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Logo design credit goes to: tubbadu
The patent for the safety can opener, US5289638A, filed on February 19, 1993, expired on February 19, 2013, due to non-payment of maintenance fees. Google Patents
Regarding the long crank mechanism, US7574808B2, filed on August 10, 2005, is set to expire on December 12, 2025. Unified Patents
Therefore, a combined safety can opener with a long crank could be produced without infringing on these patents after December 12, 2025.
Thank you, hopefully it won't be a long wait after.
Like this
My mother has one of these. She loves it.
That doesn't look like a safety can opener, the ones that cut the side of the rim? Looks like the old style, like a swingline or something.
I forgot all about those!
Cans have been around for quite some time, with it, can openers. Given the proliferation of both, I suspect it's waiting for someone to invent it.
Disclaimer: I'm not a can opener expert, nor am I a patent lawyer, nor do I pretend to be either on the internet, so .. caveat emptor.
Attaching a different crank to a safety can opener yourself would probably do the trick.
Possibly, I'd have to see if they can be taken apart. From memory, I don't recall exactly what the handle fastener looked like, but it seemed like an unadjustable system.
Cut the existing handle off the shaft - most likely the shaft is knurled so the injection-molded plastic will grip it.
Either attach a handle with a clamping mechanism (see motorcycle brake and shifter levers), or simply weld a handle on.
Before I were to go to that much trouble, I'd weld a 1/4 hex shaft on it, so I could use a drill or impact driver.
