Compact Silencer Patent _ Lau

[Historian]

Compact space-saving gun silencer:
<< https://patents.google.com/patent/US9714805 >>

This design reminiscent of Don Walsh's unique
self-aligning central tube, no baffles to get out of alignment,
where all gas vented into the main tube, expanded,
then forced out of the 'snorkel' rest of tube.

The innovations are satisfying to see.

What has Percy Maxim wrought.

[whiterussian1974]

Looks interesting. I wonder where I've seen this before? viewtopic.php?f=10&t=121297

I wonder if you, me and Capt Link can get a slice of that sweet Licensing Fee for developing the Conceptual Basis for this design, even though we never spent the money to apply for a US Patent?

And Capt Link mentioned that Mickey Finn had a similar idea much earlier than mine: https://patents.google.com/patent/US438 ... es+A.+Finn

I still think that a conical baffle stack moving forward would be better than the perforated snorkel, as the snorkel won't create turbulence.

The good Capt said that the segment moving forward can lower dBs up to 10dB. Not bad IMHO.

Thank you for bringing up these ideas. They help restimulate the grey matter and keep our right brain hemisphere looking for innovative applications for variable geometry and unorthodox designs.

[Historian]

Brother WR, your observation " .... as the snorkel won't create turbulence...""
my non-submitted 1983 application* had the added fillip on
Don's 'single-selfaligning -steel tube with first third cut out' -
was a milled out spiral twist diffuser.


Metaphor: 'barber pole spiral ' opposing slots with one
twist out first ⅓ of the tube.

E.g., << https://www.etsy.com/listing/896159232/ ... -1-5&frs=1 >>>

Twist diffusers spin the high
pressure gas counter-clockwise into the intervening space between the
concentric perforated tube. Then further turbulence/randomizing is introduced
as gas seeps into the outside the perforated tube through the many holes.

Perforated tube geometry: << https://www.4statetrucks.com/exhaust/se ... gJ3S_D_BwE >>

Adding 'Chore Girl' copper mesh between can wall and perforated SS tube
would emulate Frankford Arsenal Report's experimental honey-comb system.

Note that the perfect central tube alignment is not affected by milling
'barber pole' slots.

* A humorous name for this patent was going to be "Twisted Sister" after the American
Heavy Metal Band

[whiterussian1974]

I worried that my post would seem negative or dismissive. I'm glad that you clarified with the additions that you mentioned.

Good ideas on the modifications to the patent that you posted.
I never doubt that you will come up with great concepts or simple "twists" that will improve upon design and production.
Maybe you could Trademark your design and sell it to someone who could make a run of them, or even on-demand 3D print?
I hope that you are staying warm and healthy during these times, my Friend.
You are my other ST and 3% Brothers and Sisters are in my daily thoughts and prayers.
I mention you at least twice a week at mealtime Blessings.

We have to stick together even closer during these troubling times. Hopefully things will improve by Spring of next year.

[Historian]

Same constant 'Good Vibes' to you and your family Brother WR!

The 'twist gas diffuser' concept for a suppressor tube was
talked about in a section in Parker's magnificent tome.

My 1983 planned patent submission took fast back burner
( as those of us in that era remember )
when a major 'turbulence' hit our warriors. All 'community' attention
was focused on 'who, what, where' and ..we will get you, MFs".
Coming up soon to 40 years?? Holy Bat-Guano, Batman.

Don Walsh's parallel concept of a central rigid alignment-tube/snorkel
that was screwed directly onto barrel, with an alignment accuracy to .005" over 12",
and vented into a surrounding can, was brilliant.
His patent estimated it good for cans in the range of .22 to 9mm.

A very Merry Christmas, Happy חַג הַאוּרִים, Celtic Mid Winter Sacrifices, etc.
to all brethren here that contribute to this happy secluded off-shoot tributary of male
'arms-testosterone-poisoning'.

Best to all.

[Historian]

Addendum:

For those interested, enter into Google Search

"Patent 5,136,923 _ AUG. 11, 1992"

and you can get a free download PDF of 'Donald. J. Walsh, Jr.
Arlington VA."

Also excellent review by N.R. Parker, "Firearm Suppressor Patents" p.223.
Don's patent included actual Db. readings for weapons in various
configurations such as with and without core mesh packing.

As mentioned my version had an added concentric perforated spool
between central inner tube core and outer can wall which could be filled with mesh.
Repeating, first third of inner tube milled with spiral twist gas diffuser ⅓ length
of total inner tube.

Minimum machining.

As old 1950's Institute Machine Shop wall motto:
"We May Not Do Good Work
But We are Slow"


Free use to all.

[whiterussian1974]

And here is a cutaway showing the internals. I think that this has some promise.
Use only 4 cones worth of snorkel and allow it to slide forward under pressure. Then manually reset btwn shots.
Your idea would weigh far less and require less machining than this specimen. (Posted for reference only.)

A porous endcap is something that I'd like to see metered.

[whiterussian1974]

Would ATF require a Tax Stamp for a disposable Dry Ice can?

Probably.

[ammodotcom]

Would ATF require a Tax Stamp for a disposable Dry Ice can?

Probably.

They'll tax your butter knives if given the green light.