Patent US2613987A successfully refreshed from Google Patents.
US3883706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple rotary wafer type switch with axial bridging contacts and multiple wafer connecting ring
Assignee: Individual
•
Filing: 1973-12-06
•
Granted: 1975-05-13
•
Expires: 1993-12-06
Abstract
Abstract Multiple rotary changeover switch comprising at least two circular insulating members each having central opening, said members being assembled with end faces thereof being in contact and their openings in registry, radially inwardly extending contact tongues embedded in said insulating members for cooperation with a rotor having contact bridges arranged in said central openings, and an elastically deformable connecting ring disposed in said central openings and axially overlapping said insulating members, and complimentary projections and grooves provided on said connecting ring and insulating members, whereby said connecting ring resiliently engages said insulating members and holds them coaxially towards one another in said assembled relationship.
Inventors
- 👤 Karl Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:52
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/64
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
Multiple rotary changeover switch comprising at least two circular insulating members each having a central opening, said members being assembled with end faces thereof being in contact and their openings in registry, radially inwardly extending contact tongues embedded in said insulating members for cooperation with a rotor having contact bridges arranged in said central openings, and an elastically deformable connecting ring disposed in said central openings and axially overlapping said insulating members, and complimentary projections and grooves provided on said connecting ring and insulating members, whereby said connecting ring resiliently engages said insulating members and holds them coaxially towards one another in said assembled relationship.
Claim 2
Dependent Claim
105 words
Multiple rotary changeover switch comprising at least two circular insulating members each having a central opening, said members being assembled with end faces thereof being in contact and their openings in registry, radially inwardly extending contact tongues embedded in said insulating members for cooperation with a rotor having contact bridges arranged in said central openings, and an elastically deformable connecting ring disposed in said central openings and axially overlapping said insulating members, and complimentary projections and grooves provided on said connecting ring and insulating members, whereby said connecting ring resiliently engages said insulating members and holds them coaxially towards one another in said assembled relationship.
Claim 3
Dependent Claim
25 words
Multiple rotary changeover switch according to claim 1, wherein the connecting ring has external lug-like projections which engage in corresponding grooves in both insulating members
Claim 4
Dependent Claim
42 words
Multiple rotary changeover switch according to claim 1, wherein the two insulating members are in the form of rings and have on the inside adjacent their contacting end faces identical annular shoulders whose axial length is equal to half the ring thickness.
Claim 5
Dependent Claim
33 words
Multiple rotary changeover switch according to claim 3, wherein radially the annular shoulders are so dimensioned that the connecting ring on the inside is flush with the inner surface of the insulating members
Claim 6
Dependent Claim
23 words
Multiple rotary changeover switch according to claim 3, wherein identical annular shoulders are provided on adjacent both end surfaces of each insulating member
Claim 7
Dependent Claim
50 words
Multiple rotary changeover switch according to claim 1, wherein on the connecting ring are arranged arms extending axially between the contact tongues, said arms having on the inside of their ends arresting projections, and insulating rings held by said arresting projections, said arms being adapted to be elastically pressed outwards.
Claim 8
Dependent Claim
38 words
Multiple rotary changeover switch according to claim 6, wherein the insulating rings are arranged at a limited axial distance from the contact tongues and have radially outwardly extending noses which engage in matching grooves in the insulating members
Claim 9
Dependent Claim
42 words
Multiple rotary changeover switch according to claim 6, wherein the insulating rings have ribs extending between the contact tongues at a limited distance therefrom, said ribs projecting slightly beyond the contact tongues in the direction towards the contact briges of the rotor.
Claim 10
Dependent Claim
41 words
Multiple rotary changeover switch according to claim 6, wherein the arresting projections cooperate with matching grooves on the outer periphery of the insulating rings in such a way that they alone fix the positions of the insulating rings in all directions
Claim 11
Dependent Claim
29 words
Multiple rotary changeover switch according to claim 6, wherein two to four arms are provided on opposite sides of the connecting ring, each extending between two adjacent contact tongues.
References Cited (Backward Citations)
US2988606A
Cited
US3467792A
Cited
US3588392A
Cited
US3525827A
Cited
US3525826A
Cited
US3548123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |