US3719385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chassis-to-container locking means
Assignee: Pullman Inc
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Filing: 1970-12-15
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Granted: 1973-03-06
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Expires: 1990-12-15
Abstract
Abstract A locking mechanism for coupling of the trailer chassis to the supported container where the locking mechanism is an end extension of the chassis cross member having an intermediate transverse wall and a back wall adjacent the container corner casting, a rearward horizontally extending rotatable locking pin reciprocally disposed in both walls from a withdrawn unlocked position with the rearward end of the pin inwardly of the back wall to an extended locked position with the rear end of the pin being outwardly of the back wall and into the end opening in the container corner casting, handle means for rotating and longitudinally moving the pin between both positions with the handle riding and a vertical slot and a diagonal extending horizontal guide slot and spring means connecting with a moment arm on the front side of the pin for biasingly holding the pin in either position.
Inventors
- 👤 G Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:51
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/13
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
169 words
A coupler device for attaching a container corner casting to the chassis of a highway trailer comprising: a container locking housing, a pair of upright walls being apertured for journaling a locking pin therein, a locking pin supported by said pair of walls for reciprocal movement between container locked and container unlocked positions, cam slot means provided on the housing for receiving handle means therethrough, handle means connecting with said pin and engaging the edges of the slot means for reciprocal movement and rotational movement of the locking pin between the locked and unlocked positions, said slot means including a vertical slot in the end of the housing and a diagonal slot in the top of the housing connecting with the vertical slot providing for horizontal reciprocal and rotational movement of the pin, and biasing means on said housing connecting with said locking pin and urging said handle means upwardly into and against the diagonal slot or downwardly in the vertical slot against the lower part of the housing.
Claim 2
Dependent Claim
169 words
A coupler device for attaching a container corner casting to the chassis of a highway trailer comprising: a container locking housing, a pair of upright walls being apertured for journaling a locking pin therein, a locking pin supported by said pair of walls for reciprocal movement between container locked and container unlocked positions, cam slot means provided on the housing for receiving handle means therethrough, handle means connecting with said pin and engaging the edges of the slot means for reciprocal movement and rotational movement of the locking pin between the locked and unlocked positions, said slot means including a vertical slot in the end of the housing and a diagonal slot in the top of the housing connecting with the vertical slot providing for horizontal reciprocal and rotational movement of the pin, and biasing means on said housing connecting with said locking pin and urging said handle means upwardly into and against the diagonal slot or downwardly in the vertical slot against the lower part of the housing.
Claim 3
Dependent Claim
169 words
A coupler device for attaching a container corner casting to the chassis of a highway trailer comprising: a container locking housing, a pair of upright walls being apertured for journaling a locking pin therein, a locking pin supported by said pair of walls for reciprocal movement between container locked and container unlocked positions, cam slot means provided on the housing for receiving handle means therethrough, handle means connecting with said pin and engaging the edges of the slot means for reciprocal movement and rotational movement of the locking pin between the locked and unlocked positions, said slot means including a vertical slot in the end of the housing and a diagonal slot in the top of the housing connecting with the vertical slot providing for horizontal reciprocal and rotational movement of the pin, and biasing means on said housing connecting with said locking pin and urging said handle means upwardly into and against the diagonal slot or downwardly in the vertical slot against the lower part of the housing.
Claim 4
Dependent Claim
169 words
A coupler device for attaching a container corner casting to the chassis of a highway trailer comprising: a container locking housing, a pair of upright walls being apertured for journaling a locking pin therein, a locking pin supported by said pair of walls for reciprocal movement between container locked and container unlocked positions, cam slot means provided on the housing for receiving handle means therethrough, handle means connecting with said pin and engaging the edges of the slot means for reciprocal movement and rotational movement of the locking pin between the locked and unlocked positions, said slot means including a vertical slot in the end of the housing and a diagonal slot in the top of the housing connecting with the vertical slot providing for horizontal reciprocal and rotational movement of the pin, and biasing means on said housing connecting with said locking pin and urging said handle means upwardly into and against the diagonal slot or downwardly in the vertical slot against the lower part of the housing.
Claim 5
Dependent Claim
203 words
A chassis-to-container locking arrangement comprising: a lock housing, a locking pin supported for horizontal reciprocal and rotational movement within the housing, said housing having slot means being defined by an upper horizontal slot above the pin and a lower vertical slot outwardly of the pin and connecting with the horizontal slot, said horizontal slot extending transversely of said vertical slot, handle meanS extending through said slot means and connecting with said pin, said slot means having camming surfaces in both the horizontal and vertical slots for providing rotational and longitudinal reciprocal movement of the pin between locked and unlocked positions of the handle means, moment arm means at one end of the pin within the housing, the other end of the pin being extendable within the housing in the unlocked position and without the housing in the locked position for engagement with the aperture in the corner of the container, and spring means connecting the moment arm means with the housing with the spring means being in an over-center relation with respect to the axis of the pin in both locked and unlocked positions thereof with the handle means being held against movement with the upper slot and with the lower slot alternately.
Claim 6
Dependent Claim
203 words
A chassis-to-container locking arrangement comprising: a lock housing, a locking pin supported for horizontal reciprocal and rotational movement within the housing, said housing having slot means being defined by an upper horizontal slot above the pin and a lower vertical slot outwardly of the pin and connecting with the horizontal slot, said horizontal slot extending transversely of said vertical slot, handle meanS extending through said slot means and connecting with said pin, said slot means having camming surfaces in both the horizontal and vertical slots for providing rotational and longitudinal reciprocal movement of the pin between locked and unlocked positions of the handle means, moment arm means at one end of the pin within the housing, the other end of the pin being extendable within the housing in the unlocked position and without the housing in the locked position for engagement with the aperture in the corner of the container, and spring means connecting the moment arm means with the housing with the spring means being in an over-center relation with respect to the axis of the pin in both locked and unlocked positions thereof with the handle means being held against movement with the upper slot and with the lower slot alternately.
Claim 7
Dependent Claim
138 words
A coupler device for attaching a container corner casting to the chassis of a highway trailer comprising: a container locking housing, a pair of upright walls being apertured for journaling a locking pin therein, a locking pin supported by said pair of walls for reciprocal movement between container locked and container unlocked positions, cam slot means provided on the housing for receiving handle means therethrough, handle means connecting with said pin and engaging the edges of the slot means for reciprocal movement and rotational movement of the locking pin between the locked and unlocked positions, and a moment arm mounted on the locking pin within said housing and spring means connecting the moment arm with the housing and urging said locking pin into locked and unlocked over-center condition in both the locked and unlocked positions of the pin.
Claim 8
Dependent Claim
138 words
A coupler device for attaching a container corner casting to the chassis of a highway trailer comprising: a container locking housing, a pair of upright walls being apertured for journaling a locking pin therein, a locking pin supported by said pair of walls for reciprocal movement between container locked and container unlocked positions, cam slot means provided on the housing for receiving handle means therethrough, handle means connecting with said pin and engaging the edges of the slot means for reciprocal movement and rotational movement of the locking pin between the locked and unlocked positions, and a moment arm mounted on the locking pin within said housing and spring means connecting the moment arm with the housing and urging said locking pin into locked and unlocked over-center condition in both the locked and unlocked positions of the pin.
Claim 9
Dependent Claim
18 words
The invention according to claim 3, and said handle means having an extension connecting with said moment arm.
Claim 10
Dependent Claim
45 words
The invention according to claim 3, and said slot means including a vertical slot in the end of the housing and a diagonal slot in the top of the housing connecting with the vertical slot providing for horizontal reciprocal and rotational movement of the pin.
Claim 11
Dependent Claim
18 words
The invention according to claim 5, and a chassis cross member having an end extension defining said housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |