High-frequency wave one-step forming edge-sealed planar head tying band for breathing mask

High-frequency wave one-step forming edge-sealed planar head tying band for breathing mask

CN
  • CN 203,874,247 U
  • Filed: 04/14/2014
  • Issued: 10/15/2014
  • Est. Priority Date: 09/30/2013
  • Status: Active Grant
First Claim
Patent Images

1. a high frequency waves one-shot forming breathing mask edge sealing plane bandage, comprise by main bandage and corresponding two upper bandages and two the plane bandage main elements that lower bandage forms that are located at the left and right sides, main bandage upper and lower part that divide, it is characterized in that:

  • all border seals of described bandage main element and smooth.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×