http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1289400-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_22636de0df0dbbdf1ba268930535fa6c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E02D29-14 |
| filingDate | 1988-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c1e36dfc22e1f676656b5affe9275bb |
| publicationDate | 1991-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1289400-C |
| titleOfInvention | Manhole cover support having enhanced grip |
| abstract | Abstract A new manhole cover support and its processes of manufacture and use are shown. Such cover supports are used to raise the effective grade of the existing manhole cover as before road resurfacing. The cover supports are mounted upon an existing manhole cover receiving structure which has an upwardly-extending shoulder surface and a sill therebelow for accommodating such cover and the new cover support. The new cover support has an expansible body with flexible, compres-sible retention component for increasing its frictional grip to the shoulder surface. Advantageously, the retention component and any seals comprise a curable polymeric material. The receiving structure can be an existing manhole cover frame or previously-installed cover support. Some embodiments of the cover support can be adjusted as to elevation; the bodies of some are one piece and others are segmented into a plurality of connected segments. They can be sealed against substantial water infiltration. |
| priorityDate | 1988-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.