会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • METHOD FOR ATTACHING WEB TO A SPOOL AND RESULTING SPOOLED WEB
    • CA2081837A1
    • 1993-05-02
    • CA2081837
    • 1992-10-30
    • RITCHIE SHAWN W
    • RITCHIE SHAWN W
    • G03C1/765G03B17/30G03C3/00G03B21/32
    • A method of attaching film web 10 having a remaining portion 12 and a trailing end portion 18 to a spool 24. The method of attachment comprise forming a necked down portion 20 terminating in an axially extending flap 22 on trailing end portion 18 of film web 10. Forming an adhesive member 34 comprising a central portion 36 for securely attaching to a seat 32 on elongated core 26 of spool 24, a first end portion 38 for securely attaching to one side of trailing end portion 18 of film web 10 such that first end portion 38 does not extend beyond necked down portion 20, and a second end portion 40 for securely attaching to the opposite side of said trailing end portion 18 beyond necked down portion 20 on non-image area 16 of film web 10. Flexibly attaching adhesive member 34 to spool 24 and film web 10. Finally, wrapping remaining portion 12 of film web 10 onto the edges of shoulders 28,30 of elongated core 26 so that remaining portion 12 of film web 10 overlies remaining portions 10 wrapped on shoulders 28,30 and trailing end portion 18 sandwiched between adhesive member 34 wraps onto seat 32 on elongated core 26 overlying adhesive member 34 wrapped onto seat 32. The photographic film roll 42 assembled in accordance with this method has a high attachment strength with low attachment strength variability and pressure marks are not present in the remaining portion 12 of the film roll 42.