Patent US3942271A successfully refreshed from Google Patents.
US3942271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backhoe attachment
Assignee: Individual
•
Filing: 1974-07-08
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Granted: 1976-03-09
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Expires: 1994-07-08
Abstract
Abstract A housing having a V-shaped cross-section is adapted to be positioned over the teeth of a backhoe bucket. An earth moving blade is secured to the lowermost portion of the housing. Lugs are secured to the inside surfaces of adjoining teeth of the backhoe bucket. A retaining bar is inserted through apertures formed in the front and back faces of the housing to engage the lugs between the teeth and thereby retain the receptacle on the tooth portion of the backhoe to permit earth moving and grading operations.
Inventors
- 👤 Anthony Joseph George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:02
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7088
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
210 words
An earth moving attachment and connection to an earth moving implement having teeth extending along substantially parallel longitudinal axes from the lower end of a bucket, said attachment and connection comprising: a housing having a compartment with an opening and an enclosed end portion formed by two walls converging to form a blade attaching portion, said opening being of suitable size and shape to permit insertion of bucket teeth into said opening, said enclosed end portion of the compartment limiting the insertion of said teeth, and a blade secured to said blade attaching portion of said housing near the enclosed end portion of said compartment; at least two retaining lugs each secured to adjacent sides of two adjacent longitudinally extending teeth and convergently tapered toward the bucket's lower end so that the rear ends of the lugs form an abutment in the open spacing between the adjacent teeth; said housing having at least one aperture in a wall of said compartment for alignment with said abutment; the attachment connection comprising a removable retaining bar passing through said compartment aperture and behind said abutment, and holding means to hold said bar substantially perpendicular to said abutment, and said compartment aperture, thereby preventing longitudinal movement of said attachment relative to said teeth.
Claim 2
Dependent Claim
210 words
An earth moving attachment and connection to an earth moving implement having teeth extending along substantially parallel longitudinal axes from the lower end of a bucket, said attachment and connection comprising: a housing having a compartment with an opening and an enclosed end portion formed by two walls converging to form a blade attaching portion, said opening being of suitable size and shape to permit insertion of bucket teeth into said opening, said enclosed end portion of the compartment limiting the insertion of said teeth, and a blade secured to said blade attaching portion of said housing near the enclosed end portion of said compartment; at least two retaining lugs each secured to adjacent sides of two adjacent longitudinally extending teeth and convergently tapered toward the bucket's lower end so that the rear ends of the lugs form an abutment in the open spacing between the adjacent teeth; said housing having at least one aperture in a wall of said compartment for alignment with said abutment; the attachment connection comprising a removable retaining bar passing through said compartment aperture and behind said abutment, and holding means to hold said bar substantially perpendicular to said abutment, and said compartment aperture, thereby preventing longitudinal movement of said attachment relative to said teeth.
Claim 3
Dependent Claim
39 words
An apparatus according to claim 1 wherein said retaining bar has one end enlarged to prevent its passage through said aperture in said compartment, said holding means comprising a spring clip attachable to the other end of said bar.
Claim 4
Dependent Claim
17 words
An apparatus according to claim 1 wherein said retaining bar and said aperture are rectangular in cross-section.
Claim 5
Dependent Claim
28 words
An apparatus according to claim 1 wherein said teeth of said bucket are V-shaped in longitudinal cross-section, and said compartment conforms generally to the configuration of said teeth.
Claim 6
Dependent Claim
12 words
An apparatus according to claim 1 wherein said blade is longitudinally adjustable.
Claim 7
Dependent Claim
46 words
Apparatus according to claim 5 wherein said housing has in said blade attaching portion additional apertures, said blade has apertures alignable with said additional apertures, and additional retaining bars to engage said additional apertures and said blade apertures, thereby to secure said blade to said housing.
Claim 8
Dependent Claim
20 words
An apparatus according to claim 6 wherein said blade attaching portion has a longitudinal slot to accommodate said adjustable blade.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |