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Rad80
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This is a problem that exists in the real world and was solved for some medications and... toothpaste. The

Modern toothpaste tubes are made of plastic and go back to the original shape after squeezing, sucking air in. I am talking about the old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.

Pros:

  • aA toothpaste tube is made of metal,.
  • canCan be filled from the bottom and sealed,.
  • airAir does not flow back in and the exposure to air while pouring is very limited to the opening, which can be quite small. That tiny bit of air-contaminated substance can be discarded on the next usage if the substance is that sensitive,
  • theThe tech level seemsis appropriate,
  • don't recall reading about that system in literature, at least not in a work that dwelled on it, so it's reasonably original for 1998.

This is a problem that exists in the real world and was solved for some medications and... toothpaste. The old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.

Pros:

  • a toothpaste tube is made of metal,
  • can be filled from the bottom and sealed,
  • air does not flow back in and the exposure to air is limited to the opening, which can be quite small. That tiny bit of air-contaminated substance can be discarded on the next usage if the substance is that sensitive,
  • the tech level seems appropriate,
  • don't recall reading about that system in literature, at least not in a work that dwelled on it, so it's reasonably original.

This is a problem that exists in the real world and was solved for some medications and... toothpaste.

Modern toothpaste tubes are made of plastic and go back to the original shape after squeezing, sucking air in. I am talking about the old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.

Pros:

  • A toothpaste tube is made of metal.
  • Can be filled from the bottom and sealed.
  • Air does not flow back in and the exposure to air while pouring is very limited.
  • The tech level is appropriate for 1998.
expanded
Source Link
Rad80
Rad80
  • 401
  • 2
  • 6

This is a problem solvedthat exists in the real world and was solved for some medications and... toothpaste. The old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.

Pros:

  • a toothpaste tube is made of metal,
  • can be filled from the bottom and sealed,
  • air does not flow back in and the exposure to air is limited to the opening, which can be quite small. That tiny bit of air-contaminated substance can be discarded on the next usage if the substance is that sensitive,
  • the tech level seems appropriate,
  • don't recall reading about that system in literature, at least not in a work that dwelled on it, so it's reasonably original.

This is a problem solved in the real world for some medications and... toothpaste. The old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.

This is a problem that exists in the real world and was solved for some medications and... toothpaste. The old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.

Pros:

  • a toothpaste tube is made of metal,
  • can be filled from the bottom and sealed,
  • air does not flow back in and the exposure to air is limited to the opening, which can be quite small. That tiny bit of air-contaminated substance can be discarded on the next usage if the substance is that sensitive,
  • the tech level seems appropriate,
  • don't recall reading about that system in literature, at least not in a work that dwelled on it, so it's reasonably original.
Source Link
Rad80
Rad80
  • 401
  • 2
  • 6

This is a problem solved in the real world for some medications and... toothpaste. The old metal kind that you'd have to squeeze from the bottom and doesn't recover the original shape.