US3900213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable king pin
Assignee: Overhead Door Corp
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Filing: 1974-12-12
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Granted: 1975-08-19
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Expires: 1994-12-12
Abstract
Abstract A structure to provide for the longitudinal adjustment of a king pin relative to a vehicle chassis so that the distance between the king pin and the axle support for the chassis may be selectively varied. The structure comprises a mounting plate on the chassis with a pair of openings formed therein and a king pin supporting plate having a king pin depending downwardly therefrom for selective extension through either one or the other of the openings in the mounting plate. The king pin supporting plate is so proportioned as to cover the unused opening in the mounting plate and aligned openings are provided in the respective plates for the receipt of screw fasteners.
Inventors
- 👤 Joseph J Cunha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:46
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0842
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
172 words
King pin attachment structure for use on a vehicle chassis suspended at least on end thereof on a wheel supported axle, said structure comprising: a generally horizontally disposed mounting plate on the chassis, said plate having at least two spaced openings formed therein so as to open to the exterior underside of the chassis, said openings being proportioned for the extension of a king pin therethrough; a king pin plate proportioned to overlie and cover both of the openings in the mounting plate, said king pin plate having a king pin fixed thereto and extending downwardly therefrom for select extension through one or the other of the openings; and securing means to selectively secure said king pin plate to the mounting plate whereby said plates may be secured in locked engagement with one another with the king pin extending through one or the other of the openings or released From such engagement to provide for rotation of said plate to position the king pin in one or the other of the openings.
Claim 2
Dependent Claim
172 words
King pin attachment structure for use on a vehicle chassis suspended at least on end thereof on a wheel supported axle, said structure comprising: a generally horizontally disposed mounting plate on the chassis, said plate having at least two spaced openings formed therein so as to open to the exterior underside of the chassis, said openings being proportioned for the extension of a king pin therethrough; a king pin plate proportioned to overlie and cover both of the openings in the mounting plate, said king pin plate having a king pin fixed thereto and extending downwardly therefrom for select extension through one or the other of the openings; and securing means to selectively secure said king pin plate to the mounting plate whereby said plates may be secured in locked engagement with one another with the king pin extending through one or the other of the openings or released From such engagement to provide for rotation of said plate to position the king pin in one or the other of the openings.
Claim 3
Dependent Claim
60 words
King pin attachment structure according to claim 1 wherein the mounting plate is provided with an upwardly disposed recess extending aroung the openings therein, said recess being proportioned for receipt of the king pin plate so that the king pin plate assumes countersunk relationship with respect to the mounting plate when the plates are in locked engagement with one another.
Claim 4
Dependent Claim
47 words
King pin attachment structure according to claim 2 wherein the securing means comprises: a plurality of fastener openings formed in the respective plates for alignment with one another when the plates are in engagement; and fasteners engagable with said openings to secure the plates to one another.
Claim 5
Dependent Claim
100 words
King pin attachment structure for use on a vehicle chassis suspended at at least one end thereof on a wheel supported axle, said structure comprising: a generally horizontally disposed mounting plate on the chassis; a generally horizontally disposed king pin plate having a single king pin extending downwardly therefrom in eccentric relationship to the vertical axis thereof; and, securing means to selectively secure the king pin plate to the mounting plate in one or the other of at least two positions wherein the king pin extends downwardly from the mounting plate at different spaced locations from the wheel supported axle.
Claim 6
Dependent Claim
100 words
King pin attachment structure for use on a vehicle chassis suspended at at least one end thereof on a wheel supported axle, said structure comprising: a generally horizontally disposed mounting plate on the chassis; a generally horizontally disposed king pin plate having a single king pin extending downwardly therefrom in eccentric relationship to the vertical axis thereof; and, securing means to selectively secure the king pin plate to the mounting plate in one or the other of at least two positions wherein the king pin extends downwardly from the mounting plate at different spaced locations from the wheel supported axle.
Claim 7
Dependent Claim
51 words
King pin attachment structure according to claim 4 wherein in one of the positions the king pin is disposed forwardly of the vertical axis of the king pin plate and in the other of the positions the king pin is disposed rearwardly of the vertical axis of the king pin plate.
Claim 8
Dependent Claim
57 words
King pin attachment structure according to claim 5 wherein the securing means comprises a plurality of fastener openings formed in the respective plates for alignment with one another when the king pin plate is in either one or the other of the two positions; and fasteners engagable with said openings to secure the plates to one another.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |