US3589640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film reel and reel extension
Assignee: Individual
•
Filing: 1969-12-30
•
Granted: 1971-06-29
•
Expires: 1989-12-30
Abstract
Abstract An annular disc has an annular depression extending from its inside circumference to a shoulder. The shoulder extends in a circle around the inside surface of the disc. The disc can be attached to a reel sidewall by means of the annular depression and the shoulder engaging the circumference of the reel sidewall. The disc has a plurality of arcuate slots forming concentric breakaway circles. It also has a loading slot extending through it from its inner to its outer circumference. By being constructed integrally with a core, the annular disc can also be a sidewall of a reel.
Inventors
- 👤 George H Mapes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:48
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; Y; Y10; Y10S; Y10S242/00; Y10S242/912
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
77 words
For attachment to the sidewall of a reel, a sidewall extension comprising: a circular, annular disc having a generally flat inside surface and an outside surface; said disc having a plurality of breakaway circles of varying diameters, all of said circles being generally concentric with the outer circumference of said circles being generally concentric with the outer circumference of said disc; said disc having attachment means whereby it can be attached to the sidewall of a reel.
Claim 2
Dependent Claim
77 words
For attachment to the sidewall of a reel, a sidewall extension comprising: a circular, annular disc having a generally flat inside surface and an outside surface; said disc having a plurality of breakaway circles of varying diameters, all of said circles being generally concentric with the outer circumference of said circles being generally concentric with the outer circumference of said disc; said disc having attachment means whereby it can be attached to the sidewall of a reel.
Claim 3
Dependent Claim
59 words
The device of claim 1 which also comprises: each of said breakaway circles comprising an interruption in said flat inside surface of said disc; said interruption having an inner edge and an outer edge with respect to the geometric center of said disc; said inner edge tapering gradually upwardly from said flat inside surface and towards said outside surface.
Claim 4
Dependent Claim
23 words
The device of claim 2 which also comprises: a loading slot extending through said disc from its inner circumference to its outer circumference.
Claim 5
Dependent Claim
28 words
The device of claim 2 which also comprises: said interruption comprising a plurality of arcuate slots in said disc, adjacent slots being separated by a solid wall portion.
Claim 6
Dependent Claim
82 words
The device of claim 1 in which said attachment means comprises: an annular depression in said generally flat inside surface extending from the inner circumference of said disc to a shoulder; said shoulder joining the surface of said annular depression with said generally flat inside surface; said shoulder defining a circle which is generally concentric with said outer circumference of said disc, and having a diameter comparable to the diameter of the reel to which said sidewall extension is to be attached.
Claim 7
Dependent Claim
82 words
The device of claim 2 in which said attachment means comprises: an annular depression in said generally flat inside surface extending from the inner circumference of said disc to a shoulder; said shoulder joining the surface of said annular depression with said generally flat inside sUrface; said shoulder defining a circle which is generally concentric with said outer circumference of said disc, and having a diameter comparable to the diameter of the reel to which said sidewall extension is to be attached.
Claim 8
Dependent Claim
82 words
The device of claim 4 in which said attachment means comprises: an annular depression in said generally flat inside surface extending from the inner circumference of said disc to a shoulder; said shoulder joining the surface of said annular depression with said generally flat inside surface; said shoulder defining a circle which is generally concentric with said outer circumference of said disc, and having a diameter comparable to the diameter of the reel to which said sidewall extension is to be attached.
Claim 9
Dependent Claim
42 words
The device of claim 5 in which said attachment means also comprises: said shoulder slanting inwardly from said annular depression at an acute angle to the surface of said depression and at an acute angle to said inside surface of said disc.
Claim 10
Dependent Claim
42 words
The device of claim 6 in which said attachment means also comprises: said shoulder slanting inwardly from said annular depression at an acute angle to the surface of said depression and at an acute angle to said inside surface of said disc.
Claim 11
Dependent Claim
110 words
The device of claim 3 in which said attachment means comprises: an annular depression in said generally flat inside surface extending from the inner circumference of said disc to a shoulder; said shoulder joining the surface of said annular depression with said generally flat inside surface; said shoulder defining a circle, generally concentric with said outer circumference of said disc, and having a diameter comparable to the diameter of the reel to which said sidewall extension is to be attached; said shoulder slanting inwardly from said annular depression at an acute angle to the surface of said depression and at an acute angle to said inside surface of said disc.
Claim 12
Dependent Claim
91 words
For attachment to the sidewall of a reel, a sidewall extension comprising: a circular, annular disc having a generally flat inside surface, an annular depression in said generally flat inside surface extending from the inner circumference of said disc to a shoulder; said shoulder joining the surface of said annular depression with said generally flat inside surface; said shoulder defining a circle generally concentric with the outer circumference of said disc, and having a diameter comparable to the diameter of the reel to which said sidewall extension is to be attached.
Claim 13
Dependent Claim
91 words
For attachment to the sidewall of a reel, a sidewall extension comprising: a circular, annular disc having a generally flat inside surface, an annular depression in said generally flat inside surface extending from the inner circumference of said disc to a shoulder; said shoulder joining the surface of said annular depression with said generally flat inside surface; said shoulder defining a circle generally concentric with the outer circumference of said disc, and having a diameter comparable to the diameter of the reel to which said sidewall extension is to be attached.
Claim 14
Dependent Claim
37 words
The device of claim 11 in which said shoulder slants inwardly from said annular depression at an acute angle to the surface of said depression and at an acute angle to said inside surface of said disc.
Claim 15
Dependent Claim
23 words
The device of claim 12 which also comprises: a loading slot extending through said disc from its inner circumference to its outer circumference.
Claim 16
Dependent Claim
36 words
A reel comprising: a core; sidewalls, each having a generally flat inside surface and an outside surface; each of said sidewalls having a plurality of breakaway circles being generally concentric with the circumference of said core.
Claim 17
Dependent Claim
36 words
A reel comprising: a core; sidewalls, each having a generally flat inside surface and an outside surface; each of said sidewalls having a plurality of breakaway circles being generally concentric with the circumference of said core.
Claim 18
Dependent Claim
59 words
The device of claim 14 which also comprises: each of said breakaway circles comprising an interruption in said flat inside surface of said sidewall; said interruption having an inner edge and an outer edge with respect to said core; said inner edge tapering gradually upwardly from said flat inside surface and towards said outside surface of said reel sidewall.
Claim 19
Dependent Claim
28 words
The device of claim 15 which also comprises: said interruption comprising a plurality of arcuate slots in said sidewall, adjacent slots being separated by a solid wall portion.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |