shank is mounted for relative angular adjustment about a generally vertical axis.
Claim 13
Dependent Claim
22 words
The material-fracturing apparatus of claim 11 wherein said bracket extends at an angle of approximately 45* from said axis of angular adjustment.
Claim 14
Dependent Claim
27 words
The material-fracturing apparatus of claim 1 wherein said means for applying impact blows to said shank comprises a mechanical impact device driven by a rotary hydraulic motor.
Claim 15
Dependent Claim
43 words
The apparatus of claim 13 wherein said rotary hydraulic motor is detachably secured to said housing and said second latch means is operative to latch said rotary motor to said stick so that said fracturing apparatus can be readily removed from said stick.
Claim 16
Dependent Claim
38 words
The material-fracturing device of claim 1 wherein said housing is pivotally mounted to said bracket for relative angular adjustment about an axis extending at substantially a right angle to the pivotal connection of said housing to said stick.
Claim 17
Dependent Claim
22 words
The material-fracturing apparatus of claim 15 wherein said bracket extends at an angle of approximately 45* from said axis of angular adjustment.
Claim 18
Dependent Claim
117 words
Material-fracturing apparatus for mounting on a support arm adjacent an excavating bucket, said apparatus comprising: a support arm having an excavating bucket pivotally connected to one end thereof; a housing having a fracturing shank supported by and extending therefrom and means for applying impact blows to said shank for breaking hardened materials; bracket means extending from said housing for pivotal connection to the end of said support arm adjacent and forward of said bucket; first latch means for latching said housing means to said bucket for manipulation of said fracturing apparatus into operative position by manipulation of said bucket; and second latch means for latching said housing to said stick to permit free operation of said bucket.
Claim 19
Dependent Claim
117 words
Material-fracturing apparatus for mounting on a support arm adjacent an excavating bucket, said apparatus comprising: a support arm having an excavating bucket pivotally connected to one end thereof; a housing having a fracturing shank supported by and extending therefrom and means for applying impact blows to said shank for breaking hardened materials; bracket means extending from said housing for pivotal connection to the end of said support arm adjacent and forward of said bucket; first latch means for latching said housing means to said bucket for manipulation of said fracturing apparatus into operative position by manipulation of said bucket; and second latch means for latching said housing to said stick to permit free operation of said bucket.
Claim 20
Dependent Claim
22 words
The material-fracturing apparatus of claim 17 wherein the material-fracturing shank is mounted for angular adjustment relative to said bucket while latched thereto.
Claim 21
Dependent Claim
38 words
The material-fracturing apparatus of claim 18 wherein said bracket means pivotally connects to said arm at the pivotal connection of said bucket thereto so that said housing and sAid bucket pivots about the same point on said stick.
Claim 22
Dependent Claim
27 words
The material-fracturing apparatus of claim 19 including means for preventing disengagement of said first latch means until said second latch means is securely latched to said arm.
Claim 23
Dependent Claim
23 words
The material-fracturing apparatus of claim 20 wherein said bracket means extends from said housing in a direction opposite that of said fracturing shank.
Claim 24
Dependent Claim
30 words
The material-fracturing device of claim 18 wherein said relative angular adjustment is about an axis extending at substantially right angles to the pivotal connection of said housing to said arm.
Claim 25
Dependent Claim
22 words
The material-fracturing device of claim 22 wherein said bracket extends at an angle of approximately 45* from said axis of angular adjustment.
Claim 26
Dependent Claim
25 words
The material-fracturing apparatus of claim 22 wherein said angle of adjustment is up to 40* to either side of a line defining zero adjustment thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |