Recreational surface block locking system
US5865004A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Jan 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A molded rubber recreational block locking system, wherein a molded rubber recreational surface block includes an upper surface and a resilient supporting structure below the upper surface. At least one recessed shoulder is located below the upper surface and intersects a marginal edge of the molded rubber recreational surface block. A fastening device interconnects adjacently positioned recessed shoulders in adjacent molded rubber recreational surface blocks for securing same together. Typically, at least one generally vertically directed through hole extends through each recessed shoulder and a flexible fastening device, such as a fastening strap, interconnects the through holes of adjacently positioned recessed shoulders in adjacent molded rubber recreational surface blocks. A cap covers the fastening device and recessed shoulders of adjacently positioned molded rubber recreational surface blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.