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US3805408A Expired / Lapsed US ⏱️ 0.0 years remaining

Shaft support arrangement for appliance having a rotating cylinder

Assignee: Fedders Corp
•
Filing: 1973-02-20
•
Granted: 1974-04-23
•
Expires: 1993-02-20
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Abstract

Abstract A unique shaft support arrangement for an appliance having a rotating cylinder is provided. The back wall of the cylinder includes a central piloting hole adapted to receive a screw for engagement with one end of the torque transmitting shaft and permit alignment of the cylinder relative to the shaft axis. A disk is brazed or welded to the shaft close to the one end. A shaft support in the form of a frusto-conical member surrounds the shaft and has its larger diameter base abutting the disk and its smaller diameter base abutting the inner race of a bearing secured to the frame of the appliance. A plurality of screws secure the cylinder back wall, disk, and large diameter base of the shaft support to each other thereby enabling torque to be transmitted to the cylinder through the shaft while insuring that the cylinder remains in axial alignment with the shaft. The other end of the shaft extends through the bearing to receive a sprocket wheel which delivers torque from the appliance motor.

Inventors

  • 👤 G Shadley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:50
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/02; D06F58/04; D06F58/06

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 146 words
In a domestic appliance of the type having a framework containing therein motor means, a cylinder adapted to be rotated about an axis by said motor means, said axis extending between the front and rear of said cylinder, shaft means adapted to support said cylinder, and drive means adapted to transmit torque from said motor to said cylinder the improvement comprising support means for said shaft adapted to insure the parallel alignment of the cylinder axis with the longitudinal axis of the shaft, said support means including: a plate disposed about said shaft at one end and rigidly secured to said shaft, bearing means secured to said framework and supporting the shaft near the other end, a shaft supporting member encircling said shaft and coextensive with the shaft between the bearing and plate, and means for coupling said cylinder rear, plate and support to each other.
Claim 2
Dependent Claim 146 words
In a domestic appliance of the type having a framework containing therein motor means, a cylinder adapted to be rotated about an axis by said motor means, said axis extending between the front and rear of said cylinder, shaft means adapted to support said cylinder, and drive means adapted to transmit torque from said motor to said cylinder the improvement comprising support means for said shaft adapted to insure the parallel alignment of the cylinder axis with the longitudinal axis of the shaft, said support means including: a plate disposed about said shaft at one end and rigidly secured to said shaft, bearing means secured to said framework and supporting the shaft near the other end, a shaft supporting member encircling said shaft and coextensive with the shaft between the bearing and plate, and means for coupling said cylinder rear, plate and support to each other.
Claim 3
Dependent Claim 45 words
The invention in accordance with claim 1 further comprising a first pilot hole in said cylinder rear, a second, threaded pilot hole in said shaft one end and bolt means adapted to secure said cylinder rear to said shaft one end through said pilot holes.
Claim 4
Dependent Claim 51 words
The invention in accordance with claim 1 wherein said bearing means comprises a ball bearing having an inner race and said shaft support means comprises a frusto-conical member closely fitting about said shaft and having its inner diameter base abutting said inner race and its larger diameter base abutting said plate.
Claim 5
Dependent Claim 40 words
The invention in accordance with claim 3 wherein said coupling means comprises a plurality of screws and nuts passed through aligned openings through said cylinder rear, plate and large diameter base disposed along a common circle at equal angle intervals.
Claim 6
Dependent Claim 37 words
The invention in accordance with claim 4 wherein said large diameter base includes an integral portion extending beyond said common circle wherein siad portion is secured to said cylinder rear wall independently of said screws and nuts.

References Cited (Backward Citations)

US2682711A Cited
US2830384A Cited
US2972817A Cited
US3022580A Cited
US3098726A Cited
US3257736A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-04-22 1977-10-22 1978-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-22 1981-10-22 1982-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-22 1985-10-22 1986-04-23 $7700.00 Window Closed / Lapsed

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