Hollow bat and method of making
US4177989A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1977 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Nov 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4994
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A method of attaching a hollow end knob to the handle portion of a hollow ball bat, in which the hollow bat handle portion positioned within the cavity of the hollow end knob is outwardly deformed to a transverse cross-section substantially larger than the cavity opening. The outward deformation is preferably accomplished by applying pressure against the transverse exterior surface of the end knob which in turn bears against the circular end of the hollow bat handle. The interior transverse surface of the end knob may have a circular recess corresponding to the end of the bat handle. A hollow metal ball bat having a hollow end knob encompassing an enlarged section of a hollow handle portion. The opening of the end knob is smaller than the contained enlarged handle portion, and fits over the smaller cross-section of the handle portion adjacent the enlarged portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.