Bowling alley bumper system
USRE35232E · kind E · reissue
9Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1993 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Aug 25, 2013 |
Classification
- Technology area (CPC —)General
Abstract
A bowling alley bumper system which can be used for conventional bowling and for bumper bowling is disclosed. The bowling alley bumper system includes a pair of gutters having longitudinally extending portions and extending and retracting means for moving those portions into an extended position which allows bowling balls to fall into and roll along one of the gutters. In one embodiment, the portion is moved upwardly or downwardly along an arc in an xz plane with little or no lateral movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.