Dispensing and mixing apparatus
Latest Wilhelm Keller Patents:
- Static mixer
- Metering device
- Bayonet fastening device for the attachment of an accessory to a multiple component cartridge or dispensing device
- Metering device
- Mixer and multiple component dispensing device assembly and method for the aligned connection of the mixer to the multiple component dispensing device
Claims
2. The combination defined in claim 1 further characterized by:
- means for subjecting the upstream end of the separation means to substantial residual spring pressure against the downstream end of said baffle when the tube is secured to said dispensing device.
3. The combination defined in claim 1 further characterized by:
- said separation means in the inlet end of said mixing tube arranged to direct the fluids in a helical path, and
- the stationary mixing element immediately downstream of said separation set at right angles to said separation means and directing the fluids in an oppositely rotating helical path.
4. The combination defined in claim 3 further characterized by:
- said separation means in the form of one of said mixing elements for optimal preparation of the flow paths of said fluids for subsequent mixing.
Referenced Cited
Patent History
Patent number: RE36235
Type: Grant
Filed: May 27, 1992
Date of Patent: Jun 29, 1999
Assignee: Wilhelm Keller (Rotkreuz)
Inventors: Wilhelm A. Keller (Huenenberg), Sung Jen Chen (Andover, MA)
Primary Examiner: Kevin P. Shaver
Law Firm: McAulay Fisher Nissen Goldberg & Kiel, LLP
Application Number: 7/892,687
Type: Grant
Filed: May 27, 1992
Date of Patent: Jun 29, 1999
Assignee: Wilhelm Keller (Rotkreuz)
Inventors: Wilhelm A. Keller (Huenenberg), Sung Jen Chen (Andover, MA)
Primary Examiner: Kevin P. Shaver
Law Firm: McAulay Fisher Nissen Goldberg & Kiel, LLP
Application Number: 7/892,687
Classifications
Current U.S. Class:
Unitary Reciprocating (222/137);
222/1456;
Helical Ribbon Or Strand (366/339)
International Classification: B67D 552;
International Classification: B67D 552;
