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2. Materials for use in vacuum - Wikipedia

   en.wikipedia.org/wiki/Materials_for_use_in_vacuum

   Lubrication of moving parts is a problem for vacuum. Many lubricants have unacceptable outgassing rates, others (e.g. graphite) lose lubricating properties. Vacuum greases are greases with low outgassing. Ramsay grease is an old composition of paraffin wax, vaseline and natural rubber, usable up to about 25 °C, for low vacuums to about 1 Pa.

3. Shop-Vac - Wikipedia

   en.wikipedia.org/wiki/Shop-Vac

   Shop-Vac, also known as Shop-Vac Corporation, is an American wet/dry vacuum manufacturer headquartered in Williamsport, Pennsylvania. Currently, Shop-Vac is owned by Hangzhou GreatStar Industrial and shares a facility with SK Hand Tools .

4. Vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Vacuum_cleaner

   A vacuum cleaner, also known simply as a vacuum, is a device that uses suction, and often agitation, in order to remove dirt and other debris from carpets and hard floors. The dirt is collected into a dust bag or a plastic bin. Vacuum cleaners, which are used in homes as well as in commercial settings, exist in a variety of sizes and types ...

5. List of vacuum cleaners - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_cleaners

   This is a list of vacuum cleaners and robot vacuum cleaner manufacturers. A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors, and optionally from other surfaces as well. The dirt is collected by either a dustbag or a rigid cartridge, which may be emptied and reused.

6. List of vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_tubes

   Directly AC-heated power tubes. 10 – Power triode – Early versions numbered UX-210 or CX-310. 26 – Medium-mu triode, used in early AC radio receivers manufactured in the late 1920s. Used as an RF or AF amplifier, but not as a detector or power output tube – Early versions numbered UX-226 or CX-326.

7. Dyson (company) - Wikipedia

   en.wikipedia.org/wiki/Dyson_(company)

   Dyson Limited, trading as Dyson, is a Singaporean [7] [8] [9] multinational technology company. Founded in 1991 by James Dyson in Malmesbury, England, the company designs and manufactures household appliances such as vacuum cleaners, air purifiers, hand dryers, bladeless fans, heaters, hair dryers, and lights.