US3887096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick attachment and release device
Assignee: Individual
•
Filing: 1973-10-11
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Granted: 1975-06-03
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Expires: 1993-10-11
Abstract
Abstract A quick attachment and release device for guided and automatic releasable attachment of a first member to a second member, useful typically for attaching an agricultural implement to and releasing it from a pair of spaced actuating arms of a loader attached to a tractor. The quick attachment and release device consists of two registrable elements, one of which is permanently attached to the first member and the other of which is permanently attached to the second member. The elements of the quick attachment and release device are characterized by a Cshaped bracket and a rectangular key whereby the key can be moved from a position independent of the bracket to a position of locked engagement therewith. The quick attachment and release device is generally aided by an orientation bracket for guiding the rectangular key toward engagement with the C-shaped bracket.
Inventors
- 👤 Lloyd R Wieland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/3604; E02F3/3609; E02F3/3622; E02F3/3668; E02F3/3672; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1049
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A quick attachment and release device for releasably attaching a first member to a second member which comprises: a rectangular key having a major and a minor dimension pivotally mounted to said first member for rotation about the transverse axis of said key and biased toward a normal position; a C-shaped bracket secured to said second member to permit registration with said rectangular key, and having an inner surface with a maximum inside dimension slightly greater than said major dimension and an opening smaller than said major dimension and greater than said minor dimension to thereby permit entry of said key into said bracket; and means for orienting said rectangular key wherein said rectangular key is oriented away from said normal position for passage through said opening of said C-shaped bracket and returns toward said normal position within said C-shaped bracket for locked engagement therewith.
Claim 2
Dependent Claim
145 words
A quick attachment and release device for releasably attaching a first member to a second member which comprises: a rectangular key having a major and a minor dimension pivotally mounted to said first member for rotation about the transverse axis of said key and biased toward a normal position; a C-shaped bracket secured to said second member to permit registration with said rectangular key, and having an inner surface with a maximum inside dimension slightly greater than said major dimension and an opening smaller than said major dimension and greater than said minor dimension to thereby permit entry of said key into said bracket; and means for orienting said rectangular key wherein said rectangular key is oriented away from said normal position for passage through said opening of said C-shaped bracket and returns toward said normal position within said C-shaped bracket for locked engagement therewith.
Claim 3
Dependent Claim
50 words
The apparatus of claim 1 wherein said means for orienting said rectangular key comprises first means for rotationally displacing said rectangular key for passage through said opening of said C-shaped bracket and second means for biasing said rectangular key toward said normal position for locked engagement with said C-shaped bracket.
Claim 4
Dependent Claim
70 words
The apparatus of claim 2 wherein, when said rectangular key is in said normal position, said major dimension of said rectangular key is substantially at a right angle to a position for passage through said opening in said C-shaped bracket and wherein, when said rectangular key is within said C-shaped bracket for locked engagement therewith, said major dimension is substantially parallel to said maximum inside dimension of said C-shaped bracket.
Claim 5
Dependent Claim
138 words
The apparatus of claim 3 wherein said first means comprises an orientation bracket having a reverse curvature from that of said C-shaped bracket and secured thereto, said first means being so positioned that when said key is moved toward engagement with said C-shaped bracket, said orientation bracket engages said rectangular key in said normal position and as said key is further moved toward engagement with said C-shaped bracket said key is rotationally displaced about the transverse axis by said reverse curvature from said normal position to a position substantially at a right angle thereto for passage through said opening in said C-Shaped bracket and wherein said second means comprises a spring disposed to restore said rotationally displaced key from said position for passage through said opening in said C-shaped bracket to said normal position for locked engagement therewith.
Claim 6
Dependent Claim
30 words
The apparatus of claim 4 wherein said rectangular key is constrained to rotational displacement from said normal position to a position substantially at a right angle thereto by stop means.
Claim 7
Dependent Claim
161 words
A quick attachment and release device for releasably attaching an agricultural implement to a pair of spaced actuating arms of a loader comprising: a rectangular key pivotally mounted to each of said actuating arms for rotation about the transverse axes of said keys between a first position and a normal position, each of said keys having a major and a minor dimension; a pair of C-shaped brackets secured to said implement to permit registration with said rectangular keys, each of said brackets having an inner surface with a maximum inside dimension slightly greater than said major dimension and an opening smaller than said major dimension and greater than said minor dimension to thereby permit entry of said keys into said brackets; first means for orienting said rectangular keys to said first position for passage through said openings of said C-shaped brackets; and second means for orienting said rectangular keys to said normal position within said C-shaped brackets for locked engagement therewith.
Claim 8
Dependent Claim
161 words
A quick attachment and release device for releasably attaching an agricultural implement to a pair of spaced actuating arms of a loader comprising: a rectangular key pivotally mounted to each of said actuating arms for rotation about the transverse axes of said keys between a first position and a normal position, each of said keys having a major and a minor dimension; a pair of C-shaped brackets secured to said implement to permit registration with said rectangular keys, each of said brackets having an inner surface with a maximum inside dimension slightly greater than said major dimension and an opening smaller than said major dimension and greater than said minor dimension to thereby permit entry of said keys into said brackets; first means for orienting said rectangular keys to said first position for passage through said openings of said C-shaped brackets; and second means for orienting said rectangular keys to said normal position within said C-shaped brackets for locked engagement therewith.
Claim 9
Dependent Claim
142 words
The apparatus of claim 6 wherein an actuating arm guide bracket is provided for each of said actuating arms, each actuating arm guide bracket having an elongated member pivotally mounted to one of said actuating arms near the extremity thereof, and each elongated member having a guide pin positioned near the end thereof directly opposite said pivotal mounting, and wherein a pair of implement guide brackets is provided corresponding to each actuating arm guide bracket and mounted to said implement to permit registration therewith, each corresponding implement guide bracket having a guide seat for engagement with a portion of one of said guide pins and a C-shaped bracket for engagement with a portion of one of said rectangular keys, and wherein each rectangular key is pivotally mounted to one of said elongated members near the pivotal mounting thereof to said actuating arm.
Claim 10
Dependent Claim
148 words
A quick attachment and release device for releasably attaching a first member to a second member which comprises: a rectangular key having a substantially planar major and a minor dimension pivotally mounted to said first member for rotation about the transverse axis of said key; a C-shaped bracket secured to said second member to permit registration with said rectangular key, and having an inner surface with a maximum inside dimension slightly greater than said major dimension and an opening smaller than said major dimension and greater than said minor dimension to thereby permit entry of said key into said bracket; and means for orienting said rectangular key for passage through said opening of said C-shaped bracket and for pivoting said rectangular key to orient said key with said minor dimension of said rectangular key substantially contiguous with said inner surface of said C-shaped bracket for locked engagement therewith.
Claim 11
Dependent Claim
148 words
A quick attachment and release device for releasably attaching a first member to a second member which comprises: a rectangular key having a substantially planar major and a minor dimension pivotally mounted to said first member for rotation about the transverse axis of said key; a C-shaped bracket secured to said second member to permit registration with said rectangular key, and having an inner surface with a maximum inside dimension slightly greater than said major dimension and an opening smaller than said major dimension and greater than said minor dimension to thereby permit entry of said key into said bracket; and means for orienting said rectangular key for passage through said opening of said C-shaped bracket and for pivoting said rectangular key to orient said key with said minor dimension of said rectangular key substantially contiguous with said inner surface of said C-shaped bracket for locked engagement therewith.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |