Knob and process of manufacturing same

• US 20120311820A1
• Filed: 06/09/2011
• Published: 12/13/2012
• Est. Priority Date: 06/09/2011
• Status: Abandoned Application

• Current Assignee: Po-Han Chang
• Original Assignee: Po-Han Chang
• Inventors: Chang, Po-Han
• Application Number:
  US13/157,300
• Publication Number:
  US 20120311820A1
• Time in Patent Office: Days
• US Class Current: 16/110.1
• CPC Class Codes: A47B 2095/028 Knobs
• CPC Class Codes: A47B 95/02 Handles similar handles for doors in general E05B1/0015
• CPC Class Codes: E05B 1/0015 Knobs or handles which do not operate the bolt or lock, e.g. non-movable; Mounting thereof
• CPC Class Codes: E05B 17/0004 Lock assembling or manufacturing making locksmith's goods of sheet metal B21D53/38; assembling in general B23P21/00

Abstract

A knob and process of manufacturing same is provided. The knob includes a knob portion formed of plastic; and a shank portion comprising a first hollow cylindrical member including an annular flange extending outward at one end, and a second hollow cylindrical member including an annular flange extending outward at one end, the annular flange of the first hollow cylindrical member being disposed in alignment with the annular flange of the second hollow cylindrical member. The whole second hollow cylindrical member and a portion of the first hollow cylindrical member of the shank portion are within the knob portion. The plastic knob portion has increased traction.

Claims

1. A knob comprising:

a knob portion formed of plastic; and

a shank portion comprising a first hollow cylindrical member including an annular flange extending outward at one end, and a second hollow cylindrical member including an annular flange extending outward at one end, the annular flange of the first hollow cylindrical member being disposed in alignment with the annular flange of the second hollow cylindrical member;

wherein the whole second hollow cylindrical member and a portion of the first hollow cylindrical member of the shank portion are within the knob portion.