1966 wiper arms patent number

[Harry L.]

I am trying to find out if my wiper arms are correct to support 15 inch Trico blades. The blades that are on now are 16 inch Trico blades. .The arms and blades are brushed stainless. The patend number on the arm reads ,2752626, under that the number reads 2807822. On the other side of the arm there is a number that reads 805616. CAN R3 OR the first # might be a 305616.and beside the CAN, that # it is hard to see. Does any one have any ideals? thanks DUTCH

[Peter L.]

Re: 1966 wiper arms patent number

Dutch - The Patent #s of the 63-67 Corvette TRICO wiper arms will be stamped along with the TRICO logo (in outlined letters) on the spring cover on the underside of the wiper arm body. I'm on travel now so I cannot confirm that the #s you listed are correct but they should be listed somewhere in the Archives; but you should note that spring covers used on some 1960 -1962 Chevrolet Passenger car wipers have the same Patent #s. These Passenger car wiper arms also had the adjustment screw on the side of the wiper arm body (the adjusting screw in not unique to 63-67 Corvette wiper arms) but the rods from the wiper arm body that attach to the wiper blade clips are different in length than those for the 63-67 Corvettes and the base pieces that attach to the wiper relay splined drums are flared at the bottom where as the bases on the 63-67 Corvette arms are straight.

If you can, Post some pictures and someone should be able to comfirm if the wiper arms you have are the "real deal."

Pete

[Tom H.]

Re: 1966 wiper arms patent number

I have a 66 here today. Not sure if the arms are correct, but they appear to be. Patent number on left and right is the same. Two numbers. 2511169 2564819

[David L.]

Re: 1966 wiper arms patent number

Dutch,

I will look at the wiper arms on my 1966 Corvette tomorrow and see if I can read the patent numbers.

I have a very nice pair of original Trico wiper arms from a 65 Chevelle and they are stamped as follows:
"PATENT 2511129, 2564810"
"2804639, CAN. 1948"
"MADE IN U.S.A."

I used a magnifying glass and a lot of light to read the numbers.

Dave

[David L.]

Re: 1966 wiper arms patent number

Harry,

I could not read the patent numbers on my wiper arms without actually taking them off and I can not find my wiper arm tool.

Pictured on the left is a RH NOS 1967 Corvette wiper arm (GM 3915862) purchased in the early 1980's installed on my 1966 Corvette. I believe that the only difference between the 1966 wiper arms (3888297 & 3888298) and the 1967 wiper arms (3915861 & 3915862) is the coating of the small bases. Pete will know more, I'm sure.

Pictured on the right is an original 1965 Chevelle wiper arm with the flare at the bottom as stated by Pete.

Dave

[Harry L.]

Re: 1966 wiper arms patent number

My wiper arm from what I can see looks similar to Davids first picture. THE lenth of the whole arm including where it fits on the post is 15 inches. On the Underneath side of the arm it has the word TRICO, and beside that are very small numbers, and with those numbers, I could make out ; Made in the USA. At the wiper blade end of the arm, the arm goes into the two small clamps of the wiper blade clasp, and there is a hole in the arm that helps secure the arm to the wiper blade clasp. there is also a pin that goes through the clasp. I know my 16 inch TRICO blades are wrong, just hoping my wiper arms are right. Halfway down the large part of the wiper arms there is a screw on the side. thanks for all the help. DUTCH Does any one have a picture of a 1966 wiperblade attached to the arm?

[David L.]

Re: 1966 wiper arms patent number

Harry,

Enclosed is a photo on the RH wiper blade (original ANCO blade, GM # 3888296, as shown in Noland Adam's 63-67 book, page 322) attached to the RH NOS Trico wiper arm on my 1966 Corvette.

I prefer to use original 3888296 ANCO wiper blades with NOS "ANCO PATENT 2782444" rubber refills rather them the more common "flat roof" dull finish Trico wiper arms.

Also enclosed is a photo of a 1966 Trico wiper blade.

Dave

[David L.]

Re: 1966 wiper arms patent number

Harry,

Do the ends of your wiper arms look like the photo below?
If so, they are not correct.
I still have other styles of wiper arms. Let me know.

Dave

[Harry L.]

Re: 1966 wiper arms patent number

David. my trico arm looks like your Trico picture, but mine does not have that little flap right before the hole. Do you have a picture of just the 1966 trico arm ? thanks DUTCH

[David L.]

Re: 1966 wiper arms patent number

David. my trico arm looks like your Trico picture, but mine does not have that little flap right before the hole. Do you have a picture of just the 1966 trico arm ? thanks DUTCH

DUTCH,

I assume you mean the photo of my 1966 Trico wiper blade holder. The "flap" is what holds the Trico wiper blade holder on to the arm. You also need the "flap" to remove the wiper blade from the arm. I really need a photo of your wiper blade/wiper arm situation to understand your problem.

When I bought my 1966 Corvette in 1979 it had non-original wiper arms that were adjustable. That is why I bought NOS wiper arms at the Chevrolet dealer. The wiper arms must have got lost when the windshield was changed before I bought the car.

Do you have the Trico blade type as shown in the photo below? I have no idea what year & model car it was used on.

Dave

[Peter L.]

Re: 1966 wiper arms patent number

Dutch - I agree with Dave. A picture or 2 of what you have would really help define the problm, if there is one. Please post some photos. Pete

[Harry L.]

Re: 1966 wiper arms patent number

You Men are right, I will attempt to post a couple of pictures. thanks DUTCH

[David L.]

Re: 1966 wiper arms patent number

Dutch,

Does the top of your wiper blades look anything like the 3 wiper arms shown in the photo below? If not, we need photos from you. These are aftermarket adjustable wiper arms. The top two are ANCO, the bottom one is a Trico. They have absolutely no value in the vintage car market but they can be very helpful during a rain storm.

Dave

[Harry L.]

Re: 1966 wiper arms patent number

Thanks again for being so helpful. Hopefully, tomorrow I can get some pictures to you. I have a feeling that my wipers and arms are from a 1980s Oldmobile, or something of the like. The wiper blades say Trico, Made in the USA on the outside of both ends, and the arm says Trico, Made in the USA on the underside. Maybe this TRICO arm is made for a 16 inch TRICO blade. talk to you later DUTCH

[Harry L.]

Re: 1966 wiper arms patent number

These are pictures of my unknown wiper arms and blades. I hope someone can identify them. Thanks. DUTCH