What is claimed is:
1. A brake cylinder comprising a caliper formed with a cylinder, a brake piston mounted in said cylinder, and a cylinder cover fixed to said caliper to close one end of said cylinder, characterized in that said cylinder cover is fixed by inserting it into a large-diameter hole formed at the rear of said cylinder to abut it against an end face of the large-diameter hole and caulking said caliper or said cylinder cover.
2. A brake cylinder comprising a caliper formed with a cylinder, a brake piston mounted in said cylinder, and a cylinder cover fixed to said caliper to close one end of said cylinder, characterized in that the thickness of the outer peripheral portion of said cylinder cover where fixing by caulking is carried out is thicker than the thickness at the central portion of said cylinder cover.
3. The disc brake as claimed in claim 1 or 2 wherein a sealing agent is charged between the inner surface of said caliper and the outer peripheral surface of said cylinder cover to liquid-tightly seal between said caliper and said cylinder cover.
4. The disc brake as claimed in claim 1 or 2 wherein a heat-shrinkable tube is mounted on the outer periphery of said cylinder cover to liquid-tightly seal between said caliper and cylinder cover.
5. The disk as claimed in claim 1 or 2 wherein said cylinder cover to liquid-tightly fitted in said cylinder with an interference.
6. The disk brake as claimed in claim 1 or 2 wherein a recess is formed in the inner surface of said cylinder cover, said recess having a larger diameter than the outer diameter of said brake piston mounted in said cylinder so that part of said brake piston will be received in said recess.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An apparatus for producing ions from chemical species comprising:
a) an ion source operated substantially at atmospheric pressure, comprising a probe to produce ions from sample bearing solutions;
b) a needle configured both to withdraw a sample bearing solution from a vial and to spray said solution from said probe after insertion therein; and
c) a means for delivering said ions into a vacuum region.
2. The apparatus of claim 1, further comprising means for mass analyzing said ions wherein said ion source is an Electrospray source.
3. The apparatus of claim 2, wherein said means for mass analyzing said ions comprises a mass analyzer selected from the group consisting of: a Time-Of-Flight mass spectrometer, a Quadrupole mass spectrometer, an Ion Trap mass spectrometer, a Fourier Transform mass spectrometer, a magnetic sector mass spectrometer, or a hybrid mass spectrometer.
4. The apparatus of claim 1, wherein said ion source is selected from the group consisting of: an Electrospray source, an Electrospray source with pneumatic assist means, an Electrospray source with ultrasonic assist means, an Electrospray source with nebulization assist means, an Electrospray source comprising two, three or more tube layers, an Atmospheric Pressure Chemical Ionization source, an Atmospheric Pressure Chemical Ionization source with pneumatic assist means, an Atmospheric Pressure Chemical Ionization source with ultrasonic assist means, an Atmospheric Pressure Chemical Ionization source with nebulization assist means, an Atmospheric Pressure Chemical Ionization source comprising two, three or more tube layers.
5. The apparatus of claim 1, wherein said needle is a syringe.
6. The apparatus of claim 1, wherein said needle is an injection needle and storage reservoir from an autoinjector.
7. The apparatus of claim 6, wherein said injection needle is an injection needle with its needle filled with a liquid chromatography material for desalting of the sample.
8. The apparatus of claim 6, wherein said injection needle is an injection needle with its needle filled with a liquid chromatography material and said storage reservoir is partially filled with a liquid chromatography material for desalting of the sample.
9. The apparatus of claim 6, wherein said storage reservoir is partially filled with a liquid chromatography material for desalting of the sample.
10. The apparatus of claim 6, wherein said injection needle is an injection needle with its needle filled with a liquid chromatography material for liquid chromatography separations.
11. The apparatus of claim 6, wherein said injection needle is an injection needle filled with a liquid chromatography material and said storage reservoir is partially filled with a liquid chromatography material for liquid chromatography separations.
12. The apparatus of claim 6, wherein said storage reservoir is partially filled with a liquid chromatography material for liquid chromatography separations.
13. The apparatus of claim 6, wherein said injection needle is an injection needle having an inside surface along said needle, wherein said inside surface is coated with a liquid chromatography material for desalting of the sample.
14. The apparatus of claim 6, wherein said injection needle is an injection needle having an inside surface along said needle, wherein said inside surface is coated with a liquid chromatography material and said storage reservoir is partially coated with a liquid chromatography material for desalting of the sample.
15. The apparatus of claim 6, wherein said storage reservoir is partially coated with a liquid chromatography material for desalting of the sample.
16. The apparatus of claim 6, wherein said injection needle is an injection needle having an inside surface along said needle, wherein said inside surface is coated with a liquid chromatography material for liquid chromatography separations.
17. The apparatus of claim 6, wherein said injection needle is an injection needle having an inside surface along said needle, wherein said inside surface is coated with a liquid chromatography material and said storage reservoir is partially coated with a liquid chromatography material for liquid chromatography separations.
18. The apparatus of claim 6, wherein said storage reservoir is partially coated with a liquid chromatography material for liquid chromatography separations.
19. The apparatus of claim 6, wherein said injection needle is an injection needle having an inside surface along said needle, wherein said inside surface is coated with a liquid chromatography material and said storage reservoir is partially coated with a liquid chromatography material for liquid chromatography separations.
20. The apparatus of claim 1, wherein said needle comprises an electrically conductive material to form an electrode.