Patent US3693580A successfully refreshed from Google Patents.
US3693580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory board
Assignee: Individual
•
Filing: 1971-08-27
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Granted: 1972-09-26
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Expires: 1991-08-27
Abstract
Abstract A memory board having a column of items listed on its face and having an individual rotary indicator or pointer positioned abreast of each item for rotary movement between angular positions in which each pointer may either be angularly positioned to designate its associated item or else placed in an inoperative position. The board is formed with a rearwardly opening groove which is bridged by a plurality of relatively spaced apart bearing strips defining internal bearing surfaces disposed on a common cylinder having its cylindrical axis forwardly of and parallel to the board, the opposite circumferential ends of said strips being connected to the board at opposite sides of the slot. Rotary indicators having pointers projecting through the spaces between adjoining bearing strips have oppositely directed co-axial bearing portions journalled in relatively adjacent bearing strips respectively. The distances between the circumferentially directed ends of the respective bearing strips are somewhat less than the diameters of the bearings to be received therein, and the respective indicators and their said bearings are of annular resiliently deformable construction, whereby they may be snap-fitted into operative positions in the bearing strips.
Inventors
- 👤 Walther Thierer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:50
CPC Classifications
G; G09; G09D; G09D1/00; Y; Y10; Y10S; Y10S16/00; Y10S16/13
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
237 words
A memory board comprising a flat panel having a front face and a rear face and formed with a groove of uniform width therethrough; a plurality of relatively spaced arcuate bearing strips extending across said groove and connected to said panel at the opposite sides of said groove, each said bearing strip being slightly in excess of 180* in angular extent, said bearing strips having internal surfaces disposed on a common cylinder spaced forwardly from the front face of said panel; a plurality of rotary indicators supported between adjacent said bearing strips for independent rotary movement about said axis; each said indicator comprising an annular resiliently deformable member having oppositely projecting coaxial bearings journalled in adjacent said bearing strips, said indicator projecting radially between and in rotary axial engagement with said adjacent bearing strips to axially position the respective indicators; the angularly opposed ends of each of the said bearing strips being spaced apart a distance slightly less than the diameter of said bearings, said indicators being of annular configuration and resiliently diametricalLy deformable to permit their diametrical insertion between said opposed ends and their subsequent snapfitting within the respective bearing strips, said panel having a column of indicia thereon parallel to the length of said groove and in registry with the respective said indicators, and radially outwardly directed indicating means on said respective indicators for rotary movement with said indicators toward and away from said indicia.
Claim 2
Dependent Claim
237 words
A memory board comprising a flat panel having a front face and a rear face and formed with a groove of uniform width therethrough; a plurality of relatively spaced arcuate bearing strips extending across said groove and connected to said panel at the opposite sides of said groove, each said bearing strip being slightly in excess of 180* in angular extent, said bearing strips having internal surfaces disposed on a common cylinder spaced forwardly from the front face of said panel; a plurality of rotary indicators supported between adjacent said bearing strips for independent rotary movement about said axis; each said indicator comprising an annular resiliently deformable member having oppositely projecting coaxial bearings journalled in adjacent said bearing strips, said indicator projecting radially between and in rotary axial engagement with said adjacent bearing strips to axially position the respective indicators; the angularly opposed ends of each of the said bearing strips being spaced apart a distance slightly less than the diameter of said bearings, said indicators being of annular configuration and resiliently diametricalLy deformable to permit their diametrical insertion between said opposed ends and their subsequent snapfitting within the respective bearing strips, said panel having a column of indicia thereon parallel to the length of said groove and in registry with the respective said indicators, and radially outwardly directed indicating means on said respective indicators for rotary movement with said indicators toward and away from said indicia.
Claim 3
Dependent Claim
53 words
A memory board as defined in claim 1, wherein said radially outwardly directed indicating means comprise radially directed pointers projecting through said slots and substantially outwardly beyond the outer surfaces of said bearing strips to function as actuating arms for use in manually rotating the said indicators between their operative and inoperative positions.
Claim 4
Dependent Claim
43 words
A memory board as defined in claim 1, wherein said pointer of each indicator is axially coextensive with the main body of said indicator whereby to function as a pilot for guiding said main body accurately into position between relatively adjacent bearing strips.
Claim 5
Dependent Claim
63 words
A memory board as defined in claim 1, in which the said main body portion of each rotary indicator is of generally cylindrical configuration having an external diameter similar to the external diameters of the respective bearing strips, and the radial dimensions of the respective bearing strips equal the radial distance between the respective bearings and said external diameters of the rotary indicators.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |