Patent US3691859A successfully refreshed from Google Patents.
US3691859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent drive structure
Assignee: Box Innards Inc
•
Filing: 1970-09-01
•
Granted: 1972-09-19
•
Expires: 1990-09-01
Abstract
Abstract An intermittent drive structure for driving a driven shaft employing a clutch can be constructed utilizing a means for transmitting motion to the clutch so as to cause rotation of the driven shaft and a drive means for causing oscillation of the means for transmitting motion. Such a structure employs means for opening the clutch at one extreme of the oscillation caused by the drive means and for closing the structure at the other extreme of the drive means.
Inventors
- 👤 Charles L Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:10
CPC Classifications
F; F16; F16H; F16H31/00; F16H29/00; F16H29/02; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1515; Y10T74/1524; Y10T74/1526; Y10T74/1532
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
172 words
An intermittent drive structure which comprises: a driven shaft, a mechanical, friction clutch means for transmitting motion to said driven shaft, said clutch means being capable of being opened and closed, a mechanical, friction brake means for holding said driven shaft against rotation when said clutch means is opened, said brake means being connected to said shaft, means for transmitting motion to said clutch means so as to cause rotation of said driven shaft, said means for transmitting motion being connected to said clutch means, drive means for oscillating said means for transmitting motion, said drive means being connected to said means for transmitting motion, and a single mechanical linkage means for opening said clutch means at one extreme of the oscillation of the motion caused by said drive means and for closing saId clutch means at the other extreme of the oscillation of the motion caused by said drive means and for operating said brake means so as to stop rotation of said driven shaft when said clutch means is open.
Claim 2
Dependent Claim
172 words
An intermittent drive structure which comprises: a driven shaft, a mechanical, friction clutch means for transmitting motion to said driven shaft, said clutch means being capable of being opened and closed, a mechanical, friction brake means for holding said driven shaft against rotation when said clutch means is opened, said brake means being connected to said shaft, means for transmitting motion to said clutch means so as to cause rotation of said driven shaft, said means for transmitting motion being connected to said clutch means, drive means for oscillating said means for transmitting motion, said drive means being connected to said means for transmitting motion, and a single mechanical linkage means for opening said clutch means at one extreme of the oscillation of the motion caused by said drive means and for closing saId clutch means at the other extreme of the oscillation of the motion caused by said drive means and for operating said brake means so as to stop rotation of said driven shaft when said clutch means is open.
Claim 3
Dependent Claim
81 words
An intermittent drive structure as claimed in claim 1 wherein: said drive means oscillates said means for transmitting motion so that the motion imparted to said means for transmitting motion and to said driven shaft when said clutch means is closed is at a variable rate which decreases to zero at the extremes of the oscillation caused by said drive means. For convenience of reference, the following claim 3 which is not being amended is reproduced in this amendment without change:
Claim 4
Dependent Claim
17 words
An intermittent drive structure as claimed in claim 2 wherein: said drive means is an eccentric drive.
Claim 5
Dependent Claim
20 words
An intermittent drive structure as claimed in claim 1 wherein: said brake means forms a part of said clutch means.
Claim 6
Dependent Claim
181 words
An intermittent drive structure as claimed in claim 1 wherein: said means for transmitting motion includes, a spur gear connected to said clutch means, and a rack gear engaging said spur gear, said rack gear being connected to said drive means, said drive means includes, an eccentric and a drive arm connected to said eccentric, said eccentric being synchronized with said means for opening and for closing said clutch means so that the motion imparted to said spur gear and to said driven shaft when said clutch means is closed is at a variable rate which decreases to zero at the extremes of the oscillation caused by motion of said eccentric being transmitted through said drive arm and said gear rack to said spur gear, said brake means forms a part of said clutch means, and including, a retainer housing mounted about the axis of rotation of said spur gear, said housing holding said gear rack in engagement with said spur gear and being capable of rotating about the axis of said spur gear during the movement of said drive arm.
Claim 7
Dependent Claim
41 words
An intermittent drive structure as claimed in claim 1 wherein: said means for transmitting motion includes, a spur gear connected to said clutch means, and a rack gear engaging said spur gear, said rack gear being connected to said drive means.
Claim 8
Dependent Claim
94 words
An intermittent drive structure as claimed in claim 6 wherein: said drive means includes: an eccentric and a drive arm connected to said eccentric, said eccentric being synchronized with said means for opening and for closing said clutch means so that the motion imparted to said spur gear and to said driven shaft when said clutch means is closed is at a variable rate which decreases to zero at the extremes of the oscillation caused by motion of said eccentric being transmitted through said drive arm and said gear rack to said spur gear.
Claim 9
Dependent Claim
54 words
An intermittent drive structure as claimed in claim 7 including: a retainer housing mounted about the axis of rotation of said spur gear, said housing holding said gear rack in engagement with said spur gear and being capable of rotating about the axis of said spur gear during the movement of said drive arm.
References Cited (Backward Citations)
US1476766A
Cited
US2997889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |