(Squeezing materials.)
Blowing Out an Insect or Dirt from a Drink. Blowing on Peanuts or Other Types of Nuts Mixed with the Shells. Shaking Out a...
could we say that "קיימא (permanence) applies to תופר in conjunction with gluing, taping, sticking, etc.
Various Examples of Sifting and Straining: When Meraked May Be a Rabbinical Prohibition;