← Back to Patent Explorer
US3981582A Expired / Lapsed US ⏱️ 0.0 years remaining

Microfilm copyboard with document index

Assignee: Bell and Howell Co
•
Filing: 1975-09-30
•
Granted: 1976-09-21
•
Expires: 1995-09-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A copyboard (especially -- although not exclusively -- for microfilm cameras) has a movable document guide which slides diagonally. A counter is mounted on the document guide to display a frame identifying number, which appears adjacent the image in each frame. Since the counter is mounted on the document guide, the number which it displays always appears along side the photographic image, regardless of the original document size. A blip image is also placed on the copyboard to provide a white spot that facilitates automatic searching. When a special operation is performed, the blip image is made longer in order to provide a command signal.

Inventors

  • 👤 George William Bookless

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:34
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6214

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 65 words
A copyboard especially suited for use in a microfilm system, said copyboard comprising a guide member having a digital display means integrally mounted thereon, and guide member mounting means for enabling movement of said guide member and said display means across said copyboard, said guide member mounting means commprising a main guideway and spaced parallel outrigger guideways disposed on opposite sides of said main guideway.
Claim 2
Dependent Claim 65 words
A copyboard especially suited for use in a microfilm system, said copyboard comprising a guide member having a digital display means integrally mounted thereon, and guide member mounting means for enabling movement of said guide member and said display means across said copyboard, said guide member mounting means commprising a main guideway and spaced parallel outrigger guideways disposed on opposite sides of said main guideway.
Claim 3
Dependent Claim 38 words
The copyboard of claim 1 wherein said digital display means comprises a series of number displays having control means individually associated therewith, whereby any suitable digital display may be provided by selective operation of said individual control means.
Claim 4
Dependent Claim 70 words
The copyboard of claim 1 wherein said main guideway comprises a trough having diametrically opposed and offset sections disposed on opposite sides of said trough to form rails or paths, and a slide having edges which ride in the offset sections as said guide member and said slide move back and forth in said trough, said digital display being housed in said trough member and displayed through said guide member.
Claim 5
Dependent Claim 24 words
The copyboard of claim 3 wherein said guide member mounting means is oriented to cause said guide member to move diagonally across said copyboard.
Claim 6
Dependent Claim 29 words
The copyboard of claim 1 and means for selectively displaying a blip mark image adjacent a document, to be photocopied onto microfilm at a specific location adjacent said document.
Claim 7
Dependent Claim 30 words
The copyboard of claim 5 wherein said blip mark image is formed on a plate having a leaf which may be repositioned to change the size of said blip mark.
Claim 8
Dependent Claim 22 words
The copyboard of claim 5 wherein said blip mark is formed by a combination of a permanent image and an add-on image.
Claim 9
Dependent Claim 39 words
The copyboard of claim 7 wherein said permanent image is formed on one leaf of a hinged-together pair of spring biased plates and said add-on image is formed on the back of the other of the pair of plates.
Claim 10
Dependent Claim 32 words
The copyboard of claim 7 wherein the permanent image is formed on or permanently mounted to said copyboard and said add-on image is an electrically illuminated area immediately adjacent said permanent image.
Claim 11
Dependent Claim 172 words
The copyboard of claim 1 wherein said digital display means comprises a series of number displays, each number display having control means individually associated therewith, whereby any suitable series of digits may be displayed by selective operation of said individual control means, said main guideway comprising a channel having diametrically opposed and offset sections disposed on opposite sides thereof to form outrigger rails or paths, and a housing member having side members which ride in the offset sections as said guide member moves back and forth in said channel, said digital display being supported by said housing member and displayed through said guide member, whereby said guide member and digital display means are oriented to cause said guide member and display means to move diagonally across said copyboard, means for selectively displaying a blip mark image adjacent a document, said blip means being located to be photocopied onto microfilm at a specific location adjacent said document, said blip mark being formed by a combination of a permanent image and an add-on image.

References Cited (Backward Citations)

US1743310A Cited
US3710696A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-09-21 1980-03-22 1980-09-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-09-21 1984-03-22 1984-09-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-09-21 1988-03-22 1988-09-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag