Claims
- 1. A method of manufacturing a hollow ceramic body comprising the steps of:
- forming a first of two green body portions of ceramic material, said first portion having integrally formed thereon a diaphragm confining a first side of a cavity formed within said first portion having an essentially cylindrical peripheral shape;
- forming a second of said two green body portions of ceramic material having an essentially cylindrical outer peripheral shape complementary to said cylindrical shape of said cavity and being provided with a through-passage;
- fitting said two green body portions together at their peripheral surfaces to form a combined green ceramic body; and
- burning said so-formed green body, said two portions forming said hollow ceramic body having said cavity therein said through passage leading to said cavity for fluid path thereto.
- 2. The method of claim 1, wherein said forming step of said first portion comprises urging two movable mold portions against said ceramic material filled in a stationary mold portion, one of said movable mold portions for forming said diaphragm being adjustable relative to said other mold portion for varying the thickness of said diaphragm.
- 3. The method of claim 1, wherein said essential cylindrical surfaces of said two green portions are slightly tapered.
- 4. The method of claim 1, wherein a connecting joint is formed to said second portion of said body including said through-passage and being adapted for direct connection and mounting to a fluid path means.
- 5. The method of claim 4, wherein said connecting joint is a threading.
- 6. The method of claim 1, wherein a connecting joint is formed to one of said green portions of said body including said through-passage and being adapted for direct connection and mounting to a fluid path means.
- 7. The method of claim 6, wherein said connecting joint comprises a threading.
- 8. A method of manufacturing a ceramic sensor body comprising the steps:
- forming a first of two green body portions of ceramic material, said first portion having integrally formed thereon a diaphragm confining a first side of a cavity formed within said first portion having an essentially cylindrical peripheral shape;
- forming a second of said two green body portions of ceramic material having an essentially cylindrical outer peripheral shape complementary to said cylindrical shape of said cavity and being provided with a through-passage;
- fitting said two green body portions together at their peripheral surfaces to form a combined green ceramic body; and
- burning said so-formed green body, said two portions forming said ceramic sensor body having said cavity therein said through passage leading to said cavity for fluid path thereto; and
- applying sensor means to said diaphragm.
- 9. The method of claim 8, wherein said forming step of said first portion comprises urging two movable mold portions against said ceramic material filled in a stationary mold portion, one of said movable mold portions for forming said diaphragm being adjustable relative to said other mold portion for varying the thickness of said diaphragm.
- 10. The method of claim 8, wherein said essential cylindrical surfaces of said two green portions are slightly tapered.
Priority Claims (3)
Number |
Date |
Country |
Kind |
3907202 |
Mar 1989 |
DEX |
|
3919411 |
Jun 1989 |
DEX |
|
4026044 |
Aug 1990 |
DEX |
|
Parent Case Info
This is a continuation-in-part application of parent application U.S. Ser. No. 627,103, filed Dec. 13, 1990, abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4984468 |
Hafner |
Jan 1991 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
627103 |
Dec 1990 |
|