Method for manufacturing plastic bowling pins

Details Method for manufacturing plastic bowling pins Method for manufacturing plastic bowling pins

1998-07-24

2000-07-04

Pierce, William M.

Games using tangible projectile

Bowling

Pin

473119, A63D 900

Patent

active

06083112&

ABSTRACT:
A method for manufacturing a plastic bowling pin that has a porous core and a resilient envelope includes the step of blow-forming the envelope in a blowing mold and removing the envelope from the blowing mold. The envelope is then cooled to a temperature of 60.degree. C. to 100.degree. C. A core plastic material containing an exothermic agent is then injected into the envelope for forming the core. The core plastic material is heated to a temperature of 200.degree. C. to 260.degree. C. The inner layer of the envelope is thus fused to the plastic material of the core to provide an intimate connection between the envelope and the core.

REFERENCES:
patent: 3619436 (1971-11-01), Gruss
patent: 5510067 (1996-04-01), Jager et al.

Affiliated with

Also associated with

Rating

Method for manufacturing plastic bowling pins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing plastic bowling pins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing plastic bowling pins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1481220