Unusual Sentry Lock

[Squelchtone]

I hope this image shows up. I have had a Sentry 4000 Series Floor Safe for 21 years. It has been locked all that time. The thing is, I have no idea how this lock works. The lady I bought the house from said the safe was empty. Now that I am selling, I want to verify. I have found no one that can identify how this lock operates
Oh, Sentry, they do not know either. My guess is, it is 50 years old or older.
If the image does not show...
There are no numbers.
There is no place to insert a key.
There is a slot that looks like perhaps a metal tool would be inserted into to engage the lock.
There is an arrow embossed on the dial.
The dial looks like a black hockey puck.
Any help would be so appreciated.
Thank you.
Lauren

[billdeserthills]

I actually have a new old stock Sentry floor safe in my shop, where it has been for sale for almost 30 years. Easiest way to get it open is if you have the serial number tag & get the original combo from the factory--something only a locksmith or registered owner can do

BTW: your image no worky

[cledry]

It looks like it might take the old Corkey card access in that slot.

http://www.securitex.com.sg/SECURITEX_CORKEY_CONTROL_SYSTEM_2019.pdf

[Squelchtone]

Your safe isn't 50 years old or older.. it's from the 1980s.

As already mentioned, it sure does look like the Corkey card system. Nice pdf cledry, thanks!

Squelchtone

[stratmando]

I would contact Security.com.sg ,see what they can do. If No Help, The New Owners likely won't have luck and Break in, You may as well.
If the 301S, and has 3 wires, May be able to apply power to activate Solenoid, If wires are for Data, won't work.
Saw a line about it saying "Fail Safe", Meaning with power lost, depleted, it should open.
Any corrections on what I mention, please add. Good Luck

[cledry]

I would contact Security.com.sg ,see what they can do. If No Help, The New Owners likely won't have luck and Break in, You may as well.
If the 301S, and has 3 wires, May be able to apply power to activate Solenoid, If wires are for Data, won't work.
Saw a line about it saying "Fail Safe", Meaning with power lost, depleted, it should open.
Any corrections on what I mention, please add. Good Luck

No power required.

[stratmando]

I saw some use power, if this doesn't require power, must be magnets in card?

[Squelchtone]

It's http://www.securitex.com.sg/index.html
Looks like Google corrected me wrong again.

[nothumbs]

https://www.lockpicking101.com/viewtopic.php?f=9&t=50890

[stratmando]

Try m.indiamart.com search "Corkey", says it IS magnetic. Nice to buy one, a cheap one may have similar magnet pattern?
We have Magnet Card Reader at our Lodge. Believe it was 6X6, 6 Rows, 6 Columns. A member asked me one time if it could be picked, temporarily, I said Maybe not.
Kept thinking on it, and bought a Magnetic Field Card(think it is magnetic/more likely steel? particles in fluid, you can see the disturbance. Have check from lodges around the country, all had 3 Magnetic Squares inside the card, is made visible by shining light through card, or a compass. So far all have been in a different row, pushing card in a pulling out reveals their location. Then polarity is only concern.
NNN
NNS
NSN
NSS
SNN
SNS
SSN
SSS
Good Luck
I might try thin piece of magnetic material on end of a piece of plastic, and move around inside while turning,
Too much pressure may bind.
Tried to see Link by Squelchtone for Patent, link didn't work. If Someone can find that Patent, would give you some insight
Good Luck some more

[nothumbs]

These may help.
https://patents.google.com/patent/US3995460A/en
https://www.freepatentsonline.com/5267459.html
and
https://books.google.com/books?id=7m41LA8WsvUC&pg=PA557&lpg=PA557&dq=corkey+lock+patent&source=bl&ots=FGu4fRci6f&sig=ACfU3U25TGlnom3jtC3HpGqTfFMetPlgKg&hl=en&sa=X&ved=2ahUKEwi5s7799O3xAhWI9Z4KHewFC-8Q6AEwEXoECBUQAw#v=onepage&q=corkey%20lock%20patent&f=false

[murphsfam]

Thanks so much to everyone. At least now I have a name for the lock. I don't understand why Sentry could not at least given me that much. You guys are great.
murphsfam

Posts: 2
Joined: 27 Mar 2021 7:10

[billdeserthills]

Thanks so much to everyone. At least now I have a name for the lock. I don't understand why Sentry could not at least given me that much. You guys are great.
murphsfam

Posts: 2
Joined: 27 Mar 2021 7:10

Probably nobody at Sentry knows, I sure didn't know Sentry built a corkey operated safe

[cledry]

I have never seen or heard of a Sentry safe using a Corkey, but I immediately recognised it. I would say you have a real rarity there. The safe body has no value. the door and lock do. If it were me, I would remove the back of the safe with a grinder or saw. Then open the door from inside. You can always find another Sentry body if desired.

[mh]

Could be a retrofit someone made because they liked CorKey, or wanted something keyed alike, etc, right?