← Back to Patent Explorer
US3329944A Expired / Lapsed US ⏱️ 0.0 years remaining

Sequential access data store

Assignee: NCR Voyix Corp
•
Filing: 1966-06-06
•
Granted: 1967-07-04
•
Expires: 1986-06-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Merton C Leinberger
  • 👤 Cecil H Burns
  • 👤 Robert A Melnick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 06:55
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/32; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5591

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 168 words
IN AN ARRANGEMENT FOR PROVIDING A CONTINUOUS CHANNEL IN A SEQUENTIAL ACCESS DATA STORE, THE COMBINATION COMPRISING: DATA STORAGE MEANS COMPRISING A CIRCULAR RECORD MEMBER CAPABLE OF STORING DATA ON AN ANNULAR RECORD SURFACE THEREOF; TRANSDUCING MEANS INCLUDING A PLURALITY OF TRANSDUCERS FOR COOPERATING WITH RESPECTIVE TANGENTIAL SECTIONS OF SAID RECORD SURFACE FOR READING AND WRITING DATA, EACH OF SAID TRANSDUCERS COMPRISING A SET OF SPACED READ AND WRITE HEADS AND INDIVIDUAL MOUNTING MEANS THEREFORE TO MAINTAIN READ AND WRITE HEADS OF EACH TRANSDUCER IN FIXED SPACED RELATIONSHIP RELATIVE TO ONE ANOTHER; INDIVIDUALLY MOVABLE SUPPORT MEANS FOR EACH TRANSDUCER DISPODED CIRCUMFERENTIALLY ABOUT SAID RECORD MEMBER FOR MOVEMENT ALONG CIRCUMFERENTIALLY SPACED PATHS, EACH OF SAID MOVABLE SUPPORT MEANS BEING CONSTRUCTED AND ARRANGED TO BE MOVED RECTILINEARLY TRANSVERSELY TO SAID RECORD SURFACE ALONG SAID CIRCUMFERENTIALLY SPACED PATHS TO PROVIDE FOR OVERLAPPING TRANSVERSE MOVEMENT OF SAID MOUNTING MEANS WHEREBY SAID READ AND WRITE HEADS OF SAID PLURALITY OF TRANSDUCER ARE CAPABLE OF COOPERATING WITH THE ENTIRE RECORD SURFACE OF RESPECTIVE TANGENTIAL
Claim 2
Dependent Claim 168 words
IN AN ARRANGEMENT FOR PROVIDING A CONTINUOUS CHANNEL IN A SEQUENTIAL ACCESS DATA STORE, THE COMBINATION COMPRISING: DATA STORAGE MEANS COMPRISING A CIRCULAR RECORD MEMBER CAPABLE OF STORING DATA ON AN ANNULAR RECORD SURFACE THEREOF; TRANSDUCING MEANS INCLUDING A PLURALITY OF TRANSDUCERS FOR COOPERATING WITH RESPECTIVE TANGENTIAL SECTIONS OF SAID RECORD SURFACE FOR READING AND WRITING DATA, EACH OF SAID TRANSDUCERS COMPRISING A SET OF SPACED READ AND WRITE HEADS AND INDIVIDUAL MOUNTING MEANS THEREFORE TO MAINTAIN READ AND WRITE HEADS OF EACH TRANSDUCER IN FIXED SPACED RELATIONSHIP RELATIVE TO ONE ANOTHER; INDIVIDUALLY MOVABLE SUPPORT MEANS FOR EACH TRANSDUCER DISPODED CIRCUMFERENTIALLY ABOUT SAID RECORD MEMBER FOR MOVEMENT ALONG CIRCUMFERENTIALLY SPACED PATHS, EACH OF SAID MOVABLE SUPPORT MEANS BEING CONSTRUCTED AND ARRANGED TO BE MOVED RECTILINEARLY TRANSVERSELY TO SAID RECORD SURFACE ALONG SAID CIRCUMFERENTIALLY SPACED PATHS TO PROVIDE FOR OVERLAPPING TRANSVERSE MOVEMENT OF SAID MOUNTING MEANS WHEREBY SAID READ AND WRITE HEADS OF SAID PLURALITY OF TRANSDUCER ARE CAPABLE OF COOPERATING WITH THE ENTIRE RECORD SURFACE OF RESPECTIVE TANGENTIAL

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-03 1971-01-02 1971-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-03 1975-01-02 1975-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-03 1979-01-02 1979-07-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag