Decorative light string

• US 6,382,812 B1
• Filed: 02/13/2001
• Issued: 05/07/2002
• Est. Priority Date: 02/13/2001
• Status: Expired due to Fees

• Current Assignee: Min Hsun Hsu
• Original Assignee: Min Hsun Hsu
• Inventors: Hsu, Min Hsun
• Primary Examiner(s): O'Shea, Sandra
• Assistant Examiner(s): Alavi, Ali
• Application Number:
  US09/781,432
• Time in Patent Office: 448 Days
• Field of Search: 362/226, 362/391, 362/377, 362/378, 362/806, 439/611, 439/617, 439/699.1, 439/699.2
• US Class Current: 362/249.07
• CPC Class Codes: F21S 4/10 with light sources attached to loose electric cables, e.g. Christmas tree lights
• CPC Class Codes: F21V 17/06 the fastening being onto or by the lampholder
• CPC Class Codes: F21V 19/006 of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base of sources having contact pins, wires or blades F21V19/0005; of LEDs or sources mounted on printed-circuit board F21V19/001
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: Y10S 362/806 Ornamental or decorative

Abstract

A decorative light s string is disclosed, including a power cord, a plurality of electric connectors respectively installed in the power cord, a plurality of lamp assemblies respectively connected to the electric connectors to obtain the necessary working voltage, and a plurality of electric extension wires respectively connected between the electric connectors and the lamp assemblies to transmit electricity from the power connectors and the lamp assemblies.

Claims

1. A decorative light string comprising:

a power cord;

a plurality of electric connectors respectively installed in said power cord, said electric connectors each comprising a base fastened to said power cord, said base having a receiving chamber and an outer thread, and two metal contact plates mounted in said receiving chamber an respectively connected to positive and negative poles of said power cord, a flexible insert press-fitted into said receiving chamber of said base, and a screw cap fastened to said base to hold down said flexible insert, said screw cap comprising an inner thread threaded onto the outer thread of said base, and a through hole at the center of a top thereof;

a plurality of lamp assemblies respectively connected to said electric connector, said lamp assemblies each comprising a lamp holder, said lamp holder defining a receiving chamber, a flexible insert press-fitted into the receiving chamber of said lamp holder, receptacle fastened to the flexible insert in the receiving chamber of said lamp holder, said receptacle having two lead-out legs respectively fastened to the flexible insert in the receiving chamber of said lamp holder, a cap fastened to said lamp holder to hold down the flexible insert and receptacle of the respective lamp assembly, the cap of each of said lamp assemblies having a top and a through hole at the center of the top, and a bulb mounted in the through hole of the cap of the respective lamp assembly and threaded into said receptacle; and

a plurality of electric extension wire respectively connected between said electric connectors and said lamp assemblies for enabling electricity to be transmitted from said power cord to said lamp assemblies, said electric extension wires each having a positive conductor and a negative conductor respectively fastened to the flexible inserts of said electric connectors and the flexible inserts of said lamp assemblies and electrically connected between the metal contact plates of said electric connectors and the lead-out legs of said lamp assemblies.

2. The decorative light string of claim 1, wherein the flexible inserts of said electric connectors and the flexible inserts of said lamp assemblies.

3. The decorative light string of claim 1, wherein said lamp assemblies each further comprise a lampshade fastened to the respective cap and covered around the respective bulb, said lampshade comprising a lower half shell fixedly mounted on the respective cap, and an upper half shell covered on said lower half shell.