US3886545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmental readout device having improved magnetic circuit components
Assignee: Staver Co Inc
•
Filing: 1973-11-12
•
Granted: 1975-05-27
•
Expires: 1993-11-12
Abstract
Abstract A segmental readout device includes a support plate carrying seven rotatable magnetized indicator members in a spaced array adjacent to a front plate having openings to expose the indicator members. A magnetic back plate has forwardly extending magnetic cores integrally formed with the back plate and carrying cylindrical electromagnetic coils for actuating the indicator members. One group of lateral magnets in the array has diametrically opposite poles oriented oppositely from similar poles of another group of centered magnets. Coils associated with the lateral magnets are oppositely wound from the coils associated with the centered magnets. Rotational axes of the lateral magnets are perpendicular to the axes of the centered magnets. The orientation of the axes and poles winding of the coils effectively isolates adjacent magnetic circuits from each other so that it limits the ability of one magnet to cause rotation of any other magnet.
Inventors
- 👤 Alfred Skrobisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:31
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/24; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/375
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
175 words
A segmental readout device comprising: a support plate; seven rotatable indicator members rotatably supported by said support plate each of said indicator members comprising a permanent magnet, said indicator members being disposed in a Figure ''''8'''' spaced array with a group of lateral magnets rotating on axially spaced, parallel vertical axes and another group of centered magnets rotating on axially spaced parallel horizontal axes, each of said magnets having a N and a S pole, with the poles of said lateral magnets being oriented oppositely from the poles of said centered magnets for effectively reducing the magnetic effect of each of said magnets on all adjacent magnets; a back plate carrying seven magnetic cores on said back plate and extending forwardly to said support plate; a cylindrical electromagnetic coil mounted on each of said cores for selectively energizing and rotating said indicator members; and a front window plate supported by said support plate and forwardly thereof said front window plate having seven elongated openings for selectively exposing said indicator members thereat to indicate selected characters.
Claim 2
Dependent Claim
175 words
A segmental readout device comprising: a support plate; seven rotatable indicator members rotatably supported by said support plate each of said indicator members comprising a permanent magnet, said indicator members being disposed in a Figure ''''8'''' spaced array with a group of lateral magnets rotating on axially spaced, parallel vertical axes and another group of centered magnets rotating on axially spaced parallel horizontal axes, each of said magnets having a N and a S pole, with the poles of said lateral magnets being oriented oppositely from the poles of said centered magnets for effectively reducing the magnetic effect of each of said magnets on all adjacent magnets; a back plate carrying seven magnetic cores on said back plate and extending forwardly to said support plate; a cylindrical electromagnetic coil mounted on each of said cores for selectively energizing and rotating said indicator members; and a front window plate supported by said support plate and forwardly thereof said front window plate having seven elongated openings for selectively exposing said indicator members thereat to indicate selected characters.
Claim 3
Dependent Claim
65 words
A segmental readout device as defined in claim 1, further comprising a pair of spacers mounted on said back plate and extending forwardly to said support plate to carry the same, said spacers having sleeves extending forwardly to said front window plate and engaging screws thereat to hold said front window plate and said support plate in fixed positions with respect to said back plate.
Claim 4
Dependent Claim
31 words
A segmental readout device as defined in claim 2, further comprising cylindrical spacer members on said bar extensions for fixing the spacing between said front window plate and said support plate.
Claim 5
Dependent Claim
58 words
A segmental readout device as defined in claim 1 further comprising a plurality of pairs of flanges integrally formed with and extending forwardly of said support plate toward the said front window plate, each of said indicator members having axial means rotatably engaging said flanges and supported thereby adjacent to said openings respectively in said front window plate.
Claim 6
Dependent Claim
61 words
A segmental readout device as defined in claim 4, wherein each of said indicator members further comprises a nonmagnetic cylindrical member abutting said magnet, and an elongated indicator flag secured to the periphery of said non-magnetic cylindrical member so that said flag is pivotable between two angularly spaced positions respectively aligned with and out of alignment with one of said openings.
Claim 7
Dependent Claim
46 words
A segmental readout device as defined in claim 5, wherein each nonmagnetic cylindrical member carries two spaced pins for respectively abutting one of said flanges in each of said two positions of said indicator flag to hold said indicator members in each of said two positions.
Claim 8
Dependent Claim
55 words
A segmental readout device as defined in claim 6, wherein each of said electromagnetic coils is wound on a spool having an annular rear end formed with a semicylindrical extension for abutting an edge of said back plate and holding said coil non-rotatably between said support plate and said back plate on said magnetic core.
Claim 9
Dependent Claim
36 words
A segmental readout device as defined in claim 7, wherein each of said semicylindrical extension of said spool carries terminal pins connected to said coil carried by said spool for conducting electric current through said coil.
Claim 10
Dependent Claim
96 words
A segmental readout device as defined in claim 8, wherein one group of said coils is associated with said one group of lateral magnets anD another group of said coils is associated with the other group of centered magnets, the winding of said coils of said one group being opposite from the winding of said coils of said other group, so that the magnetic fields established by energizing said coils shows a lessened repulsive effect on each other whereby rotation of any of said magnets in any direction will not cause rotation of any other magnet.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |