Inflatable Dumbbells
Frewoini Kassa of Sausalito, California was recently granted a patent (No. 12,005,293) for inflatable dumbbells. In the patent description, Kassa makes the claim that, "Users can inflate the dumbbell devices to a desired weight for customized workouts."
In fact, Kassa makes this claim repeatedly. But how would that work?
A pound of dry air occupies about 13 cubic feet at sea level. So to add 5 pounds to a dumbbell you would need to compress 65 cubic feet of air into it.
By comparison, the air in a tire, compressed to 30 psi, doesn't even add up to a pound.
I'd like to see a working example of one of Kassa's inflatable dumbbells!
via Jeff Steck
In fact, Kassa makes this claim repeatedly. But how would that work?
A pound of dry air occupies about 13 cubic feet at sea level. So to add 5 pounds to a dumbbell you would need to compress 65 cubic feet of air into it.
By comparison, the air in a tire, compressed to 30 psi, doesn't even add up to a pound.
I'd like to see a working example of one of Kassa's inflatable dumbbells!
via Jeff Steck
Comments
I have seen versions of these before. You fill them with water. Presumably this version has some feature that made it patentable.
Posted by Eric Gagen on 06/19/24 at 07:37 AM
I would inflate mine with helium, so I feel I'm getting stronger.
Posted by Virtual in Carnate on 06/22/24 at 09:26 AM
@Eric Gagen
Better for exercising *in* water than with.
Better for exercising *in* water than with.
Posted by Richard Bos on 06/22/24 at 10:00 AM
Category: Exercise and Fitness | Patents