Patent US4761197A successfully refreshed from Google Patents.
US4761197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sealing a web of film
Assignee: Baxter International Inc
•
Filing: 1986-07-28
•
Granted: 1988-08-02
•
Expires: 2006-07-28
Abstract
Abstract An apparatus for sealing a web of film including a heater member for melting a portion of the film to create side and chevron seals. A back-up bar is located diametric the heater member. The heater member includes two elongated heater bars and two wing heater bars.
Inventors
- 👤 William C. Christine
- 👤 Josef Schmidt
- 👤 Steffen Lyons
- 👤 Brian Green
- 👤 George J. Herschman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:00
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C66/00; B29C66/004; B29C66/0042; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81431; B29C66/83; B29C66/832; B29C66/8322; B29C66/90; B29C66/91; B29C66/912; B29C66/9121; B29C66/91211; B29C66/91212; B29C66/91231; B29C65/74; B29C65/745; B29C65/7451; B29C66/812; B29C66/8126; B29C66/81264; B29C66/8145; B29C66/81457; B29C66/818; B29C66/8182; B29C66/81821; B29K; B29K2995/00; B29K2995/0037; B29K2995/007; B29L; B29L2031/00; B29L2031/712; B29L2031/7148; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/642; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1378; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
138 words
An apparatus for sealing a web of film comprising: heating means for melting a portion of the web of film including means for creating side seals in the web of film and means for creating chevron seals in the web of film, the means for creating side seals includes a pair of parallel elongated bars, and the means for creating chevron seals includes a wing bar extending from each of the elongated bars, the heating means including three separate heating zones that are heated by three separate heaters, a first wing bar being heated by a first heater, the elongated bars being heated by a second heater, and a second wing bar being heated by a third heater; and means for urging said film against the heating means, said means for urging being located diametric the heating means.
Claim 2
Independent Claim
138 words
An apparatus for sealing a web of film comprising: heating means for melting a portion of the web of film including means for creating side seals in the web of film and means for creating chevron seals in the web of film, the means for creating side seals includes a pair of parallel elongated bars, and the means for creating chevron seals includes a wing bar extending from each of the elongated bars, the heating means including three separate heating zones that are heated by three separate heaters, a first wing bar being heated by a first heater, the elongated bars being heated by a second heater, and a second wing bar being heated by a third heater; and means for urging said film against the heating means, said means for urging being located diametric the heating means.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1, wherein the wing bar extends from the elongated bar at an acute angle.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 wherein the means for urging includes means for severing the web of film.
Claim 5
Dependent Claim
24 words
The apparatus of claim 1 wherein each of said first, second and third heaters includes a heater cartridge for heating a respective heating zone.
Claim 6
Dependent Claim
20 words
The apparatus of claim 4 wherein the first and third heating zones include thermal pins located under the wing bars.
Claim 7
Independent Claim
122 words
An apparatus for sealing a web of film comprising: heating means for contemporaneously creating side seals and chevron seals in a web of film located on a first side of the web of film, the heating means including two parallel heater bars, and a wing bar extending from each of the heater bars at an acute angle, a first wing bar being located in a first heating zone, a second wing bar being located in a third heating zone, and the parallel heater bars being located in a second heating zone, each heating zone including separate means for heating the zone and regulating the temperature of the zone; and a back-up bar located on a second side of said web of film.
Claim 8
Independent Claim
122 words
An apparatus for sealing a web of film comprising: heating means for contemporaneously creating side seals and chevron seals in a web of film located on a first side of the web of film, the heating means including two parallel heater bars, and a wing bar extending from each of the heater bars at an acute angle, a first wing bar being located in a first heating zone, a second wing bar being located in a third heating zone, and the parallel heater bars being located in a second heating zone, each heating zone including separate means for heating the zone and regulating the temperature of the zone; and a back-up bar located on a second side of said web of film.
Claim 9
Dependent Claim
35 words
The apparatus of claim 6 wherein: each wing heater bar is located on a wing member that includes a heater cartridge and thermal pin; and the parallel heater bars include a heater cartridge and thermocouple.
Claim 10
Dependent Claim
34 words
The apparatus of claim 6 wherein: the heating means is secured to a jaw that includes gripper members; and the back-up member is secured to a jaw that includes corresponding spring loaded gripper bars.
Claim 11
Dependent Claim
13 words
The apparatus of claim 7 wherein each wing member includes raised elastomeric pads.
Claim 12
Independent Claim
177 words
An apparatus for sealing a web of film comprising: a first jaw located on a first side of the web of film, the first jaw including gripper members for contacting the surface of the web of film; a heater member secured to the first jaw for contemporaneously creating side and chevron seals in the web of film, the heater member including a pair of parallel elongated hot bars, a wing bar extending from each of the elongated hot bars, and three separate heating zones; each wing bar being located on a wing section that defines a heating zone, and the elongated hot bars defining a heating zone, each wing section includes a heater cartridge and a thermal pin, and the elongated hot bars including a heater cartridge and a thermocouple; a second jaw located on a second side of the web of film, the second jaw including gripper bars for contacting the surface of the web of film; and a back-up member secured to the second jaw for urging the web of film against the heater member.
Claim 13
Independent Claim
177 words
An apparatus for sealing a web of film comprising: a first jaw located on a first side of the web of film, the first jaw including gripper members for contacting the surface of the web of film; a heater member secured to the first jaw for contemporaneously creating side and chevron seals in the web of film, the heater member including a pair of parallel elongated hot bars, a wing bar extending from each of the elongated hot bars, and three separate heating zones; each wing bar being located on a wing section that defines a heating zone, and the elongated hot bars defining a heating zone, each wing section includes a heater cartridge and a thermal pin, and the elongated hot bars including a heater cartridge and a thermocouple; a second jaw located on a second side of the web of film, the second jaw including gripper bars for contacting the surface of the web of film; and a back-up member secured to the second jaw for urging the web of film against the heater member.
Claim 14
Dependent Claim
28 words
The apparatus of claim 10 wherein: the heater bar includes wing sections on which the wing bars are positioned; and each wing section includes a riased rubber pad.
Claim 15
Independent Claim
98 words
A method for creating a container with chevrons comprising the steps of: providing a sealing member having two parallel heater bars and a wing bar extending from each heater bar; providing three separate heating means, a first heating means heating a first wing bar, a second heating means heating the heater bars, and a third heating means heating a second wing bar; separately heating with the heating means the heater bars, the first wing bar and the second wing bar; and contemporaneously creating a side seal and chevron seal in a web of film with the sealing member.
Claim 16
Independent Claim
98 words
A method for creating a container with chevrons comprising the steps of: providing a sealing member having two parallel heater bars and a wing bar extending from each heater bar; providing three separate heating means, a first heating means heating a first wing bar, a second heating means heating the heater bars, and a third heating means heating a second wing bar; separately heating with the heating means the heater bars, the first wing bar and the second wing bar; and contemporaneously creating a side seal and chevron seal in a web of film with the sealing member.
References Cited (Backward Citations)
US3003907A
Cited
US3380646A
Cited
US3473995A
Cited
US3488914A
Cited
US3425185A
Cited
US3599387A
Cited
US3627611A
Cited
US3620884A
Cited
US3775225A
Cited
US4105489A
Cited
US3830681A
Cited
US3845606A
Cited
US3874976A
Cited
US3894381A
Cited
US3925139A
Cited
US3992981A
Cited
US4221101A
Cited
US4387547A
Cited
US4306400A
Cited
US4445960A
Cited
US4510736A
Cited
US4378266A
Cited
US4524567A
Cited
US4512138A
Cited
US4532753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-02 | 1992-02-01 | 1992-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-02 | 1996-02-01 | 1996-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-02 | 2000-02-01 | 2000-08-02 | $7700.00 | Window Closed / Lapsed |