US3604521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth boring apparatus
Assignee: RhinoAg Inc
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Filing: 1970-03-27
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Granted: 1971-09-14
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Expires: 1990-03-27
Abstract
Abstract An earth boring apparatus for attachment to a tractor rear lift mechanism and power take off (P.T.O.) and having a telescoping boom for pivotally supporting an auger in vertical position throughout the arcuate swinging of the boom about a horizontal arc in coaction with a lifting bail and a stabilizer control link, the driven gear of the auger being connected to P.T.O. by a telescoping drive shaft.
Inventors
- 👤 Johnnie C Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:11
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/087
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
299 words
An earth boring apparatus for attachment to the power take off of a tractor and its rear lift mechanism having a top link and a pair of lower arms including a telescoping boom having an inner member for pivotal connection with the top link of the tractor rear lift mechanism so as to extend rearwardly therefrom and an outer member slidably mounted relative to the inner member, connector means pivotally fastened to and depending from the rear end of the outer telescopic member of the boom, auger means pivotally attached to the connector means in spaced relation to the pivotal fastening of the latter to the outer telescopic member so as to depend vertically from said boom, telescoping drive means extending between and pivotally connected to the auger and tractor power take off shaft, upstanding bail means below said boom and extending transVersely between the pair of lower arms of the tractor rear lift mechanism for pivotal connection to the arms, means for pivotally fastening the upper portion of the bail means to the front end portion of the outer telescopic member, stabilizer means extending longitudinally between said inner telescopic member and bail means, means pivotally attaching the front of the stabilizer means to the front end portion of said inner telescopic member, and means for pivotally and slidably connecting the rear end of said stabilizer means to the intermediate portion of said bail means, said bail and stabilizer means coacting to impart swinging movement to said boom about the horizontal axis of its pivotal connection to the top link of the tractor rear lift mechanism upon pivotal movement of the pair of lower arms of said lift mechanism as well as to retract and elongate said boom and thereby permit said auger means to undergo substantially rectilinear movement.
Claim 2
Dependent Claim
299 words
An earth boring apparatus for attachment to the power take off of a tractor and its rear lift mechanism having a top link and a pair of lower arms including a telescoping boom having an inner member for pivotal connection with the top link of the tractor rear lift mechanism so as to extend rearwardly therefrom and an outer member slidably mounted relative to the inner member, connector means pivotally fastened to and depending from the rear end of the outer telescopic member of the boom, auger means pivotally attached to the connector means in spaced relation to the pivotal fastening of the latter to the outer telescopic member so as to depend vertically from said boom, telescoping drive means extending between and pivotally connected to the auger and tractor power take off shaft, upstanding bail means below said boom and extending transVersely between the pair of lower arms of the tractor rear lift mechanism for pivotal connection to the arms, means for pivotally fastening the upper portion of the bail means to the front end portion of the outer telescopic member, stabilizer means extending longitudinally between said inner telescopic member and bail means, means pivotally attaching the front of the stabilizer means to the front end portion of said inner telescopic member, and means for pivotally and slidably connecting the rear end of said stabilizer means to the intermediate portion of said bail means, said bail and stabilizer means coacting to impart swinging movement to said boom about the horizontal axis of its pivotal connection to the top link of the tractor rear lift mechanism upon pivotal movement of the pair of lower arms of said lift mechanism as well as to retract and elongate said boom and thereby permit said auger means to undergo substantially rectilinear movement.
Claim 3
Dependent Claim
115 words
An earth boring apparatus as defined in claim 1 wherein the upstanding bail means includes a yoke having an upper bright portion and a pair of depending legs, an angular bracket having a lower leg secured to and projecting transversely inward of the lower end of each leg of the yoke and an upstanding leg secured to the bight portion of said yoke, and means for pivotally fastening the lower legs of the angular brackets to the lower arms of the tractor rear lift mechanism, the upstanding leg of each bracket having a slot extending longitudinally thereof for receiving and confining the pivotal and slidable connecting means at the rear end of the stabilizing means.
Claim 4
Dependent Claim
92 words
An earth boring apparatus as defined in claim 1 wherein the upstanding bail means includes a yoke having an upper bight portion and a pair of depending legs, means at the lower portion of each leg of the yoke for pivotal connection to the lower arms of the tractor rear lift mechanism, and upright means secured to and depending from the bight portion of said yoke and having an elongate opening extending longitudinally thereof for receiving and confining the pivotal and slidable connecting means at the rear end of the stabilizer means.
Claim 5
Dependent Claim
74 words
An earth boring apparatus as defined in claim 3 wherein the connector means includes an upright element having its front upper portion pivotally fastened to the rear end of the outer member of the telescoping boom and its rear lower portion to the upper portion of the auger means, the element having a surface for engaging the underside of said boom member to limit forward swinging movement of said auger means toward said boom.
Claim 6
Dependent Claim
57 words
An earth boring apparatus as defined in claim 4 wherein the stabilizer means includes a pair of arms having their front ends pivotally attached to the front end portion of the inner member of the telescoping boom, the rear ends of the arms having separate pivotal and slidable connection with the upright means of the bail means.
Claim 7
Dependent Claim
57 words
An earth boring apparatus as defined in claim 3 wherein the stabilizer means includes a pair of arms having their front ends pivotally attached to the front end portion of the inner member of the telescoping boom, the rear ends of the arms having separate pivotal and slidable connection with the upright means of the bail means.
Claim 8
Dependent Claim
74 words
An earth boring apparatus as defined in claim 6 wherein the connector means includes an upright element having its front upper portion pivotally fastened to the rear end of the outer member of the telescoping boom and its rear lower portion to the upper portion of the auger means, the element having a surface for engaging the underside of said boom member to limit forward swinging movement of said auger means toward said boom.
Claim 9
Dependent Claim
74 words
An earth boring apparatus as defined in claim 1 wherein the connector means includes an upright element having its front upper portion pivotally fastened to the rear end of the outer member of the telescoping boom anD its rear lower portion to the upper portion of the auger means, the element having a surface for engaging the underside of said boom member to limit forward swinging movement of said auger means toward said boom.
Claim 10
Dependent Claim
56 words
An earth boring apparatus as defined in claim 1 wherein the stabilizer means includes a pair of arms having front ends pivotally attached to the front end portion of the inner member of the telescoping boom, the rear ends of the arms having separate pivotal and slidable connection with the intermediate portion of the bail means.
References Cited (Backward Citations)
US2320775A
Cited
US2557637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |