Thermoplastic screw-threaded closure cap

Details Thermoplastic screw-threaded closure cap Thermoplastic screw-threaded closure cap

1979-07-25

1982-09-14

Norton, Donald F.

Bottles and jars

Closures

Cap type

220289, B65D 4104

Patent

active

043491162

ABSTRACT:
A thermoplastic cap having improved anti-backoff characteristics features a primary helical thread and a coaxial secondary thread. The cap is of a thermoplastic material having an elastic modulus in flexure within the range of from about 0.2.times.10.sup.5 to about 10.sup.6 pounds per square inch so that the secondary helical thread will flex in response to tightening torque.

REFERENCES:
patent: 3463340 (1969-08-01), Lindstrom
patent: 3480170 (1969-11-01), Evans
patent: 4125201 (1978-11-01), Birch

Affiliated with

Also associated with

Rating

Thermoplastic screw-threaded closure cap does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoplastic screw-threaded closure cap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoplastic screw-threaded closure cap will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2151819