Molded thermoplastic parking block with slideably interengaged m

Details Molded thermoplastic parking block with slideably interengaged m Molded thermoplastic parking block with slideably interengaged m

1989-07-25

1991-07-02

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 76, 428 358, 428 369, 428101, 428137, 4283133, 4283139, 428461, 428500, 264263, 2642711, 404 6, 404 7, B32B 106, E01F 1500, E01C 1122

Patent

active

050284630

ABSTRACT:
The present invention is directed to elongate rigid thermoplastic articles that are molded from thermoplastic material and which maintain their shape even at length-to-width ratios (i.e. aspect ratios) ranging from about 4:1 to about 15:1 or greater. The inventive elongate rigid thermoplastic articles comprise molded thermoplastic material having disposed interiorly therein along their longitudinal extent a system (e.g. a pair) of slideably interengaged members. Preferred slideably interengaged members comprise hollow pipes that are sleeved for slideable interengagement. In the molding of elongate rigid thermoplastic articles in accordance with the present invention, the interiorly disposed slideably interengaged members are acted upon by the shrinkage of the cooling thermoplastic material resulting in the members sliding into closer interengagement. Distortion of the cooled elongate thermoplastic articles is substantially suppressed thereby.

REFERENCES:
patent: 1860596 (1932-05-01), Reinhold
patent: 2780150 (1957-02-01), Yeoman
patent: 3636829 (1972-01-01), Palmer
patent: 3900649 (1975-08-01), Hurt et al.
patent: 3963218 (1976-06-01), Gluesener
patent: 4057944 (1977-11-01), Wzatt, Jr. et al.
patent: 4105353 (1878-08-01), Bork et al.
patent: 4714377 (1987-12-01), Sandt et al.
patent: 4762438 (1988-09-01), Dewing
patent: 4844652 (1989-07-01), Schroughan
patent: 4927678 (1990-05-01), Lallement

Affiliated with

Also associated with

Rating

Molded thermoplastic parking block with slideably interengaged m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Molded thermoplastic parking block with slideably interengaged m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molded thermoplastic parking block with slideably interengaged m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1245863