US9707493B2 - Cold trap - Google Patents

In a cold trap provided between a vacuum chamber and a vacuum pump for the vacuum chamber, a cold panel is located in an exhaust passage from an exhaust port of the vacuum chamber to an intake port of the vacuum pump. A cold panel chamber includes an entrance that connects the exhaust passage to the exhaust port of the vacuum chamber, and …

US2978443A - Ash removal from polymerization products ...

US2978443A US665297A US66529757A US2978443A US 2978443 A US2978443 A US 2978443A US 665297 A US665297 A US 665297A US 66529757 A US66529757 A US 66529757A US 2978443 A US2978443 A US 2978443A Authority US United States Prior art keywords catalyst polymer zone polymerization line Prior art date Legal status …

US602784A - trapp - Google Patents

US602784A - trapp - Google Patents trapp . Download PDF Info Publication number US602784A. US602784A US602784DA US602784A US 602784 A US602784 A US 602784A US 602784D A US602784D A US 602784DA US 602784 A US602784 A US 602784A Authority US United States Prior art keywords rods wheel bicycle shaft dog Prior art date Legal …

US9939046B2 - Chain trap - Google Patents

US9939046B2 US14/930,513 US201514930513A US9939046B2 US 9939046 B2 US9939046 B2 US 9939046B2 US 201514930513 A US201514930513 A US 201514930513A US 9939046 B2 US9939046 B2 US 9939046B2 Authority US United States Prior art keywords chain trap chain trap shoulder vertical Prior art date Legal status (The legal status is an …

patent us gold trap - uslugikoparko-ladowarka.pl

patent us gold trap. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals. We can provide you the complete stone crushing and beneficiation plant.We also supply stand-alone crushers, mills and …

US585927A - trapp - Google Patents

US585927A - trapp - Google Patents trapp . Download PDF Info Publication number US585927A. US585927A US585927DA US585927A US 585927 A US585927 A US 585927A US 585927D A US585927D A US 585927DA US 585927 A US585927 A US 585927A Authority US United States Prior art keywords valve pipe air reservoir piston Prior art date Legal …

US3060623A - Animal trap - Google Patents

The trap is set by pressing the spikes 15, 16 into the ground adjacent a spot Where the animal will be likely to step and the animal may be induced …

US269766A - Animal-trap - Google Patents

This treadle is first made to catch over the frontend of the lever D, whichsets the trap, and then the treadle is forced into-the animals hole or burrow. The animal, in corning out, steps upon the treadle and presses the treadle down, which releases the lever, when the spring immediately causes the lever to fly upward and the rod then forces back the trigger and causes the fire-arm …

US602489A - trapp - Google Patents

US602489A - trapp - Google Patents trapp . Download PDF Info Publication number US602489A. US602489A US602489DA US602489A US 602489 A US602489 A US 602489A US 602489D A US602489D A US 602489DA US 602489 A US602489 A US 602489A Authority US United States Prior art keywords nut standard spindle leg collar Prior art date …

US5927508A - Method and apparatus for recovering fine gold ...

In operation, an aqueous slurry of particulate gold-bearing ore is flowed by gravity over the assembly of layers on the sluice frame. Larger particles of gold are …