Fil:Hydrostatic transmission US2360025 page 1.png

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Sammanfattning

Beskrivning
English: Patent drawing for an automatic hydrostatic transmission for on- and off road vehicles with variable axial piston pump and variable axial piston motor in the same housing, with main pressure/return-oil ports assembled "back-to-back" to form a compact unit without the need for hydraulic tubes or hydraulic hoses. Stepless hydrostatic gear ratio with theoretical max. torque ratio 1:1000.
Datum June 6, 1941 (filing date at USPTO)
Källa Patent USPTO No. 2360025, page 1 (24)
Skapare Gunnar A. Wahlmark, Rockport Illinois, USA
Tillstånd
(Återanvändning av denna fil)
Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

Licensiering

This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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nuvarande15 september 2009 kl. 18.13Miniatyrbild för versionen från den 15 september 2009 kl. 18.131 768 × 2 788 (126 kbyte)Lidingo{{Information |Description={{en|1=Patent drawing for an automatic hydrostatic transmission for on- and off road vehicles with variable axial piston pump and variable axial piston motor in the same housing, with main pressure/return-oil ports assembled "ba

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