US3864893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic bobbin loader
Assignee: Individual
•
Filing: 1974-01-30
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Granted: 1975-02-11
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Expires: 1994-01-30
Abstract
Abstract A device for automatically loading bobbin boxes with bobbins. The bobbin boxes are placed on a conveyor which moves until a bobbin box interrupts a light beam causing the conveyor to stop with a bobbin box in proper position for loading. Bobbins are automatically loaded onto a foldable receiving plate placed within the bobbin box until the receiving plate is caused to open and the bobbins are loaded into the bobbin box. Another bobbin box is then moved into position for loading by the conveyor and the cycle is repeated.
Inventors
- 👤 Yoshio Murao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:20
CPC Classifications
B; B65; B65B; B65B19/00; B65B19/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
189 words
Apparatus for automatically loading a bobbin box with bobbins comprising: a vertically movable elevator plate; a receiving plate for the bobbins having two parts pivotally attached to opposite sides of said elevator plate and adapted to fit within a bobbin box; means for placing bobbins on said receiving plate; means for raising and lowering said receiving plate and elevator plate into and out of said bobbin box; a pin directly beneath the receiving plate for maintaining said receiving plate in a closed position whereby the bobbins remain on the receiving plate as the receiving plate is lowered into the bobbin box; means for sensing when the bobbins on said receiving plate reach a predetermined level and causing said receiving plate to be lowered; and means for rotating the pin in one direction when the receiving plate reaches a predetermined lower position in the bobbin box, whereby the weight of the bobbins opens the receiving plate and the bobbins fall into the bobbin box, and for rotating the pin to its original position when the receiving plate is raised to a predetermined upper position whereby the receiving plate is closed.
Claim 2
Dependent Claim
189 words
Apparatus for automatically loading a bobbin box with bobbins comprising: a vertically movable elevator plate; a receiving plate for the bobbins having two parts pivotally attached to opposite sides of said elevator plate and adapted to fit within a bobbin box; means for placing bobbins on said receiving plate; means for raising and lowering said receiving plate and elevator plate into and out of said bobbin box; a pin directly beneath the receiving plate for maintaining said receiving plate in a closed position whereby the bobbins remain on the receiving plate as the receiving plate is lowered into the bobbin box; means for sensing when the bobbins on said receiving plate reach a predetermined level and causing said receiving plate to be lowered; and means for rotating the pin in one direction when the receiving plate reaches a predetermined lower position in the bobbin box, whereby the weight of the bobbins opens the receiving plate and the bobbins fall into the bobbin box, and for rotating the pin to its original position when the receiving plate is raised to a predetermined upper position whereby the receiving plate is closed.
Claim 3
Dependent Claim
71 words
Apparatus as recited in claim 1 in which the means for rotating the pin comprises: a first stationary cam; a second stationary cam spaced vertically from said first stationary cam; a rotatable cam follower for engaging said stationary cam; a rotatable shaft extending vertically within said elevator plate and connected at its lower extremity to said pin; and means for rotating said rotatable shaft when said rotatable cam follower is rotated.
Claim 4
Dependent Claim
39 words
Apparatus as recited in claim 2 in which the means for rotating said rotatable shaft comprises: a first gear connected to said rotatable cam follower; and a second gear connected to said rotatable shaft and engaging said first gear.
References Cited (Backward Citations)
US2786315A
Cited
US3024585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |