Machine element for use in liquid treating system

• US 5,112,486 A
• Filed: 06/28/1990
• Issued: 05/12/1992
• Est. Priority Date: 02/12/1988
• Status: Expired due to Fees

• Current Assignee: Sinanen Company Limited
• Original Assignee: Suntory Ltd (Kotobuki Realty Co., Ltd.), Shinanen New Ceramic Corporation, Takuma Company Limited
• Inventors: Shiraishi, Masanori, Matsumoto, Nobuya, Masuda, Mitsunobu, Fujiwara, Goro
• Primary Examiner(s): CINTINS, IVARS C
• Application Number:
  US07/545,763
• Time in Patent Office: 684 Days
• Field of Search: 106/15.05, 210/501, 210/502, 210/348, 210/416.1, 424/618
• US Class Current: 210/416.1
• CPC Class Codes: A61L 2/16 using chemical substances
• CPC Class Codes: B01D 61/10 Accessories; Auxiliary operations
• CPC Class Codes: C02F 1/505 by oligodynamic treatment

Abstract

Disclosed is a machine element for use in a liquid treating system. The machine element has an antibacterial property at least at a portion thereof which is to come into contact with the treated liquid in the course of system operation.

Claims

1. In a liquid treating system comprising liquid contacting structural machine elements of packings, o-rings, gaskets, films, plates, valves, filters, couplers, connectors, pipes, bolts, sealing members, pumps, couples and containers the improvement wherein a liquid-contact portion of at least one of said structural machine elements consists of a resin material having antibacterially active zeolite fine particles bonded with at least two metal ions selected from the group consisting of Ag and Zn ion in a ratio of about 1:

3 or Ag ion with remaining exchange groups bonded with Na, Sn or Cu.

2. The liquid treating system as defined in claim 1, wherein said resin material forming the liquid-contact portion of the structural machine elements of the system is a resin selected from at least one of the group consisting of polystyrene resin, polyvinylchloride resin, polyolefin resin, phenol-type strong acid cation exchange resin, weak acid cation exchange resin, ABS resin and FRP resin.

3. The liquid treating system of claim 2 wherein said resin consists of from 0.01 to 25 wt % of said antibacterially active zeolite fine particles relative to said resin.