← Back to Patent Explorer
US4473770A Expired / Lapsed US ⏱️ 0.0 years remaining

Baseless incandescent lamp assembly

Assignee: Toshiba Corp
•
Filing: 1983-06-27
•
Granted: 1984-09-25
•
Expires: 2003-06-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A baseless incandescent lamp assembly comprises a baseless incandescent lamp including a flattened seal section and a pair of external lead wires, a main socket body including a lamp holding chamber to contain the flattened seal section of said baseless incandescent lamp, and a pair of conductive holding members provided in the lamp holding chamber of the main socket body and holding the flattened seal section. Said external lead wires are held and electrically connected to the conductive holding members by being pressed between the conductive holding members and the inner surfaces of the lamp holding chamber.

Inventors

  • 👤 Masaharu Baba
  • 👤 Kiyokazu Honda
  • 👤 Akiyoshi Hashima

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 14:54
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/05; H01R33/06; H01R33/09; H01J; H01J5/00; H01J5/50; H01K; H01K1/00; H01K1/42; H01K1/44

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 219 words
A baseless incandescent lamp assembly comprising: (a) a baseless incandescent lamp including a flattened seal section and a pair of external lead wires outwardly leading from the flattened seal section; (b) a main socket body including inner surfaces defining a lamp holding chamber to contain the flattened seal section of said baseless incandescent lamp; and (c) a pair of conductive holding members provided in the lamp holding chamber of the main socket body for holding the flattened seal section of the baseless incandescent lamp; and (d) means permitting said external lead wires to be pressingly disposed between the conductive holding members and the inner surfaces of the main socket body for securely holding said external lead wires and for ensuring electrical connection between said lead wires and said conductive holding members, wherein each of said conductive holding members includes an opposing pair of pinch strips and a contact strip coupling said pinch strips, clamping and thus supporting said flattened seal portion of the baseless incandescent lamp therebetween, and wherein said contact strip includes holding means defining a pair of opposing projections extending from both sides of said contact strip for biting into predetermined opposing ones of said inner surfaces of the lamp holding chamber to securely hold said contact strip between said predetermined opposing ones of said inner surfaces.
Claim 2
Dependent Claim 219 words
A baseless incandescent lamp assembly comprising: (a) a baseless incandescent lamp including a flattened seal section and a pair of external lead wires outwardly leading from the flattened seal section; (b) a main socket body including inner surfaces defining a lamp holding chamber to contain the flattened seal section of said baseless incandescent lamp; and (c) a pair of conductive holding members provided in the lamp holding chamber of the main socket body for holding the flattened seal section of the baseless incandescent lamp; and (d) means permitting said external lead wires to be pressingly disposed between the conductive holding members and the inner surfaces of the main socket body for securely holding said external lead wires and for ensuring electrical connection between said lead wires and said conductive holding members, wherein each of said conductive holding members includes an opposing pair of pinch strips and a contact strip coupling said pinch strips, clamping and thus supporting said flattened seal portion of the baseless incandescent lamp therebetween, and wherein said contact strip includes holding means defining a pair of opposing projections extending from both sides of said contact strip for biting into predetermined opposing ones of said inner surfaces of the lamp holding chamber to securely hold said contact strip between said predetermined opposing ones of said inner surfaces.
Claim 3
Dependent Claim 43 words
A baseless incandescent lamp assembly according to claim 1, wherein said means sub (d) permits each of the external lead wires to be pressingly disposed between a respective one of said contact strips and its associated inner surface of the main socket body.
Claim 4
Dependent Claim 47 words
A baseless incandescent lamp assembly according to claim 2, wherein said means sub (d) includes a slit defined in the lower edge of said contact strip through which an external lead wire is extended between the contact strip and the inner surface of the main socket body.
Claim 5
Dependent Claim 38 words
A baseless incandescent lamp assembly according to claim 3, wherein said main socket body includes a flange section at which the lamp holding chamber opens, the upper edge of the contact strip being extended along the flange section.
Claim 6
Dependent Claim 24 words
A baseless incandescent lamp assembly according to claim 4, wherein the contact strip is attached to the flange section of the main socket body.
Claim 7
Dependent Claim 247 words
A baseless incandescent lamp assembly comprising: (a) a baseless incandescent lamp including a flattened seal section and a pair of external lead wires outwardly leading from the flattened seal section; (b) a main socket body including inner surfaces defining a lamp holding chamber to contain the flattened seal section of said baseless incandescent lamp; and (c) a pair of conductive holding members provided in the lamp holding chamber of the main socket body for holding the flattened seal section of the baseless incandescent lamp; and (d) means permitting said external lead wires to pressingly disposed between the conductive holding members and the inner surfaces of the main socket body for securely holding said external lead wires and said conductive holding members, wherein (i) each of said conductive holding members includes an opposing pair of pinch strips and a contact strip coupling said pinch strips, said pinch strips clamping and thus supporting said flattened seal portion of the baseless incandescent lamp therebetween; (ii) said means sub (d) permits each of the external lead wires to be pressingly disposed between a respective one of said contact strips and its associated inner surface of the main socket body; and (iii) said contact strip includes holding means defining a pair of opposing projections extending from both sides of said contact strip for biting into predetermined opposing ones of said inner surfaces of the lamp holding chamber to securely hold said contact strip between said predetermined opposing ones of said inner surfaces.
Claim 8
Dependent Claim 247 words
A baseless incandescent lamp assembly comprising: (a) a baseless incandescent lamp including a flattened seal section and a pair of external lead wires outwardly leading from the flattened seal section; (b) a main socket body including inner surfaces defining a lamp holding chamber to contain the flattened seal section of said baseless incandescent lamp; and (c) a pair of conductive holding members provided in the lamp holding chamber of the main socket body for holding the flattened seal section of the baseless incandescent lamp; and (d) means permitting said external lead wires to pressingly disposed between the conductive holding members and the inner surfaces of the main socket body for securely holding said external lead wires and said conductive holding members, wherein (i) each of said conductive holding members includes an opposing pair of pinch strips and a contact strip coupling said pinch strips, said pinch strips clamping and thus supporting said flattened seal portion of the baseless incandescent lamp therebetween; (ii) said means sub (d) permits each of the external lead wires to be pressingly disposed between a respective one of said contact strips and its associated inner surface of the main socket body; and (iii) said contact strip includes holding means defining a pair of opposing projections extending from both sides of said contact strip for biting into predetermined opposing ones of said inner surfaces of the lamp holding chamber to securely hold said contact strip between said predetermined opposing ones of said inner surfaces.
Claim 9
Dependent Claim 47 words
A baseless incandescent lamp assembly according to claim 6, wherein said means sub (d) includes a slit defined in the lower edge of said contact strip through which an external lead wire is extended between the contact strip and the inner surface of the main socket body.

References Cited (Backward Citations)

US3262001A Cited
US3555341A Cited
US4013335A Cited
US4122367A Cited
US4114066A Cited
US4100448A Cited
US4181390A Cited
US4146814A Cited
US4318158A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-09-25 1988-03-26 1988-09-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-09-25 1992-03-26 1992-09-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-09-25 1996-03-26 1996-09-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag