Patent US3764166A successfully refreshed from Google Patents.
US3764166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the coupling of a mobile roll trailer
Assignee: FIALA KG MARTIN
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Filing: 1972-03-09
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Granted: 1973-10-09
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Expires: 1992-03-09
Abstract
Abstract A coupling apparatus, especially for coupling a traction vehicle to a trailer vehicle in which a socket on one vehicle receives the free end of an arm on the other vehicle with the socket having a region intermediate the ends the same width as the arm and tapering out rearwardly from the said region. The arm tapers inwardly toward the free end and the socket includes centering means to engage the arm and center it in the socket.
Inventors
- 👤 W Fiala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:50
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807; B62D53/0821; B62D49/00; B62D49/005; B62D49/007; B62D53/06; B62D53/061; B62D53/062; B62D53/065
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
222 words
In a coupling apparatus for coupling a trailer vehicle to a traction vehicle, a coupling jaw on one vehicle and a coupling arm on the other vehicle, said coupling jaw having a longitudinal socket formed therein with vertically facing top and bottom walls and laterally facing side walls, said socket having an entrance at the front end into which the end portion of said arm is introduced, the portion of said arm receivable in said socket tapering inwardly toward the free end thereof, vertically facing longitudinally spaced support surfaces on the top and bottom walls of said socket engageable with vertically facing surfaces of said portion of said arm, interengageable elements of force transmitting means on said arm and jaw tO transmit longitudinal forces between the vehicles and interengaging upon upward movement of one of said jaw and arm, said side walls of said socket having opposed regions which are spaced substantially the same distance as the width of that part of said portion of said arm which is adjacent thereto when the arm is disposed in the jaw, said side walls of said socket tapering outwardly rearwardly from said regions, and centering means in said socket rearwardly from said regions for engagement with the said portion of said arm near the free end thereof for centering said arm in said jaw.
Claim 2
Dependent Claim
222 words
In a coupling apparatus for coupling a trailer vehicle to a traction vehicle, a coupling jaw on one vehicle and a coupling arm on the other vehicle, said coupling jaw having a longitudinal socket formed therein with vertically facing top and bottom walls and laterally facing side walls, said socket having an entrance at the front end into which the end portion of said arm is introduced, the portion of said arm receivable in said socket tapering inwardly toward the free end thereof, vertically facing longitudinally spaced support surfaces on the top and bottom walls of said socket engageable with vertically facing surfaces of said portion of said arm, interengageable elements of force transmitting means on said arm and jaw tO transmit longitudinal forces between the vehicles and interengaging upon upward movement of one of said jaw and arm, said side walls of said socket having opposed regions which are spaced substantially the same distance as the width of that part of said portion of said arm which is adjacent thereto when the arm is disposed in the jaw, said side walls of said socket tapering outwardly rearwardly from said regions, and centering means in said socket rearwardly from said regions for engagement with the said portion of said arm near the free end thereof for centering said arm in said jaw.
Claim 3
Dependent Claim
23 words
An apparatus according to claim 1 in which at least the side walls of said socket taper outwardly forwardly of said regions thereof.
Claim 4
Dependent Claim
19 words
An apparatus according to claim 1 in which said regions are parallel over the entire height of said socket.
Claim 5
Dependent Claim
37 words
An apparatus according to claim 1 in which said centering means comprises upwardly facing inclined portions upstanding from the bottom wall of said socket and divergent in their upward direction and engageable with said arm from below.
Claim 6
Dependent Claim
20 words
An apparatus according to claim 4 in which said inclined portions extend to the said side walls of said socket.
Claim 7
Dependent Claim
21 words
An apparatus according to claim 4 in which said inclined portions are part of the said side walls of said socket.
Claim 8
Dependent Claim
26 words
An apparatus according to claim 4 in which said inclined portions form a part of the rearwardly disposed one of said support surfaces in said socket.
Claim 9
Dependent Claim
25 words
An apparatus according to claim 4 in which said inclined portions incline upwardly in respectively opposite directions from the longitudinal center line of said socket.
Claim 10
Dependent Claim
33 words
An apparatus according to claim 4 in which said inclined portions are formed by inclined walls of a trough region formed in the bottom wall of said socket near the rear end thereof.
Claim 11
Dependent Claim
21 words
An apparatus according to claim 4 in which the side of said arm which faces said inclined portions is correspondingly inclined.
Claim 12
Dependent Claim
44 words
An apparatus according to claim 1 in which one of the said support surface in said socket is near the front end thereof and comprises a downwardly facing horizontal surface disposed at the top of the socket and engageable with said arm from above.
Claim 13
Dependent Claim
68 words
An apparatus according to claim 1 in which said jaw is on said trailer vehicle and said arm is on said traction vehicle, a region of said arm spaced in the forward direction from said one end portion thereof swivelly connected to said traction vehicle, and means for raising and lowering said region of said arm on said traction vehicle for coupling and uncoupling of said coupling apparatus.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |