Title: Elastic suspension or support for a ceramic monolithic catalyzer body

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Claims: Having thus described the invention, what we claim as new and desire to be secured by Letters Patent, is as follows:

1. An apparatus for decontaminating exhaust gases comprising a monolithic catalyst body suitable for removing toxic gases from an exhaust gas passage, including

an elastic holder, resiliently suspending said monolithic catalyst body, comprising:

a rigid metallic housing having an inlet opening and an outlet opening and forming the outer wall of said exhaust gas passage;

resilient means operable to provide resilient pressure to a support means and being disposed within said housing near said openings;

a sleeve circumferentially disposed about the monolithic catalyst body and disposed in said housing therewith and including means operable to restrain substantial axial movement of the body relative to the sleeve, and

said support means operable to support said sleeve, being disposed near an end of said sleeve and being operably engaged with said resilient means, said support means and said sleeve having matching annular chamfers at adjacent ends thereof interengaging under the pressure of said resilient means whereby said support means supports and centers said sleeve.

2. An apparatus as claimed in claim 1, further comprising a heat resistant sealing material between said sleeve and the monolithic catalyst body.

3. An apparatus as claimed in claim 2, wherein said heat resistant sealing material comprises ceramic wool.

4. An apparatus as claimed in claim 1, further comprising at least one slot defined in said sleeve and extending between the ends thereof whereby a radial pressure component that results from the interengagement of said matching annular chamfers, presses said sleeve onto the circumference of the monolithic catalyst body.

5. An apparatus as claimed in claim 4, further comprising strip means for covering each said slot to restrain the escape of gases from said sleeve.

6. An apparatus as claimed in claim 4, wherein said resilient means comprises a resilient corrugated device operable to form a substantially gas-tight seal between said support means and said housing.

7. An apparatus as claimed in claim 1, wherein said resilient means comprises a resilient corrugated device operable to form a substantially gas-tight seal between said support means and said housing.

8. An apparatus as claimed in claim 7, wherein said resilient means comprises a resilient corrugated wall.

9. An apparatus as claimed in claim 7, wherein said resilient means comprises a flexible corrugated wall and a compression spring disposed around said corrugated wall.

Other info:

Inventors: Musall, Reimar (Hannover, DT)
Wolsing, Wilhelm (Hannover, DT)

Application Number: 349477
Filing Date: 1973-04-09
Publication_date: 1976-03-30
Assignee: Kali-Chemie AG (Hannover, DT)
Primary Class(es): 422/179 138/108, 138/112
Other Classes:
US Patent Ref:

2506293	May, 1950	Copeland	285/299.
2850365	Sep, 1958	Adey et al.	23/288.
2853368	Sep, 1958	Adey	23/288.
3094394	Jun, 1963	Innes et al.	23/288.
3197287	Jul, 1965	Innes et al.	23/288.
3211534	Oct, 1965	Ridgway	23/288.
3248188	Apr, 1966	Chute	23/288.
3441381	Apr, 1969	Keith et al.	23/288.
3441382	Apr, 1969	Keith et al.	23/288.
3597165	Aug, 1971	Keith et al.	23/288.
3692497	Sep, 1972	Keith et al.	23/288.
3785781	Jan, 1974	Hervert et al.	23/288.
3787944	Jan, 1974	Mittman	29/451.
3798006	Mar, 1974	Balluff	23/288.
3801289	Apr, 1974	Wiley	23/288.
3841842	Oct, 1974	Wiley	23/288.

Other Refs: 791,117

Jul, 1968	CA

Primary Examiner: Richman, Barry S.
Assistant Examiner:
Attorney: Marmorek; Ernest F.