Manhole step insert for preventing seepage during...

Details Manhole step insert for preventing seepage during... Manhole step insert for preventing seepage during...

E - Fixed Constructions

04

G

E04G 15/04 (2006.01) E02D 29/12 (2006.01)

Patent

CA 2282087

Method and apparatus for forming cast members as well as inserts, insert assemblies, the combination of a mold assembly and such insert, and a combination of such insert and a reciprocatable pin assembly are all provided herein. Steps are provided in the cast member by sliding mounting flanges of hollow plastic step inserts into slots provided in the inner mold shell. The cast material is then poured into the mold. Once the cast material has set, the cast member is withdrawn from the mold assembly. The step insert mounting flanges are broken away, leaving hollow step inserts into which manhole steps are force fittingly mounted. The inserts are provided with integral cover tabs which cover larger slots provided to facilitate insertion of the step inserts, preventing leakage of the cast material into the mold assembly. Integral cover tabs are similarly provided on enforcement ring support members mounted in a similar fashion to insertion slots provided on one of the mold members to cover larger width slot portions to prevent seepage of cast material. Similar seals are provided by cylindrical-shaped inserts for use in wetcast and drycast fabrication methods.

Affiliated with

Also associated with

Rating

Manhole step insert for preventing seepage during... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manhole step insert for preventing seepage during..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manhole step insert for preventing seepage during... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1793901