Patent US3851894A successfully refreshed from Google Patents.
US3851894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector
Assignee: Individual
•
Filing: 1973-05-30
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Granted: 1974-12-03
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Expires: 1993-05-30
Abstract
Abstract A connector for attaching implements such as snow plows to vehicles having an attaching shaft thereon includes spaced forked tines and a pair of spring biased lock plates adjacent the tines and having holes therein. To provide a connection, the vehicle attaching shaft enters the space between the tines, forces the lock plates open and enters the holes therein whereupon the lock plates close, locking the shaft to the connector. A lock-release mechanism is also provided.
Inventors
- 👤 H Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:41
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/54; B60D; B60D3/00; B62; B62D; B62D49/00; B62D49/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A connector for attaching an implement to a vehicle having an attaching shaft thereon, comprising: a main frame having a fork on either side thereof and adapted to receive an attaching shaft; a pair of lock plates, each having a hole therein adjacent the closed end of the fork and disposed outside said forks; means for laterally biasing said lock plates against said forks such that forces applied to the inner portions of said lock plates by an attaching shaft against said biasing means will cause outward lateral movement of said lock plates; and means for opening said lock plates to permit release of the attaching shaft.
Claim 2
Dependent Claim
107 words
A connector for attaching an implement to a vehicle having an attaching shaft thereon, comprising: a main frame having a fork on either side thereof and adapted to receive an attaching shaft; a pair of lock plates, each having a hole therein adjacent the closed end of the fork and disposed outside said forks; means for laterally biasing said lock plates against said forks such that forces applied to the inner portions of said lock plates by an attaching shaft against said biasing means will cause outward lateral movement of said lock plates; and means for opening said lock plates to permit release of the attaching shaft.
Claim 3
Dependent Claim
11 words
A connector as defined in claim 1, said forks being v-shaped.
Claim 4
Dependent Claim
21 words
A connector as defined in claim 1, said forks being arranged at an obtuse angle with respect to said main frame.
Claim 5
Dependent Claim
20 words
A connector as defined in claim 1, further including at least two springs biasing said lock plates toward said forks.
Claim 6
Dependent Claim
73 words
A connector as defined in claim 1, wherein said opening means includes a reLease handle; a pair of connecting arms, one coupled to each of said lock plates; and a pair of rods coupling said release handle to said connecting arms such that operating said release handle causes rotation of said connecting arms through said rods and causes lateral movement of said lock plates permitting disconnection of the connector from the attaching shaft.
Claim 7
Dependent Claim
19 words
A connector as defined in claim 5, further including means for latching said release handle in an open position.
Claim 8
Dependent Claim
23 words
A connector as defined in claim 6, further including means for releasing said latch when the connector is removed from the attaching shaft.
Claim 9
Dependent Claim
28 words
A connector as defined in claim 7, wherein said means for releasing said latch includes a chain attached to the vehicle and loosely coupled to said latching means.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |