US4347762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planetary gear assembly
Assignee: BorgWarner Automotive Diversified Transmission Products Corp
•
Filing: 1980-06-02
•
Granted: 1982-09-07
•
Expires: 2000-06-02
Abstract
Abstract A planetary gear assembly may be shifted manually between a neutral position and high and low range position for establishing direct drive and reduction ratio drive modes. The assembly is shiftable as an integral unit, and requires only one mesh point when shifting to either of the high or low range positions. The ring and planet gears are unloaded in the direct drive mode, thus avoiding vibration and wear commonly experienced when running locked up.
Inventors
- 👤 John W. Holdeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:37
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/48; F16H3/52; F16H3/54
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
113 words
In combination, first and second rotatable members, and a planetary gear assembly movable as a unit, said planetary gear assembly comprising sun gear means continuously engaged with said first member, planet carrier means continuously engaged with said second member, ring gear means, and planet gear means supported by said planet carrier means in meshing relationship with said sun and ring gear means, said planetary gear assembly being movable to one position wherein said sun gear means is engaged with said second member and said ring gear means is not grounded, and to another position wherein said sun gear means is not engaged with said second member and said ring gear means is grounded.
Claim 2
Dependent Claim
113 words
In combination, first and second rotatable members, and a planetary gear assembly movable as a unit, said planetary gear assembly comprising sun gear means continuously engaged with said first member, planet carrier means continuously engaged with said second member, ring gear means, and planet gear means supported by said planet carrier means in meshing relationship with said sun and ring gear means, said planetary gear assembly being movable to one position wherein said sun gear means is engaged with said second member and said ring gear means is not grounded, and to another position wherein said sun gear means is not engaged with said second member and said ring gear means is grounded.
Claim 3
Dependent Claim
35 words
The invention of claim 1, said planetary gear assembly being movable to a neutral position wherein said sun gear means is not engaged with said second member and said ring gear means is not grounded.
Claim 4
Dependent Claim
15 words
The invention of claim 2, said neutral position being between said one and other positions.
Claim 5
Dependent Claim
20 words
The invention of claim 1, said first and second members being coaxial, and said planetary gear assembly being axially slidable.
Claim 6
Dependent Claim
36 words
The invention of claim 4, said planetary gear assembly being axially slidable to a neutral position wherein said sun gear means is not engaged with said second member and said ring gear means is not grounded.
Claim 7
Dependent Claim
15 words
The invention of claim 5, said neutral position being between said one and other positions.
Claim 8
Dependent Claim
39 words
The invention of claim 4, said ring gear means including a ring gear and an element secured thereto, said element being supported for axial sliding movement with said planet carrier means and rotational movement relative thereto about said axis.
Claim 9
Dependent Claim
23 words
The invention of claim 7, said planet carrier means defining a radially oriented groove, and said element being movably engaged in said groove.
Claim 10
Dependent Claim
63 words
The invention of claim 8, said planet carrier means including a pair of spaced end sections and at least one axially oriented carrier shaft supported thereby, and said planet gear means including at least one planet gear supported on said carrier shaft, one of said end sections being continuously engaged with said second member, and one of said end sections defining said groove.
Claim 11
Dependent Claim
24 words
The invention of claim 9, said element including a horseshoe-shaped plate secured to said ring gear, said plate being slidably received in said groove.
Claim 12
Dependent Claim
17 words
The invention of claims 9 or 10, said sun gear means being oriented between said end sections.
Claim 13
Dependent Claim
113 words
In combination, first and second rotatable members, and a planetary gear assembly slidable as a unit, said planetary gear assembly comprising sun gear means continuously engaged with said first member, planet carrier means continuously engaged with said second member, a ring gear, and at least one planet gear in meshing relationship with said sun gear means and said ring gear, said planetary gear assembly being slidable as a unit to one position wherein one of said means is engaged with both of said members and said ring gear is not grounded, and to another position wherein said one means is not engaged with both of said members and said ring gear is grounded.
Claim 14
Dependent Claim
113 words
In combination, first and second rotatable members, and a planetary gear assembly slidable as a unit, said planetary gear assembly comprising sun gear means continuously engaged with said first member, planet carrier means continuously engaged with said second member, a ring gear, and at least one planet gear in meshing relationship with said sun gear means and said ring gear, said planetary gear assembly being slidable as a unit to one position wherein one of said means is engaged with both of said members and said ring gear is not grounded, and to another position wherein said one means is not engaged with both of said members and said ring gear is grounded.
Claim 15
Dependent Claim
37 words
The invention of claim 12, said planetary gear assembly being slidable as a unit to a neutral position wherein said one means is not engaged with both of said members and said ring gear is not grounded.
Claim 16
Dependent Claim
30 words
The invention of claim 13, said ring gear including an element secured thereto, said element being supported for sliding movement with said planet carrier means and rotational movement relative thereto.
Claim 17
Dependent Claim
67 words
The invention of claim 14, said planet carrier means including a pair of spaced end sections straddling said sun gear means, and at least one carrier shaft, said planet gear being supported on said carrier shaft, one of said end sections being continuously engaged with said second member, one of said end sections defining a radially oriented groove, and said element being movably engaged in said groove.
Claim 18
Dependent Claim
24 words
The invention of claim 15, said element including a horseshoe-shaped plate secured to said ring gear, said plate being slidably received in said groove.
References Cited (Backward Citations)
US1514872A
Cited
CA529737A
Cited
FR375986A
Cited
US1413943A
Cited
US1509498A
Cited
US1611630A
Cited
US1795981A
Cited
US1998891A
Cited
US2194823A
Cited
US2331684A
Cited
US2601151A
Cited
US2592910A
Cited
US2787919A
Cited
US2939343A
Cited
US3477314A
Cited
DE2507799A1
Cited
US4103753A
Cited
US4103753B1
Cited
US4063470A
Cited
US4074591A
Cited
US4189960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |