Patent US3567893A successfully refreshed from Google Patents.
US3567893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric control device,especially for the remote control of switches,signals,and the like,for toy and model railroad installations
Assignee: Individual
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Filing: 1969-07-01
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Granted: 1971-03-02
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Expires: 1989-07-01
Abstract
Abstract The invention relates to a switch arrangement especially for use with model railway systems and the like in which the switch comprises a housing consisting of a base member and a member resting thereon consisting of a top plate and a depending peripheral portion. A pair of switch keys are mounted in the top plate and elements of normally open switches are mounted on the base plate for actuation by the aforementioned keys. The switch elements have connected and in parallel therewith, lamp bulbs with the lamp bulb pertaining to the switch elements operated by one key being located under the other key. The elements of the switches are in the form of metal strips secured to the base member by tabs which extend through slots in the base member and which are bent over on the bottom of the base member.
Inventors
- 👤 Max Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:44
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/042; A63H19/00; A63H19/30; A63H19/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
220 words
In an electric control device, especially for model railways and the like: a switch housing comprising a base member and a cover part mounted on the base member, said cover part having a top panel parallel to said base member and depending peripheral portion extending from said top panel to said base member, said switch housing being oblong when viewed in plan and having a pair of keys in side-by-side relation mounted in respective apertures formed in said top panel, a said keys formed to pass light therethrough, fixed contact members on said base member near the ends thereof, a strip of resilient conductive material having end parts formIng resilient contact members above said fixed contact members and beneath respective ones of said keys, each key upon depression thereof closing the pertaining resilient contact member on the fixed contact member therebeneath, an incandescent lamp beneath each key, the fixed contact member pertaining to each key having a resilient tongue thereon engaging the center terminal of the lamp pertaining to the other key, the center portion of said conductive strip having U-shaped lateral extensions thereon forming sockets in which said lamps are mounted and which engage the side terminals of said lamps, and wires leading into said switch housing for connection to said fixed contact members and to said conductive strip.
Claim 2
Dependent Claim
220 words
In an electric control device, especially for model railways and the like: a switch housing comprising a base member and a cover part mounted on the base member, said cover part having a top panel parallel to said base member and depending peripheral portion extending from said top panel to said base member, said switch housing being oblong when viewed in plan and having a pair of keys in side-by-side relation mounted in respective apertures formed in said top panel, a said keys formed to pass light therethrough, fixed contact members on said base member near the ends thereof, a strip of resilient conductive material having end parts formIng resilient contact members above said fixed contact members and beneath respective ones of said keys, each key upon depression thereof closing the pertaining resilient contact member on the fixed contact member therebeneath, an incandescent lamp beneath each key, the fixed contact member pertaining to each key having a resilient tongue thereon engaging the center terminal of the lamp pertaining to the other key, the center portion of said conductive strip having U-shaped lateral extensions thereon forming sockets in which said lamps are mounted and which engage the side terminals of said lamps, and wires leading into said switch housing for connection to said fixed contact members and to said conductive strip.
Claim 3
Dependent Claim
55 words
A device according to claim 1, in which each said key comprises a body of opaque material having aperture means therethrough of a respective configuration, each key having a recess in the bottom extending at least to the lateral limits of said aperture means, and a member of light transmitting material mounted in said recess.
Claim 4
Dependent Claim
61 words
A device according to claim 1, which said conductive strip extends diagonally across said base member and has the ends end parts forming said resilient contact members extending in the narrow direction of said switch housing near the ends of the switch housing, each key having means thereon for act actuating engagement with a respective one of said resilient contact members.
Claim 5
Dependent Claim
45 words
A device according to claim 3, in which said base member has an upwardly projecting extension in about the center thereof beneath of the center of said conductive strip, said U-shaped lateral extension on said conductive strip embracing opposite sides of said upwardly projecting extensions.
Claim 6
Dependent Claim
28 words
A device according to claim 4, in which said base member includes raised bosses near the ends which said fixed contact members rest upon and are supported thereby.
Claim 7
Dependent Claim
54 words
A device according to claim 5, in which said base member is slotted at opposite sides of said projection and at one end of each said boss, and said conductive strip and said fixed contact members have tabs tabs thereon extending through respective ones of said slots and bent over against said base member.
Claim 8
Dependent Claim
19 words
A device according to claim 6, in which said base member has recesses formed therein to accommodate said tabs.
Claim 9
Dependent Claim
42 words
A device according to claim 7, in which said base member includes groove means therein leading from near one end of the base member to at least some of said recesses for receiving wires connected to the said tabs in the recesses.
Claim 10
Dependent Claim
68 words
A device according to claim 8, in which said base member has an aperture therein near said one end thereof communicating with said groove means for the passage of wires from the groove means into said switch housing, said cover part also having an aperture therein near the aperture in the base member for the passage of the wires from inside the switch housing to the outside thereof.
Claim 11
Dependent Claim
32 words
A device according to claim 1, in which said switch housing, hear the narrow ends thereof, is provided with means for receiving securing elements to mount the switch housing on a support.
Claim 12
Dependent Claim
51 words
A device according to claim 3, in which each key is noncircular and the means on each key for engagement with said respective resilient contact member is in the form of a fingerlike extension dependent from the key on the side thereof nearest the adjacent narrow side of the switch housing.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |