US3790424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pull tab apparatus
Assignee: Milliken Research Corp
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Filing: 1972-01-31
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Granted: 1974-02-05
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Expires: 1992-01-31
Abstract
Abstract A method and apparatus to accurately punch openings in a web of material and heat seal tabs thereover to provide easy access to the contents of a package formed therefrom. As the machine performs these operations it is also accumulating a predetermined amount of paper for the next cycle.
Inventors
- 👤 W Young
- 👤 W Quattlebaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:52
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B31; B31B; B31B50/00; B31B50/74; B31B50/81; B31B50/812; B31B50/8122; B31B50/8123; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1304; Y10T156/1309
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
114 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising: a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to simultaneously punch a plurality of holes in said web material on said frame spaced from said accumulator chamber while web material is being accumulated in said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web material, means to supply tabs to said means to seal tabs and means to take up said web material after the tabs have been sealed thereon.
Claim 2
Dependent Claim
114 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising: a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to simultaneously punch a plurality of holes in said web material on said frame spaced from said accumulator chamber while web material is being accumulated in said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web material, means to supply tabs to said means to seal tabs and means to take up said web material after the tabs have been sealed thereon.
Claim 3
Dependent Claim
41 words
The apparatus of claim 1 wherein said material supply means includes a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop.
Claim 4
Dependent Claim
40 words
The apparatus of claim 1 wherein said take-up means includes a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop.
Claim 5
Dependent Claim
41 words
The apparatus of claim 3 wherein said material supply means includes a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop.
Claim 6
Dependent Claim
117 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising:a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to punch holes in said web material on said frame spaced from said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web materiaL, means to supply tabs to said means to seal tabs and means to take up said web material after the tabs have been sealed thereon, said take-up means including a means to intermittently index web material from said accumulator to said punch means.
Claim 7
Dependent Claim
117 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising:a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to punch holes in said web material on said frame spaced from said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web materiaL, means to supply tabs to said means to seal tabs and means to take up said web material after the tabs have been sealed thereon, said take-up means including a means to intermittently index web material from said accumulator to said punch means.
Claim 8
Dependent Claim
50 words
The apparatus of claim 5 wherein said intermittent indexing means includes a pair of rolls continuously driven and spaced from one another, a third roll between said pair of rolls and means to pivot said third roll into operative relationship with one or the other of said pair of rolls.
Claim 9
Dependent Claim
146 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising: a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to punch holes in said web material on said frame spaced from said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web material, means to supply tabs to said means to seal tabs, means to take up said web material after the tabs have been sealed thereon, said material supply means including a means to provide a loop of web material, means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop and means to pretension said web material prior to entering said accumulator chamber.
Claim 10
Dependent Claim
146 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising: a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to punch holes in said web material on said frame spaced from said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web material, means to supply tabs to said means to seal tabs, means to take up said web material after the tabs have been sealed thereon, said material supply means including a means to provide a loop of web material, means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop and means to pretension said web material prior to entering said accumulator chamber.
Claim 11
Dependent Claim
181 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising: a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to punch holes in said web material on said frame spaced from said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web material, means to supply tabs to said means to seal tabs, means to take up said web material after the tabs have been sealed thereon, said take-up means including a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop, said material supply means including a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop and means to pretension said web material prior to entering said accumulator chamber.
Claim 12
Dependent Claim
181 words
Apparatus to provide a roll of web material with pull tabs applied thereon comprising: a frame, web material supply means operably associated with said frame, a web material accumulator chamber on said frame, means to accumulate web material in said accumulator chamber, means to punch holes in said web material on said frame spaced from said accumulator chamber, means spaced from said punch means to seal tabs over the holes punched in said web material, means to supply tabs to said means to seal tabs, means to take up said web material after the tabs have been sealed thereon, said take-up means including a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop, said material supply means including a means to provide a loop of web material and means to increase or decrease the length of said loop upon the detection of certain predetermined conditions of said loop and means to pretension said web material prior to entering said accumulator chamber.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |