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US4533164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for knotting automatically the openings of flexible containers
Assignee: Individual
•
Filing: 1983-04-22
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Granted: 1985-08-06
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Expires: 2003-04-22
Abstract
Abstract A movable shuttle is provided for hooking the loop of a cord and a pneumatic cylinder is connected to the shuttle mount which reciprocates between limit switches for transporting the hooked loop and the material about which the loop is formed to a transfer station; at the transfer station, a pivoting arm is provided to interact with the shuttle hook to disengage the loop and deposit the loop on a storage arm; a mechanism is also provided for folding a web of material into multiple longitudinal folds progressively by means of forming members disposed along a narrowing transport path for the material to be folded.
Inventors
- 👤 Angel Lorenzo Barroso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:24
CPC Classifications
A; A22; A22C; A22C11/00; A22C11/12; A22C13/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
An apparatus for knotting openings in flexible containers such as sausage skins including means for forming a loop with a string, the improvement comprising: hook means for engaging a loop which is attached to a container, means for moving said hook means with reciprocating motion along the path between a loop engaging and a loop discharging position, means for discharging a loop from said hook means when in said loop discharging position onto a storage means.
Claim 2
Independent Claim
76 words
An apparatus for knotting openings in flexible containers such as sausage skins including means for forming a loop with a string, the improvement comprising: hook means for engaging a loop which is attached to a container, means for moving said hook means with reciprocating motion along the path between a loop engaging and a loop discharging position, means for discharging a loop from said hook means when in said loop discharging position onto a storage means.
Claim 3
Dependent Claim
20 words
The invention as claimed in claim 1 wherein said hook means includes a shuttle hook movably mounted on a carriage.
Claim 4
Dependent Claim
54 words
The invention as claimed in claim 2 wherein said carriage includes a lever arm connected to said shuttle hook so as to be pivotable about an axis in response to movement of said shuttle hook, said apparatus including a limit means engageable by said lever arm when said shuttle hook is engaging a loop.
Claim 5
Dependent Claim
36 words
The invention as claimed in claim 3 wherein said shuttle hook is movable between a retracted and an extended position on said carriage and spring means are provided for urging said hook towards said retracted position.
Claim 6
Dependent Claim
31 words
The invention as claimed in claim 1 wherein said means for moving is a pneumatic piston and cylinder device with said piston having a rod operatively connected to said hook means.
Claim 7
Dependent Claim
27 words
The invention as claimed in claim 5 wherein a pair of limit means are provided for reversing the direction of movement of said piston in said cylinder.
Claim 8
Dependent Claim
21 words
The invention as claimed in claim 1 wherein said storage means is displaceable along an axis to vary said discharging position.
Claim 9
Dependent Claim
23 words
An apparatus for use with the invention of claim 1 including means for making multiple longitudinal folds in a web of flexible material.
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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) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |