US3966868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip straightening apparatus, product and method
Assignee: Individual
•
Filing: 1974-12-09
•
Granted: 1976-06-29
•
Expires: 1994-12-09
Abstract
Abstract The invention relates to the processing of photographic material such as photographic film which has a tendency to curl in roller type photographic processing equipment, without attaching a separate leader portion to the film. After removing the curl from an end portion of the film, it is processed in a roller type photographic processing equipment without curling around the transporting rollers. The invention also provides a method of making this leaderless processing possible. This is performed by deforming a portion of the photographic material so as to prevent the tendency to curl to allow positive selfleading through the roller type processing equipment. Another embodiment of the invention provides a one-piece, partially curled, photographic material wherein curl has been removed from a portion, thus making the film suitable for photographic processing equipment. Another embodiment provides an apparatus for preventing curl in a portion of photographic material.
Inventors
- 👤 Henry F. Hope
- 👤 Stephen F. Hope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:56
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/587; G03B27/588; B; B65; B65H; B65H45/00; B65H45/12; Y; Y10; Y10S; Y10S430/00; Y10S430/131
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
105 words
A method of feeding, without attaching a leader, a strip of photographic material which has a tendency to curl, between successive roll pairs in roll type photographic processing equipment and avoiding curling of said material about said rolls, which comprises feeding the strip between a pair of corrugating means and corrugating an end portion of the strip forming longitudinal corrugations in said end, moving said corrugating means apart and out of engagement with said strip, directly feeding said end portion between at least one following roll pair while continuing to pass a portion of said strip between said corrugating rolls but out of engagement therewith.
Claim 2
Independent Claim
105 words
A method of feeding, without attaching a leader, a strip of photographic material which has a tendency to curl, between successive roll pairs in roll type photographic processing equipment and avoiding curling of said material about said rolls, which comprises feeding the strip between a pair of corrugating means and corrugating an end portion of the strip forming longitudinal corrugations in said end, moving said corrugating means apart and out of engagement with said strip, directly feeding said end portion between at least one following roll pair while continuing to pass a portion of said strip between said corrugating rolls but out of engagement therewith.
Claim 3
Dependent Claim
33 words
The method of claim 1 which comprises the additional step of transporting the photographic material through the rolls of the processing equipment without the corrugated portion of the strip curling about the rolls.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein the corrugating means are rollers.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the corrugations are caused on both sides of the photographic material.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein the corrugated portion is free of detachment perforations.
Claim 7
Dependent Claim
24 words
The method of claim 1 wherein the feeding of the corrugated end portion is carried out without having detached any part of said strip.
Claim 8
Dependent Claim
11 words
The method of claim 1 wherein the corrugating means are platens.
Claim 9
Dependent Claim
11 words
The method of claim 1 wherein the material is undeveloped film.
Claim 10
Dependent Claim
11 words
The method of claim 1 wherein the material is developed film.
Claim 11
Dependent Claim
10 words
The method of claim 1 wherein the material is paper.
Claim 12
Dependent Claim
20 words
The method of claim 1 which comprises applying heat when deforming the end portion of the material by corrugating it.
Claim 13
Dependent Claim
21 words
The method of claim 1 which comprises deforming the end portion of the material by corrugating it, without application of heat.
Claim 14
Dependent Claim
10 words
The method of claim 1 wherein the material is film.
Claim 15
Dependent Claim
10 words
The method of claim 1 wherein the material is paper.
Claim 16
Dependent Claim
12 words
The method of claim 1 which comprises corrugating only the end portion.
Claim 17
Dependent Claim
14 words
The method of claim 15 which comprises impressing the corrugations longitudinally in the material.
Claim 18
Dependent Claim
43 words
The method of claim 1 comprising the additional step of removing from between rolls of said processing equipment, the strip of photographic material having a corrugated portion free from a tendency to curl and integral therewith a portion having a tendency to curl.
Claim 19
Independent Claim
108 words
A method of feeding, without attaching a leader, a strip of photographic material which has a tendency to curl, between successive roll pairs in roll type photographic processing equipment and avoiding curling of said material about said rolls, which comprises feeding the strip between a pair of deforming means and deforming by removing the curl from an end portion, thus forming a straight uncurled leading edge, moving said deforming means apart and out of engagement with said strip, directly feeding said end portion between at least one following roll pair while continuing to pass a portion of said strip between said deforming rolls but out of engagement therewith.
Claim 20
Independent Claim
108 words
A method of feeding, without attaching a leader, a strip of photographic material which has a tendency to curl, between successive roll pairs in roll type photographic processing equipment and avoiding curling of said material about said rolls, which comprises feeding the strip between a pair of deforming means and deforming by removing the curl from an end portion, thus forming a straight uncurled leading edge, moving said deforming means apart and out of engagement with said strip, directly feeding said end portion between at least one following roll pair while continuing to pass a portion of said strip between said deforming rolls but out of engagement therewith.
Claim 21
Dependent Claim
33 words
The method of claim 18 which comprises the additional step of transporting the photographic material through the rolls of the processing equipment without the corrugated portion of the strip curling about the rolls.
Claim 22
Dependent Claim
50 words
The method of claim 19 which comprises the additional step of removing the strip of photographic material having its corrugated portion which does not have a tendency to coil and integral therewith, a portion which still has the tendency to coil, from in between the rolls of the processing equipment.
Claim 23
Dependent Claim
11 words
The method of claim 18 wherein the photographic material is film.
Claim 24
Dependent Claim
15 words
The method of claim 21 wherein the protrusions are on both sides of the material.
Claim 25
Dependent Claim
17 words
The method of claim 18 wherein the corrugations are caused on both sides of the photographic material.
Claim 26
Dependent Claim
31 words
The method of claim 23 which comprises actuating prior to the inserting step, a sensing means sensing the approach of the film to actuate at least one of the corrugating means.
Claim 27
Dependent Claim
21 words
The method of claim 24 wherein the actuating is by contacting the leading side of the film with the sensing means.
Claim 28
Dependent Claim
32 words
the method of claim 24 comprising actuating a sensing means to stop the movement of the corrugating means coming and after removal of the strip out of engagement with the corrugating means.
Claim 29
Dependent Claim
21 words
The method of claim 26 wherein the actuating is by contacting the sensing means with the leading side of the film.
Claim 30
Dependent Claim
12 words
The method of claim 27 wherein the end portion is creased longitudinally.
Claim 31
Dependent Claim
16 words
The method of claim 28 wherein plural parallel longitudinal creases are formed in said end portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |