US4079244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light fixture
Assignee: Individual
•
Filing: 1976-02-05
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Granted: 1978-03-14
•
Expires: 1996-02-05
Abstract
Abstract A light fixture comprises a central support body of circular shape presenting on its periphery a plurality of angularly equispaced sockets. Projecting at the interior of each socket cavity there are arranged vertically superposed electrical contacts in the form of male or pin contacts, which are connected to an electric circuit leading to the network. Inside each socket there can be inserted or "nested" a plug made of electrically insulating material, which carries a series of electrical contacts in the form of female or jack contacts, in a number corresponding to the number of pin contacts of the socket, and arranged in such a manner that, upon insertion or nesting of the plug into the socket, the pin contacts engage the corresponding jack contacts, thus establishing an electrical connection between the network circuit and the lamp circuit of the lamp-carrying arm attached to the said plug. The plug and the socket present such a shape or section as to avoid rotation of the plug around its nesting axis, once inserted in the socket.
Inventors
- 👤 Pietro Bortoluzzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:04
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21S8/06; F21S8/065; F21V; F21V21/00; F21V21/02; F21V21/10; F21V21/108; F21V23/00; F21V23/06; H; H01; H01R; H01R25/00; H01R25/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
156 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts are provided on a plurality of conductor rings arranged one above the other coaxially with the central axis of the support body; (b) insulating rings being interposed between said conductor rings; and (c) each conductor ring being electrically connectable to a separate lead of the electric circuit.
Claim 2
Dependent Claim
156 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts are provided on a plurality of conductor rings arranged one above the other coaxially with the central axis of the support body; (b) insulating rings being interposed between said conductor rings; and (c) each conductor ring being electrically connectable to a separate lead of the electric circuit.
Claim 3
Dependent Claim
85 words
A light fixture according to claim 1, wherein said first electric contacts comprise pin-like elements projecting outwardly from the conductor rings in the interior of the socket cavity, each conductor ring having pin-like contacts corresponding in number to the socket cavities, said second electrical contacts comprising jack-like elements housed in said plug element, whereby the connection between said first and second electrical contacts takes place upon insertion of the pin contacts inside the jack contacts when the plug element is nested inside the socket cavity.
Claim 4
Dependent Claim
96 words
A light fixture according to claim 2, in which the plug of the lamp-carrying arm or member is constructed of a body of electrically insulating material, inside which there are housed the jack contacts to be connected to the pin contacts of the respective socket, at least one of said jack contacts presenting, at the end opposite to the end which is intended to engage the respective pin contact of the socket, an extremity capable of being engaged by a dent provided on the lamp-carrying arm or member, upon assembly of said arm onto said plug.
Claim 5
Dependent Claim
66 words
A light fixture according to claim 3, in which the plug is provided, on its end opposite to the end which is inserted into the socket, with at least one flexible or articulated member or wing capable of being divaricated so as to consent the assembly of the arm onto the plug, and of being closed on said arm after its assembly on the said plug.
Claim 6
Dependent Claim
47 words
A light fixture according to claim 3, in which the lamp-carrying arm is made of electrically conductive material, and the jack of the plug engaged by the dent of said arm is intended for connection with a contact pin connected to the earth of the electric circuit.
Claim 7
Dependent Claim
175 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts comprise outwardly projecting tongues on a plurality of conductor rings arranged one above the other; (b) insulating rings being interposed between the conductor rings; and (c) the tongues being arranged so as to project slightly beyond the inner side wall of the socket, so as to determine a contact surface for the respective said second electrical contact constructed as a contact surface on the plug element.
Claim 8
Dependent Claim
175 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts comprise outwardly projecting tongues on a plurality of conductor rings arranged one above the other; (b) insulating rings being interposed between the conductor rings; and (c) the tongues being arranged so as to project slightly beyond the inner side wall of the socket, so as to determine a contact surface for the respective said second electrical contact constructed as a contact surface on the plug element.
Claim 9
Dependent Claim
165 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, including (a) an insulating disc defining a portion of the side wall of each socket cavity; (b) a plurality of concentrically arranged conductor rings embedded in said insulating disc; (c) said conductor rings projecting slightly out of said insulator disc so as to determine a contact surface for the respective said second electrical contact constructed as a contact surface on the plug element.
Claim 10
Dependent Claim
165 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, including (a) an insulating disc defining a portion of the side wall of each socket cavity; (b) a plurality of concentrically arranged conductor rings embedded in said insulating disc; (c) said conductor rings projecting slightly out of said insulator disc so as to determine a contact surface for the respective said second electrical contact constructed as a contact surface on the plug element.
Claim 11
Dependent Claim
168 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts are provided on a plurality of concentrically arranged conductor rings of substantially cylindrical shape, each conductor ring having an aperture corresponding to each socket cavity, each aperture having substantially the same shape as the corresponding section of the socket cavity, whereby a contact surface is established along the entire inner perimeter of the said section of the socket cavity.
Claim 12
Dependent Claim
168 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts are provided on a plurality of concentrically arranged conductor rings of substantially cylindrical shape, each conductor ring having an aperture corresponding to each socket cavity, each aperture having substantially the same shape as the corresponding section of the socket cavity, whereby a contact surface is established along the entire inner perimeter of the said section of the socket cavity.
Claim 13
Dependent Claim
151 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts comprise continuous conductor wires partially housed in grooves provided in the sockets transversely of the socket axis, whereby a contact surface is established along a substantial portion of the inner perimeter of the section of the socket cavity defined by the groove.
Claim 14
Dependent Claim
151 words
A sectional light fixture of the type comprising a first sectional unit consisting of a support body having a plurality of socket cavities arranged about a central axis, a plurality of first electrical contacts connectable to an electric circuit being arranged in the interior of each socket cavity, and further comprising a plurality of second sectional units each consisting of a lamp-carrying member having a plug element, each plug element being adapted to be nested inside a said socket cavity and having a plurality of second electrical contacts connectable to the lighting circuit of the electric lamp carried by the lamp-carrying member, wherein (a) the said first electrical contacts comprise continuous conductor wires partially housed in grooves provided in the sockets transversely of the socket axis, whereby a contact surface is established along a substantial portion of the inner perimeter of the section of the socket cavity defined by the groove.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |