Patents Assigned to Richard R. Zito R & D Corp.
  • Controlled multiple storage vessel gas trap
    Patent number: 5617727
    Abstract: A gas trap having several independently controlled storage vessels (140,150). Access to each vessel is achieved via pneumatic valves (80,90), and these pneumatic valves are, in turn, controlled by solenoid valves (300, 380). The solenoid valves receive their electrical power from a relay system (520) which is controlled by a computer (550).
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: April 8, 1997
    Assignee: Richard R. Zito R & D Corp.
    Inventor: Richard R. Zito
  • Two valve nozzle for a CO.sub.2 snow cleaner
    Patent number: D372071
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: July 23, 1996
    Assignee: Richard R. Zito R & D Corp.
    Inventor: Richard R. Zito
  • Hand held CO.sub.2 snow cleaner
    Patent number: D403474
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: December 29, 1998
    Assignee: Richard R. Zito R & D Corp.
    Inventor: Richard R. Zito
  • Liquid CO.sub.2 refilling device
    Patent number: D407138
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 23, 1999
    Assignee: Richard R. Zito R & D Corp.
    Inventor: Richard R. Zito