Laser marking of molded hand grips

• US 5,373,138 A
• Filed: 08/24/1993
• Issued: 12/13/1994
• Est. Priority Date: 04/15/1992
• Status: Expired due to Fees

• Current Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: Locklear, Tony, Wyckoff, Dennis C.
• Primary Examiner(s): ALBRITTON, CLARENCE
• Application Number:
  US08/111,166
• Time in Patent Office: 476 Days
• Field of Search: 219/121.65, 219/121.66, 219/121.68, 219/121.69, 174/112, 346/76 L
• US Class Current: 219/121.69
• CPC Class Codes: B23K 2103/42 Plastics B23K2103/16 takes precedence
• CPC Class Codes: B23K 2103/50 Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
• CPC Class Codes: B41M 5/24 Ablative recording, e.g. by burning marks; Spark recording marking by high energetic means, e.g. by laser otherwise than burning or ablative removal B41M5/26; materials or methods for recording or reproduction by optical means G11B7/00
• CPC Class Codes: B44B 7/005 by multi-step processes
• CPC Class Codes: B44C 1/228 by laser radiation

Abstract

A method is provided for marking a molded hand grip such as a golf grip (100) with specialized information such as a personalized signature. The method utilizes a laser marking device (50) that is operative to provide an optical beam (8) having power and optical wave length characteristics effective to vaporize a continuous groove or trench and/or adjacently positioned dots in a target region ("R") on the hand grip to which beam (8) is exposed, The marked grip is then removed from device (50) and a selected colorant (16) such as paint or ink of desired color is then deposited in the marking that is preferably bondable to the desired extent to the material from which the hand grip is molded after which any excess colorant is then removed to provide the finished hand grip having the specialized information marked thereon.

Claims

1. A hand grip marked after being molded with personalized information by a method comprising:

providing the hand grip already molded from a selected laser vaporizable material and having a region thereon to be marked;

exposing the hand grip region to an optical beam of a laser marking device operative to provide an optical beam having power and optical wavelength characteristics effective to vaporize the selected material in a marking form having the breadth and depth desired and having means for receiving the information to be marked and for causing the optical beam to mark the region in the marking form desired upon activation of the optical beam in response to a command signal; and

initiating the command signal and marking the personalized information on the hand grip region, the method being done after the hand grip is molded and before the hand grip is usable as a personalized hand grip.

2. The hand grip of claim 1, the method further comprising:

depositing a selected colorant into the laser marking; and

removing any excess of the colorant from the region of the hand grip.

6. The hand grip of claim 1 wherein the hand grip is a golf grip.

3. A molded hand grip marked after being molded with personalized information by a method comprising:

providing the hand grip already molded from a selected laser vaporizable material and having a region thereon to be marked;

exposing the hand grip region to an optical beam of a laser marking device operative to provide an optical beam having power and optical wavelength characteristics effective to vaporize the selected material in a marking form having the breadth and depth desired and having means for receiving the information to be marked and for causing the optical beam to mark the region in the marking form desired upon activation of the optical beam in response to a command signal;

initiating the command signal and marking the information on the hand grip region exposed thereto;

depositing a selected colorant into the laser marking; and

removing any excess of the colorant from the surface of the hand grip region having the laser marking thereon, the method being done after the hand grip is molded and before the hand grip is usable as a personalized hand grip.

4. A substantially hollow hand grip already molded from a selected laser vaporizable material, the hand grip having a region thereon marked after molding with personalized information by a laser marking device operative to produce an optical beam having power and optical wavelength characteristics effective to vaporize the selected material in a marking form after molding and before useable as a hand grip.

7. The hand grip of claim 4 wherein the hand grip is a golf grip.

5. A substantially hollow hand grip already molded from a selected laser vaporizable material, the hand grip having a region thereon marked after molding with personalized information by or for an end user utilizing a laser marking device operative to produce an optical beam having power and optical wavelength characteristics effective to vaporize the selected material in a marking form having a desired depth after molding and before useable as a personalized hand grip, the laser marking being at least partially filled with a colorant.

8. The hand grip of claim 5 wherein the hand grip is a golf grip.