US3842682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed responsive governor mechanism
Assignee: ZF International UK Ltd
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Filing: 1972-08-04
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Granted: 1974-10-22
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Expires: 1992-08-04
Abstract
Abstract A speed responsive governor arrangement comprises a rotatable governor mechanism having an output member engaging one end of a lever whose other end has a cam surface. A further cam surface is opposed to the cam surface on the lever and is movable relative thereto by a linkage responsive to two input parameters. A spring loaded device is located between the cam surfaces so as to bias them apart. This device is rotatable in response to a third parameter, so that the moment applied to the lever, and hence to the output member of the governor mechanism to oppose movement thereof in response to an increase in speed, is variable in accordance with the aforesaid three parameters.
Inventors
- 👤 J Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:41
CPC Classifications
G; G05; G05D; G05D13/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
231 words
A speed-responsive governor arrangement comprising a body, a governor mechanism rotatably mounted in said body and including an output member movable relative to said body, a first lever pivotally mounted on the body and movable by said output member in response to changes in the speed of a shaft which provides a drive for the governor, said first lever having thereon a cam surface, a second lever pivotally mounted on the body and movable in response to a first parameter, a third lever pivotally attached to said body and pivotally mounted on the second lever for movement in response to a second parameter, a fourth lever pivotally mounted on said third lever and having a cam surface spaced from, and directed towards the cam surface on the first lever, a support mounted in said body and engaging said fourth lever at a location thereon spaced from the pivotal mounting thereof, whereby the cam surface on the fourth lever is movable relative to the cam surface on the first lever in response to said first and second parameters, a device angularly movable relative to the pivotal axis of the first lever and a spring carried by said member and acting to urge said cam surfaces apart, whereby angular movement of said device varies the moment of the spring force on the first lever in accordance with the position of the fourth lever.
Claim 2
Dependent Claim
231 words
A speed-responsive governor arrangement comprising a body, a governor mechanism rotatably mounted in said body and including an output member movable relative to said body, a first lever pivotally mounted on the body and movable by said output member in response to changes in the speed of a shaft which provides a drive for the governor, said first lever having thereon a cam surface, a second lever pivotally mounted on the body and movable in response to a first parameter, a third lever pivotally attached to said body and pivotally mounted on the second lever for movement in response to a second parameter, a fourth lever pivotally mounted on said third lever and having a cam surface spaced from, and directed towards the cam surface on the first lever, a support mounted in said body and engaging said fourth lever at a location thereon spaced from the pivotal mounting thereof, whereby the cam surface on the fourth lever is movable relative to the cam surface on the first lever in response to said first and second parameters, a device angularly movable relative to the pivotal axis of the first lever and a spring carried by said member and acting to urge said cam surfaces apart, whereby angular movement of said device varies the moment of the spring force on the first lever in accordance with the position of the fourth lever.
Claim 3
Dependent Claim
22 words
An arrangement as claimed in claim 1 which includes means for varying the position of the pivotal axis of said second lever.
Claim 4
Dependent Claim
47 words
An arrangement as claimed in claim 1 in which the pivotal axis of said second lever is adjacent one and thereof, and which includes a first actuating member engageable with the other end of said second lever to move the latter in response to said second parameter.
Claim 5
Dependent Claim
14 words
An arrangement as claimed in claim 3 in which said first actuating member cam.
Claim 6
Dependent Claim
31 words
An arrangement as claimed in claim 3 which includes a second actuating member engageable with one end of said third lever to move the latter in response to said third parameter.
Claim 7
Dependent Claim
16 words
An arrangement as claimed in claim 5 in which said second actuating member comprises a cam.
Claim 8
Dependent Claim
28 words
An arrangement as claimed in claim 5 in which said third lever is pivotally mounted on said second lever intermediate said pivotal axis and said other end thereof.
Claim 9
Dependent Claim
41 words
An arrangement as claimed in claim 7 in which said one end of said third lever and said other end of said second lever lie on the same side of the pivotal axis of said third lever on said second lever.
Claim 10
Dependent Claim
28 words
An arrangement as claimed in claim 8 which includes means for biasing said one end of said third lever away from said other end of said second lever..
Claim 11
Dependent Claim
26 words
An arrangement as claimed in claim 8 in which the pivotal axis of said fourth lever on said third lever is adjacent the other end thereof.
Claim 12
Dependent Claim
26 words
An arrangement as claimed in claim 1 which includes means for moving said fourth lever about its pivotal axis independently of said first and second parameters.
Claim 13
Dependent Claim
37 words
An arrangement as claimed in claim 11 in which said means for moving said fourth lever comprises a member slidable in said body and engaging an end of said fourth lever remote from the pivoTal axis thereof.
Claim 14
Dependent Claim
76 words
An arrangement as claimed in claim 1 in which said angularly movable device includes a member pivotally mounted in said body for movement about an axis intermediate said cam surfaces and fifth and sixth levers pivotally mounted on said member, said spring comprising a tension spring engaging one end of each of said fifth and sixth levers, the other ends of said fifth and sixth levers being biased by said spring towards said respective cam surfaces.
Claim 15
Dependent Claim
28 words
An arrangement as claimed in claim 13 in which said fifth and sixth levers include rollers at said other ends thereof, said rolers engaging said respective cam surfaces.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |