Patent US3558834A successfully refreshed from Google Patents.
US3558834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preselecting switch
Assignee: ELMEG Elektro Mechanik GmbH
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Filing: 1969-05-01
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Granted: 1971-01-26
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Expires: 1989-05-01
Abstract
Abstract A miniature preselecting switch comprising a switch plate and two discs at both sides of the switchplate and rigidly connected to each other by a shaft rotatably extending through an aperture in the switchplate and together forming a selecting wheel adapted to be turned to different positions relative to the switchplate. Each disc is provided either with contact springs or printed contact strips which are adapted to engage respectively either with associated contact strips or contact springs on each side of the switchplate so that at each adjustment of the selecting wheel two different circuit connections may be produced.
Inventors
- 👤 Alfred Zielke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:21
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/001
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
96 words
A multiposition preselection switch comprising a switch plate having conductors disposed on both sides thereof, a pair of switch wheels abutting the sides of said switchplate and being provided with conductors on the sides thereof abutting said plate for engaging the conductors disposed on the sides of said plate abutting saiD wheels, to thereby form sets of engaging conductors, wherein each set of engaging conductors comprises a conductive strip disposed on one of said sides and a spring contact disposed in a recessed portion of the other side facing and abutting said one of said sides.
Claim 2
Dependent Claim
96 words
A multiposition preselection switch comprising a switch plate having conductors disposed on both sides thereof, a pair of switch wheels abutting the sides of said switchplate and being provided with conductors on the sides thereof abutting said plate for engaging the conductors disposed on the sides of said plate abutting saiD wheels, to thereby form sets of engaging conductors, wherein each set of engaging conductors comprises a conductive strip disposed on one of said sides and a spring contact disposed in a recessed portion of the other side facing and abutting said one of said sides.
Claim 3
Dependent Claim
22 words
A multiposition preselection switch according to claim 1, wherein the conductors on each side of said switchplate are of the same form.
Claim 4
Dependent Claim
39 words
A multiposition preselection switch according to claim 1, wherein the conductors on one side of said switchplate are in the form of spring contacts and the conductors on the other side thereof are in the form of conductive strips.
Claim 5
Dependent Claim
29 words
A multiposition preselection switch according to claim 1, wherein the spring contacts of said sets of conductors are disposed on at least one of the side of said switchplate.
Claim 6
Dependent Claim
27 words
A multiposition preselection switch according to claim 1, wherein the spring contacts of said sets of conductors are disposed on at least one of said switch wheels.
Claim 7
Dependent Claim
29 words
A multiposition preselection switch according to claim 1, wherein the conductive strips of said sets of conductors are disposed on at least one of the sides of said switchplate.
Claim 8
Dependent Claim
25 words
A multiposition preselection switch according to claim 2, wherein the spring contacts of said sets of conductors are disposed on the sides of said switchplate.
Claim 9
Dependent Claim
38 words
A multiposition preselection switch according to claim 1, wherein each of said switch wheels is provided with means for forcing said wheels into abutting relationship with said plate while permitting said wheels to rotate about a common axis.
Claim 10
Dependent Claim
35 words
A multiposition preselection switch according to claim 8, wherein said switchplate has an aperture through which said means forcing said wheels into abutting relationship are extended and connected together, whereby said wheels rotate in synchronism.
Claim 11
Dependent Claim
45 words
A multiposition preselection switch according to claim 8, wherein one of said wheels of said pair has a serrated starlike shape with outwardly projecting teeth at least one of which projects over the edge of said switch plate for any rotative position of said wheels.
Claim 12
Dependent Claim
39 words
A multiposition preselection switch according to claim 10, wherein the other of said wheels of said pair has a circular outer shape and symbols marked thereon for indicating the position to which said pair of wheels has been rotated.
Claim 13
Dependent Claim
66 words
A multiposition preselection switch according to claim 6, wherein said spring contact on at least one of said wheels are on the side thereof opposite the side abutting said switchplate, each of said spring contacts having a contact nipple projecting through an aperture in said at least one of said wheels toward the side of said switchplate and adapted to engage resiliently with conductive strips thereon.
Claim 14
Dependent Claim
47 words
A multiposition preselection switch according to claim 4, wherein said spring contacts comprise a plurality of relatively long and narrow spring plates, and wherein said switchplate is provided with a crossbar connecting all of said spring contacts on one side of said switchplate near one end thereof.
Claim 15
Dependent Claim
38 words
A multiposition preselection switch according to claim 6, wherein said switchplate and conductive strips are provided with corresponding apertures near one end thereof through which connecting wires are to be passed for being soldered to said conductive strips.
Claim 16
Dependent Claim
60 words
A multiposition preselection switch according to claim 5, wherein said switchplate and said conductive strips are provided with corresponding apertures, with the apertures for the connecting wires for the conductive strips on one side of said switch plate being laterally offset relative to the apertures for the connecting wires for the conductive strips on the opposite side of said switchplate.
Claim 17
Dependent Claim
70 words
A multiposition preselection switch according to claim 3, wherein each of said conductive strips and said spring contacts have one end forming a terminal adapted for soldering a connecting wire thereto, said terminal ends of said spring contacts being bent away from said Switchplate, said plate and said terminal ends of conductive strips having corresponding bores for inserting connecting wires therein and for soldering the same to said conductive strips.
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |