Patent US4563228A successfully refreshed from Google Patents.
US4563228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for regulating the permeability of wrapping material for rod-shaped smokers products
Assignee: Koerber Technologies GmbH
•
Filing: 1977-12-27
•
Granted: 1986-01-07
•
Expires: 1997-12-27
Abstract
Abstract A continuous web which is drawn off a roll is perforated on its way toward the wrapping station of a machine for the making of plain or filter tipped smokers' products or filter rod sections. The perforating device is adjustable by a control system which receives signals from a photoelectronic testing unit serving to monitor the permeability of successive increments of the web between the perforating device and the wrapping station. The combined cross-sectional area of holes per unit area of the web is increased or reduced, depending upon whether the monitored permeability is less than or exceeds a preselected optimum permeability.
Inventors
- 👤 Elke Luders
- 👤 Kurt-Eckhard Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:27
CPC Classifications
A; A24; A24C; A24C5/00; A24C5/32; A24C5/34; A24C5/3412; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/12; Y10T156/1304; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T83/00; Y10T83/04; Y10T83/0481; Y10T83/141; Y10T83/145; Y10T83/525; Y10T83/533
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
118 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web; monitoring the permeability of the running web ahead of said station; comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web when the monitored permeability deviates from said predetermined value.
Claim 2
Independent Claim
118 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web; monitoring the permeability of the running web ahead of said station; comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web when the monitored permeability deviates from said predetermined value.
Claim 3
Dependent Claim
17 words
A method as defined in claim 1, wherein said step of making holes precedes said monitoring step.
Claim 4
Dependent Claim
22 words
A method as defined in claim 1, wherein said step of making holes includes removing portions of the material of said web.
Claim 5
Dependent Claim
47 words
A method as defined in claim 1, wherein said monitoring step comprises directing a beam of light against one side of the web and measuring the quantity of light which passes through successive increments of the web, such quantity being indicative of permeability of the respective increments.
Claim 6
Dependent Claim
33 words
A method as defined in claim 1, wherein said fillers together constitute a continuous rod-like filler and the material of said web is at least slightly porous prior to said hole making step.
Claim 7
Dependent Claim
133 words
In a machine for converting a running web of wrapping material into tubular wrappers surrounding the fillers of rod-shaped articles which constitute or form part of smokers' products, the combination of a source of wrapping material; means for draping the web around said fillers; means for advancing the web from said source to said draping means; adjustable perforating means including means for making holes in the material of said running web; means for monitoring the permeability of the running web intermediate said source and said draping means; signal generating means for comparing the results of monitoring with a predetermined value denoting the desired permeability of the running web; and means for adjusting said perforating means in response to signals furnished by said comparing means when the monitored permeability deviates from said predetermined value.
Claim 8
Dependent Claim
133 words
In a machine for converting a running web of wrapping material into tubular wrappers surrounding the fillers of rod-shaped articles which constitute or form part of smokers' products, the combination of a source of wrapping material; means for draping the web around said fillers; means for advancing the web from said source to said draping means; adjustable perforating means including means for making holes in the material of said running web; means for monitoring the permeability of the running web intermediate said source and said draping means; signal generating means for comparing the results of monitoring with a predetermined value denoting the desired permeability of the running web; and means for adjusting said perforating means in response to signals furnished by said comparing means when the monitored permeability deviates from said predetermined value.
Claim 9
Dependent Claim
18 words
The combination of claim 6, wherein said perforating means is disposed intermediate said monitoring means and said source.
Claim 10
Dependent Claim
20 words
The combination of claim 6, wherein said perforating means includes means for removing portions of the material of said web.
Claim 11
Dependent Claim
44 words
The combination of claim 6, wherein said monitoring means includes means for directing a beam of light against one side of the web and means for transmitting to said comparing means signals denoting the quantity of light passing through successive increments of the web.
Claim 12
Dependent Claim
28 words
The combination of claim 6, further comprising a source of reference signals representing said predetermined value, said last mentioned source having an output connected with said comparing means.
Claim 13
Independent Claim
130 words
A Method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web when the continuously monitored permeability deviates from said predetermined value.
Claim 14
Independent Claim
130 words
A Method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web when the continuously monitored permeability deviates from said predetermined value.
Claim 15
Independent Claim
138 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station by optically scanning successive increments of the web; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web when the continuously monitored permeability deviates from said predetermined value.
Claim 16
Independent Claim
138 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station by optically scanning successive increments of the web; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web when the continuously monitored permeability deviates from said predetermined value.
Claim 17
Independent Claim
181 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continously monitoring the permeability of the running web ahead of said station by optically scanning successive increments of the web by emitting a beam of light from a light emitting diode, said beam first being optically expanded to illuminate the full width of said web and then, after passing through the web, being focused upon a photo diode; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional areas of holes per unit area of holes per unit area of the material of the running web when the continuously monitored permeability deviates from said predetermined value.
Claim 18
Independent Claim
181 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continously monitoring the permeability of the running web ahead of said station by optically scanning successive increments of the web by emitting a beam of light from a light emitting diode, said beam first being optically expanded to illuminate the full width of said web and then, after passing through the web, being focused upon a photo diode; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional areas of holes per unit area of holes per unit area of the material of the running web when the continuously monitored permeability deviates from said predetermined value.
Claim 19
Independent Claim
162 words
A method of regulating the permeability of a running web of wrapping material which is coverted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station by optically scanning successive increments of the web by emitting a beam of light from a light emitting diode; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web by altering the rate at which said holes are burned in said web when the continuously monitored permeability deviates from said predetermined value.
Claim 20
Independent Claim
162 words
A method of regulating the permeability of a running web of wrapping material which is coverted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station by optically scanning successive increments of the web by emitting a beam of light from a light emitting diode; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web by altering the rate at which said holes are burned in said web when the continuously monitored permeability deviates from said predetermined value.
Claim 21
Independent Claim
189 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station by opitcally scanning successive increments of the web by emitting a beam of light from a light emitting diode, said beam first being optically expanded to illumiante the full width of said web and, then, after passing through the web, being focussed upon a photo diode; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web by altering the rate at which said holes are burned in said web when the continuously monitored permeability deviates from said predetermiend value.
Claim 22
Independent Claim
189 words
A method of regulating the permeability of a running web of wrapping material which is converted into tubular wrappers surrounding the fillers of rod-shaped articles constituting or forming part of smokers' products, comprising the steps of advancing the web and the fillers to a wrapping station; draping the running web around the fillers at said station; making holes in the material of the running web by generating sparks which burn holes in said web; continuously monitoring the permeability of the running web ahead of said station by opitcally scanning successive increments of the web by emitting a beam of light from a light emitting diode, said beam first being optically expanded to illumiante the full width of said web and, then, after passing through the web, being focussed upon a photo diode; continuously comparing the monitored permeability with a predetermined value denoting the desired permeability of the web; and changing the combined cross-sectional area of holes per unit area of the material of the running web by altering the rate at which said holes are burned in said web when the continuously monitored permeability deviates from said predetermiend value.
References Cited (Backward Citations)
US2994783A
Cited
US3167641A
Cited
US3283636A
Cited
US3351740A
Cited
US3622751A
Cited
US4046614A
Cited
US4090826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |