US3749180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer attachment for tractors
Assignee: HCC Inc
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Filing: 1971-12-27
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Granted: 1973-07-31
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Expires: 1991-12-27
Abstract
Abstract A bulldozer blade and frame for a tractor vehicle is provided. The frame has a forward vertically pivotal portion. This portion forward mounts the blade on a single pivot about a vertical axis. Removable locking pins permit fixing the blade and forward frame structure in desired relative position. Means are provided to remotely position the blade.
Inventors
- 👤 J Coontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:22
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/04; E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7622; E02F3/80; E02F3/815; E02F3/8157
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
245 words
Bulldozer means comprising: a. frame support means having mounting means adapted to mount said bulldozer means on a vehicle, b. other mounting means with said support means, pivotable about a horizontal axis, c. earthworking means moUnted on said last-named mounting means by a single pivot to be pivotable about an upright axis in an upright plane transverse to said frame support means, d. locking means engageable with said last-named mounting means and said earthworking means to fix the relative position of said mounting means and said earthworking means, e. means to raise and lower said last-named mounting means, f. said frame support means has a pair of elongated members horizontally mountable under a vehicle with an upright portion on one end portion joined by a transverse member on their upper portion, and means to mount said elongated members with said vehicle, g. said last-named mounting means is attached to the forward end portion of said elongated members, and has said earthworking means pivot on the outer end portion thereof, h. said earthworking means has means to attach same to said earthworking means pivot, and i. said means to raise and lower said last-named mounting means is an operator connected between said mounting means and said transverse member and extended forwardly of said horizontal axis to rotate said mounting means about said horizontal axis, said bulldozer means being adapted to be mounted on a vehicle and have the earthworking means transversely and vertically adjustable relative thereto.
Claim 2
Dependent Claim
245 words
Bulldozer means comprising: a. frame support means having mounting means adapted to mount said bulldozer means on a vehicle, b. other mounting means with said support means, pivotable about a horizontal axis, c. earthworking means moUnted on said last-named mounting means by a single pivot to be pivotable about an upright axis in an upright plane transverse to said frame support means, d. locking means engageable with said last-named mounting means and said earthworking means to fix the relative position of said mounting means and said earthworking means, e. means to raise and lower said last-named mounting means, f. said frame support means has a pair of elongated members horizontally mountable under a vehicle with an upright portion on one end portion joined by a transverse member on their upper portion, and means to mount said elongated members with said vehicle, g. said last-named mounting means is attached to the forward end portion of said elongated members, and has said earthworking means pivot on the outer end portion thereof, h. said earthworking means has means to attach same to said earthworking means pivot, and i. said means to raise and lower said last-named mounting means is an operator connected between said mounting means and said transverse member and extended forwardly of said horizontal axis to rotate said mounting means about said horizontal axis, said bulldozer means being adapted to be mounted on a vehicle and have the earthworking means transversely and vertically adjustable relative thereto.
Claim 3
Dependent Claim
107 words
The bulldozer means as described in claim 1, wherein: a. said means to mount said elongated members has a multi-aperture flange member secured to the forward end portion of said elongated members and a rear mount member extended from a rear portion of said elongated members and adjustably connected thereto, b. said means to attach said earthworking means is a flange portion extending from said earthworking means to engage said last-named mounting means to pivot said earthworking means about a vertical axis relative to said mounting means, and c. said rear portion of said elongated members are joined together and have said rear mount member mounted therewith.
Claim 4
Dependent Claim
29 words
The bulldozer means as described in claim 2, wherein: a. said means to raise and lower said last-named mounting means is a hydraulic cylinder, operable by a powering means.
Claim 5
Dependent Claim
28 words
The bulldozer means as described in claim 2, wherein: a. said means to raise and lower said last-named mounting means is a turnbuckle means operable by hand action.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |