Patent US4506494A successfully refreshed from Google Patents.
US4506494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packed bag cutter
Assignee: TSURUTA SHOJI KK
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Filing: 1983-04-18
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Granted: 1985-03-26
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Expires: 2003-04-18
Abstract
Abstract A cutter is provided with a pair of squeezing rolls which is oppositely located and horizontally movable, and a pair of heat sealing means which is oppositely located under the squeezing rolls at a distance necessary for heat sealing and horizontally movable. A cutting means is provided immediately underneath the heat sealing means at a distance equivalent to the width of a sealed portion. The pair of squeezing rolls is provided with a means to intermittently rotate the rolls to move a packed bag.
Inventors
- 👤 Mamoru Shimoyama
- 👤 Isamu Hoshina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:23
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/32; B65B9/00; B65B9/10; B65B9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A packaging machine for intermittently feeding a tubular film material, filling it with a substance to be packaged and sub-dividing it into individual packages, which machine comprises: (a) a pair of pinching rolls positioned opposite each other in the upper region of said machine and movable perpendicularly toward and away from said tubular film; (b) a pair of heat-sealing means positioned opposite each other, substantially spaced from and beneath said pinching rolls and movable perpendicularly toward and away from said tubular film; (c) a pair of cooling-cutting means positioned opposite each other, spaced from and beneath said heat-sealing means at a distance corresponding to the width of a sealed portion of tubular film and movable perpendicularly toward and away from said tubular film; and (d) means for rotatingly driving said pinching rolls alternately, first a distance corresponding to the positioning of said tubular film in juxtaposition with said heat-sealing means, and then a distance corresponding to the width of the sealed portion of said tubular film.
Claim 2
Dependent Claim
166 words
A packaging machine for intermittently feeding a tubular film material, filling it with a substance to be packaged and sub-dividing it into individual packages, which machine comprises: (a) a pair of pinching rolls positioned opposite each other in the upper region of said machine and movable perpendicularly toward and away from said tubular film; (b) a pair of heat-sealing means positioned opposite each other, substantially spaced from and beneath said pinching rolls and movable perpendicularly toward and away from said tubular film; (c) a pair of cooling-cutting means positioned opposite each other, spaced from and beneath said heat-sealing means at a distance corresponding to the width of a sealed portion of tubular film and movable perpendicularly toward and away from said tubular film; and (d) means for rotatingly driving said pinching rolls alternately, first a distance corresponding to the positioning of said tubular film in juxtaposition with said heat-sealing means, and then a distance corresponding to the width of the sealed portion of said tubular film.
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) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |