Oliver E Saari from 925 Pond View Ct, Saint Paul, MN 55127, Phone: 6514073486

Wikipedia

Roller screw

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In 1986 Oliver Saari was awarded a patent for a bearing ring roller screw, commonly referred to by its trademark, Spiracon. This type matches the orbit of ...

Us Patents

Anti-Friction Nut/Screw Drive
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US Patent:

45760578, Mar 18, 1986
Filed:

Jun 13, 1984
Appl. No.:

6/620355
Inventors:

Oliver Saari - Minneapolis MN
Assignee:

Illinois Tool Works Inc. - Chicago IL
International Classification:

F16H 118
F16H 120
F16H 2702
F16H 2902
US Classification:

744248C
Abstract:

An improved nut-and-screw type device for converting rotary input to linear output. The device includes an involute-helicoidal screw, a nut assembly including a plurality of annular ring and groove rollers conjugate to said screw; a freely rotating ring having internal grooves conjugate to said roller; and bearing means engaging said rotating ring and the outer housing of said nut assembly thereby providing rolling line contact for transmission of the major forces.