Patent US3985386A successfully refreshed from Google Patents.
US3985386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle roll-over protective structure
Assignee: Deere and Co
•
Filing: 1975-09-15
•
Granted: 1976-10-12
•
Expires: 1995-09-15
Abstract
Abstract A vehicle roll-over protective structure includes four Y-shaped metal plates, formed to generally tripodal configurations, and welded at two legs of the three legs to the legs of two other similar tripodal plates to form an open bottom, box-like framework. The framework is fastened by its unwelded legs to a vehicle chassis which closes the bottom of the framework to form the roll-over protective structure.
Inventors
- 👤 Terrill Wayne Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:03
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/13; B60R21/131
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
96 words
A roll-over protective structure for a vehicle having longitudinally extending frame means supported by wheel means, comprising: a plurality of tripodal members each having an upright leg bifurcated at the upper end into a right and left leg, and each tripodal member rigidly connected at its right leg to the left leg of a first adjacent tripodal member and at its left leg to the right leg of a second adjacent tripodal member, and said tripodal members having means at the lower ends of the upright legs for mounting the tripodal members on the frame means.
Claim 2
Dependent Claim
96 words
A roll-over protective structure for a vehicle having longitudinally extending frame means supported by wheel means, comprising: a plurality of tripodal members each having an upright leg bifurcated at the upper end into a right and left leg, and each tripodal member rigidly connected at its right leg to the left leg of a first adjacent tripodal member and at its left leg to the right leg of a second adjacent tripodal member, and said tripodal members having means at the lower ends of the upright legs for mounting the tripodal members on the frame means.
Claim 3
Dependent Claim
126 words
The roll-over protective structure as claimed in claim 1 wherein the means for mounting includes an inverted lower roll-over protective structure having a plurality of lower tripodal members, each lower tripodal member having an upright leg rigidly connected to an upright leg of a corresponding one of the first mentioned tripodal members and bifurcated at the lower end into a right and left leg, each lower tripodal member rigidly connected at its right leg to the left leg of a first adjacent lower tripodal member and at its left leg to the right leg of a second adjacent lower tripodal member, and said lower tripodal members having means at the lower ends of the upright legs for securing the lower tripodal members to the frame means.
Claim 4
Dependent Claim
32 words
The roll-over protective structure as claimed in claim 1 wherein the upright leg of each tripodal members has a varying section modulus from the bifurcation down to the bottom of the leg.
Claim 5
Dependent Claim
33 words
The roll-over protective structure as claimed in claim 3 wherein the upright leg of each tripodal member has a decreasing section modulus from the bifurcation down to the bottom end of the leg.
Claim 6
Dependent Claim
22 words
The roll-over protective structure as claimed in claim 4 wherein the legs of the tripodal members are of open section cross section.
Claim 7
Dependent Claim
18 words
The roll-over protective structure as claimed in claim 5 wherein the open section is a U-channel cross section.
Claim 8
Dependent Claim
19 words
The roll-over protective structure as claimed in claim 5 wherein the open section is a right angle cross section.
Claim 9
Dependent Claim
108 words
A roll-over protective structure for a vehicle having longitudinally extending frame means supported by wheel means, comprising: four tripodal members each having an upright leg bifurcated at the upper end into a left and right leg, and each tripodal member rigidly connected at the end of its right leg to the left leg of a first adjacent tripodal member and at the end of its left leg to the right leg of a second adjacent tripodal member to form an open bottom, box-type framework; and said upright legs having means at the lower end for mounting the framework on the frame means to form the roll-over protective structure.
Claim 10
Dependent Claim
108 words
A roll-over protective structure for a vehicle having longitudinally extending frame means supported by wheel means, comprising: four tripodal members each having an upright leg bifurcated at the upper end into a left and right leg, and each tripodal member rigidly connected at the end of its right leg to the left leg of a first adjacent tripodal member and at the end of its left leg to the right leg of a second adjacent tripodal member to form an open bottom, box-type framework; and said upright legs having means at the lower end for mounting the framework on the frame means to form the roll-over protective structure.
Claim 11
Dependent Claim
121 words
The roll-over protective structure as claimed in claim 8 wherein the means for mounting includes an inverted lower roll-over protective structure having four lower tripodal members each having an upright leg rigidly connected to an upright leg of a corresponding one of the first mentioned tripodal members and bifurcated at the lower end into a left and right leg, each lower tripodal member rigidly connected at its right leg to the left leg of a first adjacent lower tripodal member and at its left leg to the right leg of a second adjacent tripodal member, and said lower tripodal members having means at the lower ends of the upright legs for demountably securing the lower tripodal members to the frame means.
Claim 12
Dependent Claim
32 words
The roll-over protective structure as claimed in claim 8 wherein the upright leg of each tripodal member has a varying section modulus from the bifurcation down to the bottom of the leg.
Claim 13
Dependent Claim
33 words
The roll-over protective structure as claimed in claim 10 wherein the upright leg of each tripodal member has a decreasing section modulus from the bifurcation down to the bottom end of the leg.
Claim 14
Dependent Claim
19 words
The roll-over protective structure as claimed in claim 8 wherein the upright leg of one tripodal member is contoured.
Claim 15
Dependent Claim
22 words
The roll-over protective structure as claimed in claim 8 wherein the legs of the tripodal members are of open section cross section.
Claim 16
Dependent Claim
18 words
The roll-over protective structure as claimed in claim 13 wherein the open section is a U-channel cross section.
Claim 17
Dependent Claim
19 words
The roll-over protective structure as claimed in claim 13 wherein the open section is a right angle cross section.
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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |