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US5058456A Expired / Lapsed US ⏱️ 0.0 years remaining

Speed reducer

Assignee: FELLAR SA
•
Filing: 1990-11-16
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Granted: 1991-10-22
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Expires: 2010-11-16
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Abstract

Abstract A speed reducer comprised of a casing (1) obtained in a single block, which comprises a broad opening (2) through which it is possible to mount the different internal elements, among which there is a flange (4) which permits the assembly of a bottom shaft (7) with its pinion (8) and meshing (9), resting at one end of the bearings (10) and at the other on a bridge (11). It also includes some coaxial shafts (12, 13) resting on the flange (4) and on bearings (14, 15). The shaft (12) is the one that is coupled to the motor outlet (16), while the shaft (13) protrudes through the opposite part and constitutes the structure for effecting the transmission. The special distribution of the described internal elements permits that none of the gearing is overhanging; in other words, all the shafts have two supports with bearing, determining a greater balance and greater resistance of the unit.

Inventors

  • 👤 Francisco F. Manrique
  • 👤 Helenio F. Manrique

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 22:51
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/033; F16H1/00; F16H1/02; F16H1/20; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 154 words
A speed reducer comprising, a casing cast in a single piece and having a front surface and an inside, a plurality of protrusion elements on said casing and extending inwardly into said inside of said casing, a plurality of shaft support flanges secured to said protrusion elements, a plurality of shafts inside said casing with each shaft having opposite ends rotatably mounted on said shaft support flanges, at least two of said shafts being coaxially aligned within said inside of said casing, and having adjacent ends rotatably supported on the same one of said shaft support flanges, a plurality of reduction gears mounted on said shafts, said front surface of said casing having an opening of sufficient size to permit installation and assembly of said gears through said opening and inside said casing, a cover on said opening, and a bearing means on said cover for supporting one end of one of said shaft.
Claim 2
Dependent Claim 154 words
A speed reducer comprising, a casing cast in a single piece and having a front surface and an inside, a plurality of protrusion elements on said casing and extending inwardly into said inside of said casing, a plurality of shaft support flanges secured to said protrusion elements, a plurality of shafts inside said casing with each shaft having opposite ends rotatably mounted on said shaft support flanges, at least two of said shafts being coaxially aligned within said inside of said casing, and having adjacent ends rotatably supported on the same one of said shaft support flanges, a plurality of reduction gears mounted on said shafts, said front surface of said casing having an opening of sufficient size to permit installation and assembly of said gears through said opening and inside said casing, a cover on said opening, and a bearing means on said cover for supporting one end of one of said shaft.
Claim 3
Dependent Claim 57 words
The speed reducer according to claim 1 wherein said shafts are parallel and include a drive shaft, and first and second driven shafts for the transmission of power, one of said reduction gears connecting said drive shaft to said first driven shaft, another of said reduction gears connecting said first driven shaft to said second driven shaft.

References Cited (Backward Citations)

US2734393A Cited
DE818716C Cited
DE1032635B Cited
US2956451A Cited
US3154963A Cited
US3222954A Cited
US4020715A Cited
US4333358A Cited
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US4786180A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-10-21 1995-04-22 1995-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-10-21 1999-04-22 1999-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-10-21 2003-04-22 2003-10-22 $7700.00 Window Closed / Lapsed

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