US3924480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant horsepower variable speed reversing transmission
Assignee: Diamond Seven Inc
•
Filing: 1974-09-11
•
Granted: 1975-12-09
•
Expires: 1994-09-11
Abstract
Abstract A variable speed transmission uses bevel gears to achieve continuity in horsepower output in either forward or reverse. Several embodiments are shown. In the preferred embodiment, the gears are arranged so that variation in the speed of the input gear in one direction determines both the speed and the direction of rotation of the output shaft.
Inventors
- 👤 Joseph Carapellucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:58
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H37/0846; F16H2037/088
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
228 words
A constant horsepower variable speed reversing transmission, comprising: a. an input shaft; b. an output shaft spaced from said input shaft; c. a variable speed transmission having: a first portion; a second portion; and connecting means engaging said portions to rotate said second portion at a speed dependent upon the speed of said first portion; said first portion engaging said input shaft to rotate in response thereto; d. drive means having a first portion engaging said input shaft for rotation therewith and a second portion rotationally driven in response to the rotation of the first portion thereof; e. a bevel gear connected to said second portion of said variable speed transmission for rotation therewith; f. a cage comprising a ring having at least one bevel gear engaged with said first mentioned bevel gear, a supported therein for rotation about its axis; g. an additional bevel gear engaging the bevel gear supported within said cage; and h. force transmission means coacting with and engaging said cage, said second portion of said driven means, said additional bevel gear, and said output shaft to transmit the force necessary to rotate said output shaft in response to rotation of said input shaft; i. the ratio of said gears being such as to rotate said output shaft in either forward or reverse depending on the speed of rotation of said variable speed transmission.
Claim 2
Dependent Claim
228 words
A constant horsepower variable speed reversing transmission, comprising: a. an input shaft; b. an output shaft spaced from said input shaft; c. a variable speed transmission having: a first portion; a second portion; and connecting means engaging said portions to rotate said second portion at a speed dependent upon the speed of said first portion; said first portion engaging said input shaft to rotate in response thereto; d. drive means having a first portion engaging said input shaft for rotation therewith and a second portion rotationally driven in response to the rotation of the first portion thereof; e. a bevel gear connected to said second portion of said variable speed transmission for rotation therewith; f. a cage comprising a ring having at least one bevel gear engaged with said first mentioned bevel gear, a supported therein for rotation about its axis; g. an additional bevel gear engaging the bevel gear supported within said cage; and h. force transmission means coacting with and engaging said cage, said second portion of said driven means, said additional bevel gear, and said output shaft to transmit the force necessary to rotate said output shaft in response to rotation of said input shaft; i. the ratio of said gears being such as to rotate said output shaft in either forward or reverse depending on the speed of rotation of said variable speed transmission.
Claim 3
Dependent Claim
52 words
The invention of claim 1 wherein said force transmission means comprises a fixed connection between said second portion of said drive means and said cage so that said cage rotates therewith; and a fixed connection between said last mentioned bevel gear and said output shaft, so that said output shaft rotates therewith.
Claim 4
Dependent Claim
42 words
The invention of claim 2 wherein said input shaft is parallel to said output shaft and an intermediate shaft is provided which is coaxial with said output shaft and which supports said second portion of said variable speed transmission for rotation therewith.
Claim 5
Dependent Claim
28 words
The invention of claim 3 wherein said coaxial shafts are disposed such that the intermediate shaft extends within said output shaft for support in a rotating fit therewith.
Claim 6
Dependent Claim
63 words
The invention of claim 2 wherein said first portion of said drive means comprises a first sprocket gear mounted on said input shaft; and said second portion of said drive means comprises a second sprocket gear fixedly connected to said cage; and said drive means further comprises a chain connecting said gears so that said first sprocket gear drives said second sprocket gear.
Claim 7
Dependent Claim
39 words
The invention of claim 2 wherein said variable speed transmission is comprised of a plurality of cone-shaped discs forming a plurality of pulleys and having a V-belt connecting them to drive one in response to rotation of the other.
Claim 8
Dependent Claim
39 words
The invention of claim 1 wherein said force transmission means comprises a fixed connection between said second portion of saiD drive means and said last mentioned bevel gear; and a fixed connection between said cage and said output shaft.
Claim 9
Dependent Claim
24 words
The invention of claim 7 wherein said ring is disposed about said output shaft and said last mentioned fixed connection is within said ring.
Claim 10
Dependent Claim
24 words
The invention of claim 8 wherein a block is connected to said output shaft within said ring to form said last mentioned fixed connection.
Claim 11
Dependent Claim
45 words
The invention of claim 9 wherein a plurality of bevel gears are supported for rotation about their axes within said ring on radially extending shafts and said block is connected to said cage by extension of said shafts holding said bevel gears within said ring.
Claim 12
Dependent Claim
98 words
The invention of claim 7 wherein said drive means comprises a first gear mounted on said input shaft for rotation therewith; an idler shaft mounted for rotation within bearing blocks; a second gear mounted on said idler shaft for rotation therewith and engaging said first mentioned gear for rotation in response thereto; a sprocket gear mounted for rotation on said idler shaft to rotate in response to rotation thereof; a second sprocket gear connected to said last mentioned bevel gear for rotation therewith; and a chain supporting said sprocket gears to rotate one in response to the other.
Claim 13
Dependent Claim
67 words
The invention of claim 7 wherein said input and output shafts are parallel to one another and the first portions of said variable speed transmission and said drive means are mounted for rotation on said input shaft so that they will rotate therewith and the second portion of said variable speed transmission and said drive means are disposed about said output shaft so that they rotate thereabout.
Claim 14
Dependent Claim
37 words
The invention of claim 7 wherein said variable speed transmission comprises a plurality of cone-shaped discs forming a plurality of pulleys and having a V-belt connecting them to drive one in response to rotation of the other.
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |