US4909425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guiding device for folded film
Assignee: PDC PHARMACEUTICAL SYSTEMS Inc
•
Filing: 1987-05-20
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Granted: 1990-03-20
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Expires: 2007-05-20
Abstract
Abstract A device for guiding a web of flexible film that has been folded back upon itself so as to maintain the edges of the web of film precisely positioned for subsequent sealing. The device includes a smooth support plate positioned so as to be received between two folds of the web of film with pressure being applied to hold the folds against the plate by means of rollers. The rollers are mounted to maintain the folds against the support plate and to assume different orientations relative to the direction of movement of the web.
Inventors
- 👤 Etienne Susini
- 👤 Pierre Soubrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:26
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/032; B65H23/038; B29; B29C; B29C65/00; B29C65/78; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/49; B65H45/00; B65H45/02; B65H45/06; B65H45/08; B65H45/09; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/114; B29C66/13; B29C66/133
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
93 words
A device for guiding a web of flexible film folded back on itself and driven into displacement in a longitudinal direction of the film comprising a frame, a smooth support plate affixed to the frame and positioned to be received between two folds of the web of film, and at least one roller carried by the frame on each side of the support plate, the rollers being mounted to maintain the folds of the film against the support plate and to assume different orientations relative to the direction of movement of the film.
Claim 2
Independent Claim
93 words
A device for guiding a web of flexible film folded back on itself and driven into displacement in a longitudinal direction of the film comprising a frame, a smooth support plate affixed to the frame and positioned to be received between two folds of the web of film, and at least one roller carried by the frame on each side of the support plate, the rollers being mounted to maintain the folds of the film against the support plate and to assume different orientations relative to the direction of movement of the film.
Claim 3
Dependent Claim
15 words
The guiding device of claim 1 including means for limiting the orientation of the rollers.
Claim 4
Dependent Claim
40 words
The guiding device of claim 2 wherein the means for limiting the orientation of the rollers includes a sector fixed to the rollers in a direction transverse to the pivoting shaft and connection means between the sector and the frame.
Claim 5
Dependent Claim
14 words
The guiding device of claim 1 wherein the rollers include a movable peripheral reed.
Claim 6
Dependent Claim
35 words
The guiding device of claim 1 wherein the rollers are mounted on a support, movable in a direction transverse to the support plate, the support being urged back toward the support plate by elastic means.
Claim 7
Dependent Claim
14 words
The guiding device of claim 5 wherein the elastic means includes a helix-shaped spring.
Claim 8
Dependent Claim
36 words
The guiding device of claim 1 including orientation means for orienting the rollers including a pivoting shaft that extends in a direction transverse to the support plate and the rollers are pivotally mounted in that shaft.
Claim 9
Dependent Claim
27 words
The guiding device of claim 1 including a film lug piece that extends in a direction transverse to the support plate on each side of the plate.
Claim 10
Dependent Claim
30 words
The guiding device of claim 1 wherein the frame includes means for adjusting the position of the frame in a direction transverse to the direction of movement of the film.
Claim 11
Independent Claim
105 words
An apparatus for guiding a folded web of film that is fed through a packaging machine comprising: a support plate for being received between folds of the web of film as the web of film is fed through a portion of the packaging machine, the apparatus including a frame, the support plate being secured to the frame; and at least one roller for exerting a pressure on the web of film against the support plate, the roller being coupled to means for adjustably orienting the roller relative to a direction of movement of the film, the means for adjustably orienting being coupled to the frame.
Claim 12
Independent Claim
105 words
An apparatus for guiding a folded web of film that is fed through a packaging machine comprising: a support plate for being received between folds of the web of film as the web of film is fed through a portion of the packaging machine, the apparatus including a frame, the support plate being secured to the frame; and at least one roller for exerting a pressure on the web of film against the support plate, the roller being coupled to means for adjustably orienting the roller relative to a direction of movement of the film, the means for adjustably orienting being coupled to the frame.
Claim 13
Dependent Claim
21 words
The apparatus of claim 10 including two rollers, one roller being located on each of a side of the support plate.
Claim 14
Dependent Claim
13 words
The apparatus of claim 10 including means for limiting the means for orienting.
Claim 15
Dependent Claim
20 words
The apparatus of claim 10 wherein the roller is mounted on a shaft of rotation parallel to the support plate.
Claim 16
Dependent Claim
37 words
The apparatus of claim 13 wherein the roller is mounted on a roller support movable in a direction perpendicular to the support plate, and the roller support is biased back to the support plate by elastic means.
Claim 17
Independent Claim
81 words
An apparatus for guiding a folded web of film that is fed past the apparatus for guiding comprising: a frame; a support plate, extending from the frame, the support plate being received between folded sides of the web of film as the film is fed past the apparatus; two pressure means extending from opposite ends of the frame, for urging opposite sides of the film against the support plate; and means for orienting the pressure means coupled to the pressure means.
Claim 18
Independent Claim
81 words
An apparatus for guiding a folded web of film that is fed past the apparatus for guiding comprising: a frame; a support plate, extending from the frame, the support plate being received between folded sides of the web of film as the film is fed past the apparatus; two pressure means extending from opposite ends of the frame, for urging opposite sides of the film against the support plate; and means for orienting the pressure means coupled to the pressure means.
Claim 19
Dependent Claim
21 words
The apparatus of claim 15 wherein the pressure means are coupled to means for limiting the orientation of the pressure means.
Claim 20
Dependent Claim
12 words
The apparatus of claim 15 wherein each pressure means includes a roller.
Claim 21
Dependent Claim
20 words
The apparatus of claim 17 wherein each pressure means includes a spring for urging the roller toward the support plate.
Claim 22
Dependent Claim
18 words
The apparatus of claim 15 including a lug that extends in a direction transverse to the support plate.
References Cited (Backward Citations)
DE517892C
Cited
FR680497A
Cited
US2467879A
Cited
US3147898A
Cited
US3322604A
Cited
US3334466A
Cited
GB1238937A
Cited
US3545166A
Cited
US3553934A
Cited
DE1774177A1
Cited
US3587958A
Cited
DE1944633A1
Cited
US3754064A
Cited
US3709418A
Cited
FR2136840A1
Cited
US3729359A
Cited
US3775225A
Cited
DE2213547A1
Cited
US3884131A
Cited
DE2254372A1
Cited
FR2264310A1
Cited
US4007865A
Cited
US4117647A
Cited
US4103473A
Cited
US4303189A
Cited
JPS604452A
Cited
US4517789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |