Patent US4331114A successfully refreshed from Google Patents.
US4331114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary engine stoppage apparatus
Assignee: Caterpillar Inc
•
Filing: 1980-10-01
•
Granted: 1982-05-25
•
Expires: 2000-10-01
Abstract
Abstract Apparatus (10) for stopping an engine from a remote location relative to an operator's work station. An engagement apparatus (20) which is displaceable between first and second positions is engaged with an engine stoppage member (19) which, when rotatably displaced by the engagement apparatus (20) between two positions corresponding to the first and second positions of the engagement apparatus (20), can permit engine operation or induce engine shutdown. An actuating link (24) interconnected with engagement apparatus (20) is displaceable, when subjected to a momentarily applied external force, between engine operating and engine shutdown positions. A spring (30) biases engagement apparatus (20) towards the first and second positions when the actuating link (24) occupies the engine operation and shutdown positions, respectively. Externally applied forces on actuating link 24 are not transmitted directly to the engine stoppage member (19) since the spring (30) completes the movement of engagement apparatus (20) to first and second positions in response to movement of actuating link (24). Consequently, no damage occurs to stoppage member (19) but engine stoppage is assured.
Inventors
- 👤 David O. Karraker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:32
CPC Classifications
F; F02; F02D; F02D11/00; F02D11/02; F02D17/00; F02D17/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
226 words
An auxiliary engine stoppage apparatus (10,10') for an engine governor (18) having an engine stoppage member (19) which is arcuately displaceable between first and second positions which respectively permit engine operation and induce engine shutdown, said auxiliary engine stoppage apparatus (10,10') comprising: a first stationary frame member (26); an actuating link (24,24') in sliding engagement with said first frame member (26), said actuating link being displaceable by an external force between first and second positions; an engagement apparatus (20,20') joined to said engine stoppage member (19) for displacing said engine stoppage member (19) between its first and second positions in response to displacement of said actuating link (24,24') between its first and second positions, respectively, said engagement apparatus (20,20') including an engagement link (22,22') which is pivotable about a stationary primary axis (36) and is displaceable between first and second positions which respectively correspond to engine operation and shutdown; means for pivotably connecting (28,28') said actuating link (24,24') to said engagement link (22,22') about a secondary axis (38), said pivotal connecting means (28,28') being displaceable with said actuating link (24,24') and said engagement link (22,22'); and means connecting said actuating link (24,24') and said engagement link (22,22') for biasing (30) said engagement link (22,22') to said operational and shutdown positions with a predetermined, independent force when said actuating link (24,24') occupies first and second positions, respectively.
Claim 2
Dependent Claim
226 words
An auxiliary engine stoppage apparatus (10,10') for an engine governor (18) having an engine stoppage member (19) which is arcuately displaceable between first and second positions which respectively permit engine operation and induce engine shutdown, said auxiliary engine stoppage apparatus (10,10') comprising: a first stationary frame member (26); an actuating link (24,24') in sliding engagement with said first frame member (26), said actuating link being displaceable by an external force between first and second positions; an engagement apparatus (20,20') joined to said engine stoppage member (19) for displacing said engine stoppage member (19) between its first and second positions in response to displacement of said actuating link (24,24') between its first and second positions, respectively, said engagement apparatus (20,20') including an engagement link (22,22') which is pivotable about a stationary primary axis (36) and is displaceable between first and second positions which respectively correspond to engine operation and shutdown; means for pivotably connecting (28,28') said actuating link (24,24') to said engagement link (22,22') about a secondary axis (38), said pivotal connecting means (28,28') being displaceable with said actuating link (24,24') and said engagement link (22,22'); and means connecting said actuating link (24,24') and said engagement link (22,22') for biasing (30) said engagement link (22,22') to said operational and shutdown positions with a predetermined, independent force when said actuating link (24,24') occupies first and second positions, respectively.
Claim 3
Dependent Claim
68 words
The apparatus of claim 1 wherein said biasing means constitutes a spring (30) having first (30a) and second (30b) ends pivotally connected to said engagement link (22,22') and said actuating link (24,24') respectively, said spring (30) biasing said engagement link (22,22') to said operational and shutdown positions when said pivotable connecting means (28,28') is on first and second sides, respectively, of a line connecting said spring ends (30a,30b).
Claim 4
Dependent Claim
26 words
The apparatus of claim 1 further comprising: a second stationary frame member (42) for restricting the motion of said engagement link (22) beyond said second position.
Claim 5
Dependent Claim
48 words
The apparatus of claim 1 wherein said actuating link (24) has a stopping segment (24a) which is engageable with said engagement link (22) and cooperates with said first frame member (26) to restrict said actuating link's (24) movement when said engagement link (22) is in said first position.
Claim 6
Dependent Claim
95 words
The apparatus of claim 1 further comprising: an extension assembly (40,40') having a graspable member (40a); an elongated member (40b) joined to said graspable member and extending through an opening (24c) in said actuation link (24); and first (40c,40c') and second (40d) abutting members disposed on opposite sides of said actuating link's opening (24c), said abutting members (40c,40c',40d) being larger than said opening (24c) and being engageable with said actuating link (24) to provide displacement thereof during movement of said graspable member (40a) and elongated member (40b) in a first and a second direction, respectively.
Claim 7
Dependent Claim
55 words
The apparatus of claim 1 wherein said engine stoppage member (19) constitutes a shaft which has an axis of rotation coincidental with said primary axis (36) and is radially engageable with said engagement link (22) such that said shaft (19) is circumferentially displaceable when said engagement link (22) is pivoted about said primary axis (36).
Claim 8
Dependent Claim
87 words
The linkage of claim 1, said engagement apparatus further comprising: a torquing member (52) radially engaged with said engine stoppage member (19), said torquing member (52) constituting at least one radial extension (54) having circumferential sides (54a,54b); and a translatable plunger (50) having first and second ends (50a,50b) respectively abuttable with said engagement link (22') and a circumferential side (54a) of said radial extension (54) so as to arcuately displace said engine stoppage member (19) when said engagement link (22') is pivoted about said primary axis (36).
References Cited (Backward Citations)
CA557902A
Cited
US2719521A
Cited
US2854964A
Cited
GB951808A
Cited
US3237478A
Cited
GB1164165A
Cited
GB1253322A
Cited
US3640258A
Cited
US3603300A
Cited
GB1373086A
Cited
US3865090A
Cited
GB1465121A
Cited
US4108129A
Cited
US4072332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |