Lamp base locking clip

• US 5,521,460 A
• Filed: 08/24/1994
• Issued: 05/28/1996
• Est. Priority Date: 08/24/1994
• Status: Expired due to Term

• Current Assignee: OSRAM Sylvania Inc. (Ams-Osram AG)
• Original Assignee: OSRAM Sylvania Inc. (Ams-Osram AG)
• Inventors: Zhu, Huiling
• Primary Examiner(s): Yusko, Donald J.
• Assistant Examiner(s): PATEL, NIMESHKUMAR D
• Application Number:
  US08/295,136
• Time in Patent Office: 643 Days
• Field of Search: 313/318.01, 313/318.03, 313/318.04, 313/318.09, 313/318.1, 313/51, 439/611, 439/615, 24/563, 24/67.9, 411/198, 411/202, 411/203, 411/211, 411/221, 411/316, 411/317, 411/322
• US Class Current: 313/318.09
• CPC Class Codes: H01J 2209/46 Handling of tube components during manufacture
• CPC Class Codes: H01J 5/60 for fastening by mechanical means
• CPC Class Codes: H01J 9/30 Manufacture of bases
• CPC Class Codes: Y10T 24/44923 Clasp, clip, or support-clamp cut or shaped from a single sheet of resilient, uniformly thick, planar material

Abstract

A lamp base locking clip comprises a first end having a given thickness; an intermediate portion having a thickness at least approximately 3 times said given thickness and a second end having said given thickness. The intermediate portion is defined by opposed, space apart, first and second surfaces, said first end being contiguous with said first surface and said second end being contiguous with said second surface. In a preferred embodiment the clip is formed from a single piece of ribbon material and said intermediate portion is formed by folding said ribbon to have two reentrant portions. The preferred embodiment is especially suited for automation.

Claims

1. A lamp comprising:

a hollow body including a light source, said body terminating in a neck;

at least two lead-in wires extending from said neck, said neck being substantially circular in cross-section and having a longitudinal axis with a given circumference about said axis;

a keyway formed in said neck parallel to said axis and having a circumferential extent less than said given circumference;

a lamp base locking clip positioned in said keyway, said locking clip having a first end having a given thickness, an intermediate portion having a thickness at least approximately 3 times said given thickness, and a second end having said given thickness;

a first of said lead-in wires being electrically connected to said first end of said clip;

a lamp base shell having first and second electrically conductive portions separated by an insulator fitted on said neck, said first portion of said lamp base shell being electrically connected to said clip; and

the other of said lead-in wires being electrically connected to said second electrically conductive portion.

2. The lamp of claim 1 wherein said intermediate portion is defined by opposed, space apart, first and second surfaces, said first end being contiguous with said first surface and said second end being contiguous with said second surface.

3. The lamp of claim 2 wherein said first portion of said lamp base shell is electrically connected to said clip by a weld formed between said shell and said second end.

4. The lamp of claim 2 wherein said neck is threaded and said lamp base shell is threaded onto said neck.

5. The lamp of claim 4 wherein said lamp base shell is attached to said second end of said locking clip by a weld.

6. A locking clip comprising:

a first end having a given thickness;

an intermediate portion having a thickness approximately 3 times said given thickness and a second end having said given thickness;

said intermediate portion being defined by opposed, space apart, first and second surfaces, said first end being orthogonal to said second end and contiguous with said first surface and said second end being contiguous with said second surface.

7. The locking clip of claim 6 wherein said intermediate portion comprises:

a first reentrant section attached at one end to said first end and attached at a second end to an in-between member; and

a second reentrant section attached to said in-between member and said second end.

8. The locking clip of claim 6 wherein said intermediate portion comprises:

and area of said first end;

a filler member; and

an area of said second end.

9. The locking clip of claim 6 wherein said intermediate portion comprises:

a hollow space defined by a right angled bend on said first end and said second end.

10. The locking clip of claim 6 wherein said intermediate portion comprises:

a hollow space defined by a right angled bend formed on one of said ends and a rib formed on said one of said ends.

11. A locking clip comprising:

a first end having a given thickness;

an intermediate portion having a thickness approximately 3 times said given thickness and a second end having said given thickness;

said intermediate portion being defined by opposed, space apart, first and second surfaces, said first end being contiguous with said first surface and said second end being contiguous with said second surface, said intermediate portion comprising a hollow space defined by a right angled bend on said first end and said second end.

12. A locking clip comprising:

a first end having a given thickness;

an intermediate portion having a thickness approximately 3 times said given thickness and a second end having said given thickness;

said intermediate portion being defined by opposed, space apart, first and second surfaces, said first end being contiguous with said first surface and said second end being contiguous with said second surface, said intermediate portion comprising a hollow space defined by a right angled bend formed on one of said ends and a rib formed on one of said ends.