Thread Number: 97740  /  Tag: Vintage Automatic Washers
Corkscrew Agitators
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Post# 1226667   3/16/2025 at 22:46 by Launderess (Quiet Please, There´s a Lady on Stage)        

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Load sensing, corkscrew or whatever you want to call them such agitators seemed to have taken off in past.

IIRC Kenmore had them first, then when patents expired (if that is reason) everyone and their mother had a version.

Kenmore:





Whirlpool:





KitchenAid:













Even Maytag got on the bandwagon:





Are these sort of agitators that much better than other designs? What gives?





Post# 1226670 , Reply# 1   3/16/2025 at 23:00 by Agiflow (Toms River)        

I think these agitators are better suited to the direct drives and VMW Whirlpool designs.

From personal opinion, I don't think Kenmore even needed to add that agitator.

My 1974 jumbo capacity Kenmore with its Penta-Swirl handles huge loads just fine. Even with very full loads it turns things over.









Post# 1226671 , Reply# 2   3/16/2025 at 23:06 by DaveAMKrayoGuy (Oak Park, MI)        

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I miss my corkscrew agitatior and a Kenmore direct-drive was where I had mine...

Sears used them on their Kenmore-line first, then Whirlpool acquired them, and I think when the direct-drive got introduced...

I am pretty sure my new 2-year old Maytag has a regular agitator and the entire tub is what actually spins...



-- Dave


Post# 1226675 , Reply# 3   3/16/2025 at 23:17 by GELaundry4ever (Nacogdoches, TX, USA (considering moving to Temple, Texas))        
GE!

I had a GE with a corkscrew agitator in 2001. It did the job. Don't forget GE! You forgot GE!

Post# 1226677 , Reply# 4   3/16/2025 at 23:50 by DADoES (TX, U.S. of A.)        

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I'm of the understanding that Whirlpool developed the design, introduced via Kenmore circa 1976 and had an agreement with Sears for it to be a Kenmore exclusive for 10-ish years ... which prevented WP from featuring such on the other brands it produced until into the direct-drive era.  Non-WP brands presumably couldn't have it until the patent expired, which I believe is 20 years.  The earliest WP patent for a DA that I have saved from the daily rotation is "filed 5/8/1975."  Three others filed 6/16/1976, 10/26/1976, and 8/31/1993.


Post# 1226682 , Reply# 5   3/17/2025 at 00:33 by Launderess (Quiet Please, There´s a Lady on Stage)        
Oh all right!

launderess's profile picture
Here's GE courtesy of AW family member:






Post# 1226684 , Reply# 6   3/17/2025 at 00:41 by Launderess (Quiet Please, There´s a Lady on Stage)        

launderess's profile picture
KitchenAid gets my vote!






Post# 1226685 , Reply# 7   3/17/2025 at 01:26 by Agiflow (Toms River)        

Not too crazy about the design of that GE agitator. It looks like a cheese grater with big fins. Too bad it didn't have a Filter-Flo. We would see how much lint that sucker makes.

Post# 1226688 , Reply# 8   3/17/2025 at 03:40 by Launderess (Quiet Please, There´s a Lady on Stage)        

launderess's profile picture
Lorain Appliances did an update video on Maytag commercial washer which also has corkscrew agitator.

Looks like wrestling. *LOL*






Post# 1226693 , Reply# 9   3/17/2025 at 05:41 by DaveAMKrayoGuy (Oak Park, MI)        

daveamkrayoguy's profile picture

White-Westinghouse actually had a dual-action, I'd seen in an ad:

 

The Dual-Action Penta-Flex...

 

 

 

-- Dave


Post# 1226706 , Reply# 10   3/17/2025 at 11:09 by johnb300m (Chicago)        

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NEVER FORGET GE!!!!
GE!
GE!
Even though their washers after the FF were
sTuPiD sTuPiD sTuPiD! /s


Post# 1226707 , Reply# 11   3/17/2025 at 12:20 by maytaga806 (Howell, Michigan)        

They were what was needed for the proper cleaning action in the direct drives. But I love a good straight vane like the Maytag powerfins. The straight vanes in the DDs are garbage agitators. It seems that once whirlpool launched the direct drive with the dual actions, other brands copied them years later. Like Maytag and ge did.

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Post# 1226709 , Reply# 12   3/17/2025 at 12:41 by johnb300m (Chicago)        

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Thinking about this more, it seems that the WP DDs needed that corkscrew agitator more than others. Their tubs seemed narrower than others. Especially the large capacity units with an extra deep and narrow tub, needed help to push items down to the fins.

Post# 1226733 , Reply# 13   3/17/2025 at 21:59 by Tomturbomatic (Beltsville, MD)        

I use my KA when I wash my king blanket. I fill the tub to the lowest water level add detergent and the blanket. Then I pull the drain hose out of the pipe and set the timer to drain and use it like one of the Calypso/Resource savers holding the drain hose into the tub to force water through the spinning blanket without any abrasive agitation. I stop it and let it soak for a few minutes then do a few more minutes of washing before placing the drain hose in the pipe and letting it drain and spin. I do a full water level rinse with gentle agitation then spin it in the W1986 before a quick tumble to dry. It is a wonderful washing machine and there are times when you just have to use the extra water and give the sewage pipes a good blowout.

Post# 1226735 , Reply# 14   3/17/2025 at 23:41 by GELaundry4ever (Nacogdoches, TX, USA (considering moving to Temple, Texas))        
GE!

Yes, it was stupid what GE did! All things considered, it did get my clothes clean even though it felt cheap and shook violently during normal/fast agitation.

Post# 1226778 , Reply# 15   3/18/2025 at 18:53 by neptunebob (Pittsburgh, PA)        
Was not invented by Sears

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The spiral that is a dual action agitator was an invention of the Greek mathemetician Archimedes. I guess he was not as well known as Leonard di Vinci.

Post# 1226782 , Reply# 16   3/18/2025 at 19:33 by Agiflow (Toms River)        
Reply#11

Wouldn't say the straight vanes were garbage. The four and five vain lint barrel agitators were quite effective in rolling large loads over. Those wavy and straight vanes made the difference.

Post# 1226809 , Reply# 17   3/19/2025 at 06:35 by Combo52 (50 Year Repair Tech Beltsville,Md)        
The dual action agitator

combo52's profile picture

Was invented by whirlpool and Patented by them, Sears bought an exclusive 10 year right to use it, whirlpool did not realize how successful it would be and how it would revolutionized top load washers, whirlpool executives expressed regret to me that they had given Sears such a long lead on it.

 

The dual action agitator was simply more effective at turning loads over than any other type of agitator in especially in a large tub machine even the Frigidaire one to 18s could not compete, Consumer reports called at the greatest advance in washing machines in 40 years.

 

While almost any agitator will turn over loads of laundry if the machine isn’t packed too full, the dual action agitator simply allowed you to wash a lot more clothing, which made top loading washers, a little more energy, efficient and extended their stay in the marketplace.

 

The two piece stool action agitator has been phased out because machines do not fill with enough water any longer for it to be effective. The real interest in great washers is in front loading washers today.

 

John L




This post was last edited 03/19/2025 at 09:19
Post# 1226810 , Reply# 18   3/19/2025 at 08:56 by johnb300m (Chicago)        
Ooooph

johnb300m's profile picture
Speech to text I see.

Post# 1226812 , Reply# 19   3/19/2025 at 10:19 by Agiflow (Toms River)        

I don't see the need for a DAA in a large capacity belt drive with a wide tub.

The direct drives needed them more and the VMW platform definitely benefits more from them.

I've got two super capacity belt drives without dual action agitators and I've loaded both of them up to the tub ring and still get turnover.

The Penta Swirl I find is a powerful yet gentle agitator. It has that soothing wavy wash action that's even more pronounced on bulkier loads.



Just my $.02 🤷


Post# 1226813 , Reply# 20   3/19/2025 at 10:50 by Tolivac (greenville nc)        

I like how Speed Queen does not use a DA agitator. Their current design WORKS without using a DA agitator. I sort of think of SQ as the “Kirby” of washers since they use their tried and proven design.

Post# 1226820 , Reply# 21   3/19/2025 at 11:36 by GELaundry4ever (Nacogdoches, TX, USA (considering moving to Temple, Texas))        
surgilator

What do you think of the surgilator?

Post# 1226823 , Reply# 22   3/19/2025 at 13:10 by Agiflow (Toms River)        

The Surgilator, especially in its last form for the belt drives as the Double Duty is a brute strength knock em down kick butt agitator.

Post# 1226835 , Reply# 23   3/19/2025 at 17:31 by Tolivac (greenville nc)        
Surgilators

This agitator is BETTER than the DA agitators any day. I have owned washers that had the SURGILATORS better by far.

Post# 1226838 , Reply# 24   3/19/2025 at 17:48 by neptunebob (Pittsburgh, PA)        

neptunebob's profile picture
I did not know Whirlpool was in ancient Greece. I would think something like the screw of Archimedes would somehow be in a public domain a long time ago and how would it be patented by Whirlpool?

Post# 1226839 , Reply# 25   3/19/2025 at 17:51 by CircleW (NE Cincinnati OH area)        

In 1976 I was working part time at the Sears Catalog Merchant Store that my mom's friend Faye owned. I remember the Dual-Action agitator being a really big deal, and there was a Lady Kenmore washer with it on display in the store. According to Faye, the reason Sears had it as an exclusive for the amount of time it did, was because Sears was the one footing most of the cost of its development.

Post# 1226846 , Reply# 26   3/19/2025 at 20:42 by Launderess (Quiet Please, There´s a Lady on Stage)        
Mr. Archimedes.

launderess's profile picture
Rest assured the man and his famous invention are quite well known, many may not know what Archimedies screw (or devices based upon it are), but never the less.

From ship propulsion to industrial washing machines, Archimedies screw is well known.

Batch/tunnel washers came about thanks to Mr. Archimedies's invention.









On another note WP sued Maytag over patent infringement when latter introduced their version of "corkscrew" agitator to Canada.

en.wikipedia.org/wiki/Whirlpool_...


www.canlii.org/en/ca/scc/...


Post# 1226849 , Reply# 27   3/19/2025 at 21:02 by Agiflow (Toms River)        

Will say this though that the DAA does give more uniform turnover compared to the Penta Swirl.

I've noticed the 74 Kenmore goes out of balance a lot with that agitator in that jumbo tub.

It is very temperamental with loads that are not of the same weights


Even the surgilator in the 85 machine has more of a uniform turnover and
doesn't go out of balance as easy.

Regardless though I still really like that Penta Swirl. It's a very decent agitator for that large tub.





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Post# 1226870 , Reply# 28   3/20/2025 at 10:20 by DADoES (TX, U.S. of A.)        

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Today's Whirlpool Patent of the Day (dated 1997-07-29, filed 1993-08-31) details improved types of augers with 1) a contoured/curved edge or 2) rubbing nubs on the bottom surface.


Post# 1226872 , Reply# 29   3/20/2025 at 10:57 by Launderess (Quiet Please, There´s a Lady on Stage)        

launderess's profile picture
Is this the new patent design?






Post# 1226892 , Reply# 30   3/20/2025 at 14:30 by GELaundry4ever (Nacogdoches, TX, USA (considering moving to Temple, Texas))        
super surgilator

So what was the difference between the surgilator and the super surgilator?

Post# 1226899 , Reply# 31   3/20/2025 at 16:18 by DADoES (TX, U.S. of A.)        

dadoes's profile picture
 
Super Surgilator had the three large lower fins protruding slightly past the skirt.


Post# 1226900 , Reply# 32   3/20/2025 at 16:57 by GELaundry4ever (Nacogdoches, TX, USA (considering moving to Temple, Texas))        
surgilator and dirt

I like how the surgilator scrubs out ground in dirt without beating the fibers out of your clothes.

Post# 1226901 , Reply# 33   3/20/2025 at 17:39 by DADoES (TX, U.S. of A.)        

dadoes's profile picture
 
All mechanical washing methods cause wear on fabric fibers.


Post# 1226988 , Reply# 34   3/22/2025 at 09:21 by Launderess (Quiet Please, There´s a Lady on Stage)        

launderess's profile picture
If it's roll over that's wanted, this wins bar none.






Post# 1227007 , Reply# 35   3/22/2025 at 15:17 by mickeyd (Hamburg NY)        
Not a fan ~

mickeyd's profile picture
Further homogenization of the former stark originality of all thing washing machine, all the look alike nonsense is depressing when recalling the glories of the once unique panoply of machines at our disposal.

Have an old friend and former colleague who is super smart and multi-talented, but oh what a row we had when he insisted that his whole agitator in his brand new Whirlpool was turning round and round in circles. No washer sense of what a round and round load would look like in a top loader. He always washed full loads of like clothing: "I just washed 25-- TWENTY-FIVE-- shirts," he'd boast. I had to make him watch me fill his Whirlpool to Extra Low with no clothing on gentle speed before he believed me. Doubting Thomas indeed, his name is Tom, and he'll love that I told this story.

Laundress, I have a Whirlpool with the twist monster removed from the agitator and it works just swell without it. Alternativley, I switch in the massive Kitchen-Aid agitator, unmolested, for the rare mega load, or king-sized quilts, or a three blanket load.

Cheers, nice query!


Post# 1227624 , Reply# 36   3/29/2025 at 17:20 by Launderess (Quiet Please, There´s a Lady on Stage)        

launderess's profile picture
Honorable mention, Frigidaire.






Post# 1227823 , Reply# 37   4/1/2025 at 16:01 by Dominic20 (Souix falls)        
Agreed

dominic20's profile picture
I love duel action Agitator's especially kitchenaid
I finally have a blue wide base



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