Patent US3601778A successfully refreshed from Google Patents.
US3601778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp socket
Assignee: Microdot Inc
•
Filing: 1969-02-03
•
Granted: 1971-08-24
•
Expires: 1989-02-03
Abstract
Abstract The socket is constructed from a tube having a pair of bayonet slots and a locating slot formed outwardly of the tube wall. A cylindrical insulating element has a pair of conductors fixed thereto, the portion extending from the front face being helically formed for engaging the contacts of a two filament light bulb and the portion extending from the rear face forming terminals. A ground terminal is also supported by the insulating element having a portion in contact with the wall of the tube with the terminal end spaced a greater distance from the center of the element for locating the contacts of a plug insertable in the rear end of the tube for properly connecting the three terminals to a circuit.
Inventors
- 👤 Ronald G Hollett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:17
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/05; H01R33/46
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
In a socket, a cylindrical body having lamp bulb securing and locating slots in the wall thereof, a unit insulating element within the body having a rib extending in said locating slot, said element having a pair of rectangular apertures therethrough extending from the front to the rear face thereof, a pair of conducting members having a rectangular body portion extending through said slots forming rigid terminal blades at the rear and deflectable contacts at the front for engaging the terminals of a lamp bulb, and means for securing said members against axial movement to the front and rear faces of said insulating element.
Claim 2
Dependent Claim
104 words
In a socket, a cylindrical body having lamp bulb securing and locating slots in the wall thereof, a unit insulating element within the body having a rib extending in said locating slot, said element having a pair of rectangular apertures therethrough extending from the front to the rear face thereof, a pair of conducting members having a rectangular body portion extending through said slots forming rigid terminal blades at the rear and deflectable contacts at the front for engaging the terminals of a lamp bulb, and means for securing said members against axial movement to the front and rear faces of said insulating element.
Claim 3
Dependent Claim
36 words
In a socket as recited in claim 1, wherein said unit insulating element has a cylindrical recess in the front end thereof in which said contacts can be deflected out of engagement with said cylindrical body.
Claim 4
Dependent Claim
39 words
In a socket as recited in claim 1, wherein the means for securing said members to said insulating element are lanced-out fingers one of which engages the front face and the other the rear face of said insulating element.
Claim 5
Dependent Claim
47 words
In a socket as recited in claim 3, wherein the said insulating element has a third slot therethrough, and a ground terminal blade secured to and extending from the rear face of the insulating element and having a portion engaging the inner surface of said cylindrical body.
Claim 6
Dependent Claim
48 words
In a socket as recited in claim 4, wherein said ground terminal blade is spaced a greater radial distance from the center of said insulating element than said contact terminal blades for locating a plug of a circuit when inserted into the rear end of said cylindrical body.
Claim 7
Dependent Claim
47 words
In a socket as recited in claim 5, wherein a support for said socket has an aperture with a slot in the edge which receives the locating slot on the cylindrical body for locating the socket and therefore the filaments of the lamp relative to said support.
Claim 8
Dependent Claim
45 words
In a socket as recited in claim 6, wherein the insulating element has a recess in its front face to enclose the lower portion of the lamp bulb engaging fingers and provide length to the peripheral wall for stabilizing the element within the cylindrical body.
Claim 9
Dependent Claim
43 words
In a socket as recited in claim 5, wherein said lamp bulb engaging terminals are of double wall thickness one section being bent backwardly upon another section each section containing a lanced-out finger which extends in the same direction before the bending operation.
Claim 10
Dependent Claim
31 words
In a socket as recited in claim 8, wherein the ground terminal is of double wall thickness one section extending through the insulating element, the other section engaging the cylindrical body.
Claim 11
Dependent Claim
42 words
In a socket as recited in claim 9, wherein the section extending through said body has a lanced-out finger which engages the front face of the insulating element, the other section having an offset portion engaging the rear face of the element.
References Cited (Backward Citations)
US1511267A
Cited
US2549134A
Cited
US3052867A
Cited
US3105730A
Cited
US3139316A
Cited
US3272913A
Cited
US3344388A
Cited
US3460088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |