In 1942 the Military Planning Division evolved a 5-gallon can with a cam closure.(21)
During 1943 a limited quantity of these were procured for testing purposes with the idea substituting the cam for the screw-type gasoline can.
As a result of tests made, the Armored Force, Infantry, and other arms of the service went on record as approving the cam type of can if certain defects were overcome.
Under the direction of the Fuels and Lubricants Division, these were eliminated and the Quartermaster Board made satisfactory tests.
Although the Division suggested that standardization of the cam-type closure be requested as an alternate standard to the screw type, no action was taken.(22)
Since at that time no 5-gallon cans were being procured, standardization had become an academic question.
(21) Memo, Col. G. F. Doriot, Dir of the Div, to Production Br, SOS, 13 Aug 42, sub: 5-gallon Gasoline Containers. See also same to same 17 Nov 42.
(22) Memo, Maj E. L. Bradley, Chief of Container Sec, to Hq ASF, 19 Apr 44.
Mark Tombleson wrote:That is interesting. Is there any patent on the cam lock for the Cavalier or Monarch water cans, or anything on the USMC CONCO cam locks? Were the German cam lock cans patented? How does Patent law work internationally or during times of war? Did we in fact copy the German cam lock and use it to our benefit without issue?
Fred Coldwell wrote:I don't know how international patent law works during wartime or whether we copied the German cam lock and used it without paying royalties. But I imagine honoring patents (if any) held by our enemy during wartime was very low on the list of wartime concerns.
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