Lampholders for miniature light sets

• US 4,807,098 A
• Filed: 12/10/1987
• Issued: 02/21/1989
• Est. Priority Date: 10/24/1984
• Status: Expired due to Term

• Current Assignee: Joseph M Ahroni
• Original Assignee: Joseph M Ahroni
• Inventors: Ahroni, Joseph M.
• Primary Examiner(s): Husar, Stephen F.
• Application Number:
  US07/131,027
• Time in Patent Office: 439 Days
• Field of Search: 174/113 R, 174/114 R, 174/114 S, 174/117 F, 313/1, 313/51, 313/250, 313/251, 313/267, 313/268, 313/272, 313/285, 315/288, 362/227, 362/236, 362/237, 362/238, 362/249, 362/252, 362/806, 439/387, 439/391, 439/414, 439/417, 439/419, 439/425, 439/492, 439/505, 439/658, 439/659, 439/699
• US Class Current: 362/249.01
• CPC Class Codes: F21S 4/10 with light sources attached to loose electric cables, e.g. Christmas tree lights
• CPC Class Codes: F21V 21/002 making direct electrical contact, e.g. by piercing F21V21/35 takes precedence
• CPC Class Codes: F21W 2121/04 for Christmas trees
• CPC Class Codes: H01R 33/09 for baseless lamp bulb
• CPC Class Codes: H01R 4/2404 the contact members having teeth, prongs, pins or needles penetrating the insulation
• CPC Class Codes: Y10S 362/806 Ornamental or decorative

Abstract

A lampholder for miniature light sets has a socket at one end to receive a lamp unit and a wireway at the opposite end which is covered by a snap-on cover. The socket receives two identical contact plates which are laterally reversible so that in one position they project by a respective insulation severing element into one portion of the wireway to engage a first wire, and in a second position the severing element projects into a second portion of the wireway to engage a second wire.

Claims

1. A lampholder comprising:

a housing having a socket at one end to receive a lamp unit, and having a wireway at the opposite end to receive three side-by-side insulated wires occupying a central portion and first and second opposite side portions of the wireway;

said socket having two recessed portions at opposite sides thereof, one of said recessed portions intersecting said central portion and said first opposite side portion of the wireway and the other of said recessed portions intersecting said central portion and said second opposite side portion of the wireway; and

a pair of like contact members lodged in respective of said recessed portions to be engaged by wire leads from said lamp unit, said contact members each having an insulation-severing contact element projecting into said wireway, each of said contact members being reversible before being lodged in said recessed portions to have its said contact element projecting either into said central portion of the wireway or into one of said opposite side portions of the wireway.

2. A lampholder according to claim 1 in which said wireway has a cover having a snap interfit with said housing.

3. A lampholder according to claim 1 in which said housing has a pair of base flanges overlying said first and second opposite side portions of the wireway and each having one of its ends adjacent one of said contact members, said base flanges being separated by an entry from the wireway into said socket;

and

a cover over the wireway and having a central locking member extending through said entry and having an enlarged head engaging the socket side of said base flanges.

4. A lampholder according to claim 1 in which each of said members has its said contact element centered in one lateral half thereof and projecting beyond the extent of the adjoining end of the other lateral one-half of the contact member.

5. A lampholder according to claim 4 in which said adjoining end is rounded.

6. A lampholder according to claim 1 in which the end of each contact member having said contact element is tapered for ease of insertion into said socket.

7. A lampholder comprising:

a housing having a socket at one end to receive a lamp unit, and having a wireway at the opposite end to receive three side-by-side insulated wires occupying a central portion and first and second opposite side portions of the wireway;

said socket having a generally rounded mouth portion and a generally rectangular extension portion, said extension portion having two recessed portions at opposite sides thereof intersecting said mouth portion, and one of said recessed portions intersecting said central portion and said first opposite side portion of the wireway and the other of said recessed portions intersecting said central portion and said second opposite side portion of the wireway; and

a pair of like contact members lodged in respective of said recessed portions to be engaged by wire leads from said lamp unit, said contact members each having an insulation- a severing portion projecting into said wireway, each of said contact members being adapted to be introduced through said mouth portion into the respective said recessed portions and being reversible before being introduced so as to be adapted to have its insulation-piercing portion projecting either into said central portion of the wireway or into one of said opposite side portions of the wireway.

8. A lampholder according to claim 7 in which said contact members have barbs shaped to resist movement of the contact members toward said mouth portion after they are lodged in said recessed portions.

9. A lampholder according to claim 7 in which said housing has a respective retaining groove along one edge of each of said recessed portions for receiving an edge portion of the respective contact member.

10. A lampholder comprising:

a housing having a socket at one end to receive a lamp unit of the type having two exposed wire leads, and having a wireway at the opposite end to receive two side-by-side insulated wires occupying first and second portions of the wireway;

said socket having a generally rectangular portion with two of its opposite sides intersecting said first and second portions of the wireway;

a pair of like contact members lodged in said socket in engagement with said two opposite sides to be engaged by said two wire leads of said lamp unit, said contact members each being generally flat along its length for engagement by one of said wire leads and having an insulation severing element projecting at an end thereof into said wireway, each of said contact members being reversible at each of said opposite sides to have its insulation piercing portion projecting either into said first portion of the wireway or into said second portion of the wireway.