Patent · US Expired

Noise reducing system

US6019648A · kind A · utility

9Cited by
3References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 6, 1998
Grant dateFeb 1, 2000
Priority date
Expiry dateFeb 6, 2018

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB63H2011/081
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A noise reducing system for a personal watercraft. The system includes a pump insulating system which insulates the pump housing from the hull. More particularly, the pump insulating system includes at least one insulating attachment for connecting a pump housing to a supporting surface of a personal watercraft. Such insulating attachment includes an insulator having a portion mounted between the pump housing and the supporting surface. Advantageously, the system also includes a resonator and a shield, both mounted on the exhaust system, and an insulating material mounted inside an air intake pipe.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.