1. A captive screw installed in a mounting through hole of a first panel frame and adapted and detachably fastenable to a mounting screw hole of a second panel frame to lock said second panel frame to said first panel frame, the captive screw comprising:
a mounting barrel, said mounting barrel comprising a center hole extending through top and bottom ends thereof, a top stop flange extending around the periphery of the top end thereof, a contracted bottom mounting portion axially extended from the bottom end thereof and affixed to the mounting through hole of said first panel frame and an inside step extending around an inside wall thereof inside said center hole;
a lock screw insertable through the center hole of said mounting barrel and detachably fastenable to the mounting screw hole of said second panel frame to lock said second panel frame to said first panel frame, said lock screw comprising a head having opposing top and bottom walls, a threaded shank extended from the bottom wall of said head for fastening to the mounting screw hole of said second panel frame, and a top protrusion raised from the top wall of said head for the positioning of a hand tool to be operated to drive said lock screw into the mounting screw hole of said second panel frame;
a cap-shaped knob molded on the head of said lock screw by insert molding and defining therein a receiving space around said threaded shank of said lock screw and an endless isolation groove on the top wall of said head of said lock screw around the periphery of said top protrusion, said cap-shaped knob comprising a bottom coupling flange suspending in a bottom side of said receiving space and axially slidably coupled to the periphery of said mounting barrel and stoppable at a bottom side of said top stop flange of said mounting barrel; and
a spring member sleeved onto said threaded shank of said lock screw and stopped between the bottom wall of said head of said lock screw and the inside step of said mounting barrel.
2. The captive screw as claimed in claim 1, wherein said cap-shaped knob is made from an insulative material, having an embossed pattern located on the periphery thereof in the form of a series of V-shaped, U-shaped, N-shaped or S-shaped teeth or an array of raised portions.
3. The captive screw as claimed in claim 2, wherein said insulative material is selected from the group consisting of plastics, rubber and acrylic; said cap-shaped knob further comprises a decorative design located on a top wall thereof around said top protrusion of said lock screw, said decorative design comprising a plurality of recessed portions andor raised portions.
4. The captive screw as claimed in claim 1, wherein said lock screw further comprises a hand tool positioning means in one of the forms of keystone groove, crossed groove, hexagonal groove, polygonal groove, keystone rib, crossed rib, hexagonal rib and polygonal rib for the positioning of a hand tool rotatable to drive said lock screw into said mounting screw hole of said second panel frame.
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. A fluid conditioning module comprising: a pump and at least one additional conditioning device, wherein the pump generates a fluid cycle of at least one fluid to be conditioned between a fluid sump, the pump and the conditioning device, and wherein the at least one fluid is substantially at rest in the fluid sump.
2. The fluid conditioning module according to claim 1, wherein the additional conditioning device is at least one of a filter device, a drying device and a heat exchanger device.
3. The fluid conditioning module according to claim 1, wherein the conditioning module has at least one inlet and one outlet, which both are directly connected to the fluid sump.
4. The fluid conditioning module according to claim 3, wherein at least one seal is provided in at least one of the inlet and the outlet.
5. The fluid conditioning module according to claim 1, wherein the pump is a micro annular gear pump for a low operating pressure.
6. The fluid conditioning module according to claim 1, wherein the pump is a miniature gear pump.
7. The fluid conditioning module according to claim 2, wherein the heat exchanger device is a self-sufficient air-cooled fluid heat exchanger with plates and air fins.
8. The fluid conditioning module according to claim 2, wherein the heat exchanger device is a fluid-cooled heat exchanger with plates.
9. The fluid conditioning module according to claim 2, wherein the heat exchanger device is a self-sufficient air-cooled heat exchanger with at least one of flat tubes, air fins and collector tubes.
10. The fluid conditioning module according to claim 1, wherein an aperture of the inlet to the conditioning module is arranged at a spatially large distance to an aperture of the outlet in the fluid sump.
11. A motor vehicle, comprising: at least one conditioning module having at least one conditioning device;
at least one pump; and
a fluid sump, wherein the pump generates a fluid cycle of at least one fluid to be conditioned between the fluid sump, the pump and the conditioning device, and wherein the at least one fluid is substantially at rest in the fluid sump.
12. (canceled)
13. The fluid conditioning module according to claim 1, wherein the at least one fluid is at least one of a differential oil and a battery fluid.
14. The motor vehicle according to claim 11, wherein the additional conditioning device is at least one of a filter device, a drying device and a heat exchanger device.
15. The motor vehicle according to claim 11, wherein the conditioning module has at least one inlet and one outlet, which both are directly connected to the fluid sump.
16. The motor vehicle according to claim 15, wherein at least one seal is provided in at least one of the inlet and the outlet.
17. The motor vehicle according to claim 11, wherein the pump is at least one of a miniature gear pump and a micro annular gear pump for a low operating pressure.
18. The motor vehicle according to claim 14, wherein the heat exchanger device is a self-sufficient air-cooled fluid heat exchanger with plates and air fins.
19. The motor vehicle according to claim 14, wherein the heat exchanger device is a fluid-cooled heat exchanger with plates.
20. The motor vehicle according to claim 14 wherein the heat exchanger device is a self-sufficient air-cooled heat exchanger with at least one of flat tubes, air fins and collector tubes.
21. The motor vehicle according to claim 11, wherein an aperture of the inlet to the conditioning module is arranged at a spatially large distance to an aperture of the outlet in the fluid sump.