US4767233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeller mounting apparatus
Assignee: Dresser Industries Inc
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Filing: 1987-03-20
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Granted: 1988-08-30
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Expires: 2007-03-20
Abstract
Abstract The impeller mounting apparatus includes one or more pins extending through the hub into the shaft with the pins being retained in the holes by means of a resilient metallic band of continuous construction which is forced onto the hub into grooves or recesses which prevent the dislodgement of the band and the inadvertent loosening of the impeller on the shaft.
Inventors
- 👤 John W. Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:58
CPC Classifications
F; F16; F16B; F16B41/00; F16B41/002; F04; F04D; F04D29/00; F04D29/18; F04D29/20; F16D; F16D1/00; F16D1/06; F16D1/064; F16D1/072; F16D1/08; F16D1/0894; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7075; Y10T403/7077; Y10T403/7079
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
Impeller mounting means for positioning an impeller having a hub portion on a rotating shaft for rotation therewith, said mounting means: at least one radially oriented pin extending through said hub portion into said shaft; a generally circular, continuous, resilent band of metallic material encircling said hub portion radially outwardly of said pin in engagement with said pin for retaining said pin in said hub portion and shaft and engaging said hub portion for retaining said band on said hub portion, said band having an inside dimension smaller than an outside dimension of said hub portion; a second radially oriented pin extending through said hub portion into said shaft, said second pin being diametrically opposite to said first mentioned pin; a recess in said hub portion having an outer dimension less than the inside dimension of said band; and, surface means including a radially inwardly projecting embossment on said band having sloping sides engageable with said hub portion for increasing the inside dimension of said band when being installed on said hub portion whereby said inside dimension is positioned in said recess.
Claim 2
Dependent Claim
182 words
Impeller mounting means for positioning an impeller having a hub portion on a rotating shaft for rotation therewith, said mounting means: at least one radially oriented pin extending through said hub portion into said shaft; a generally circular, continuous, resilent band of metallic material encircling said hub portion radially outwardly of said pin in engagement with said pin for retaining said pin in said hub portion and shaft and engaging said hub portion for retaining said band on said hub portion, said band having an inside dimension smaller than an outside dimension of said hub portion; a second radially oriented pin extending through said hub portion into said shaft, said second pin being diametrically opposite to said first mentioned pin; a recess in said hub portion having an outer dimension less than the inside dimension of said band; and, surface means including a radially inwardly projecting embossment on said band having sloping sides engageable with said hub portion for increasing the inside dimension of said band when being installed on said hub portion whereby said inside dimension is positioned in said recess.
Claim 3
Dependent Claim
39 words
The impeller mounting means of claim 1 and also including: a second embossment diametrically opposite said first embossment and at about 90° relative to said pins; and, a second recess in said hub portion for receiving said second embossment.
Claim 4
Dependent Claim
227 words
Impeller mounting means for positioning an impeller having a hub portion on a rotating shaft for rotation therewith, said mounting means: at least one radially oriented pin extending through said hub portion into said shaft; a generally circular, continuous, resilent band of metallic material encircling said hub portion radially outwardly of said pin in engagement with said pin for retaining said pin in said hub portion and shaft and engaging said hub portion for retaining said band on said hub portion, said band having an inside dimension smaller than an outside dimension of said hub portion; a second radially oriented pin extending through said hub portion into said shaft, said second pin being diametrically opposite to said first mentioned pin; an annular recess in said hub portion having an outer dimension less than the inside dimension of said band; and, surface means for increasing the inside dimension of said band when being installed on said hub portion whereby said inside dimension is positioned in said recess, said surface means includes first and second annular sloping surfaces on said hub portion engageable with said band, said second annular sloping surface being at a large angle relative to the axial center line of the impeller for enlarging said band when the band is to be removed permitting removal of the pins and removal of the impeller from the shaft.
Claim 5
Dependent Claim
227 words
Impeller mounting means for positioning an impeller having a hub portion on a rotating shaft for rotation therewith, said mounting means: at least one radially oriented pin extending through said hub portion into said shaft; a generally circular, continuous, resilent band of metallic material encircling said hub portion radially outwardly of said pin in engagement with said pin for retaining said pin in said hub portion and shaft and engaging said hub portion for retaining said band on said hub portion, said band having an inside dimension smaller than an outside dimension of said hub portion; a second radially oriented pin extending through said hub portion into said shaft, said second pin being diametrically opposite to said first mentioned pin; an annular recess in said hub portion having an outer dimension less than the inside dimension of said band; and, surface means for increasing the inside dimension of said band when being installed on said hub portion whereby said inside dimension is positioned in said recess, said surface means includes first and second annular sloping surfaces on said hub portion engageable with said band, said second annular sloping surface being at a large angle relative to the axial center line of the impeller for enlarging said band when the band is to be removed permitting removal of the pins and removal of the impeller from the shaft.
Claim 6
Dependent Claim
214 words
Impeller mounting means for positioning an impeller having a hub portion on a rotating shaft for rotation therewith, said mounting means: at least one radially oriented pin extending through said hub portion into said shaft; a generally circular, continuous, resilent band of metallic material encircling said hub portion radially outwardly of said pin in engagement with said pin in said hub portion and shaft and engaging said hub portion for retaining said band on said hub portion, said band having an inside dimension smaller than an outside dimension of said hub portion; a second radially oriented pin extending through said hub portion into said shaft, said second pin being diametrically opposite to said first mentioned pin; an annular recess in said hub portion having an outer dimension less than the inside dimension of said band; surface means for increasing the inside dimension of said band when being installed on said hub portion whereby said inside dimension is positioned in said recess, said surface means includes an annular sloping surface on said hup portion engageable with said band; and, said band includes at least one pair of diametrically opposed lobes and a pair of diametrically opposed flats between said lobes, said lobes having a diametric dimension therebetween greater than the diameter of said annular recess.
Claim 7
Dependent Claim
214 words
Impeller mounting means for positioning an impeller having a hub portion on a rotating shaft for rotation therewith, said mounting means: at least one radially oriented pin extending through said hub portion into said shaft; a generally circular, continuous, resilent band of metallic material encircling said hub portion radially outwardly of said pin in engagement with said pin in said hub portion and shaft and engaging said hub portion for retaining said band on said hub portion, said band having an inside dimension smaller than an outside dimension of said hub portion; a second radially oriented pin extending through said hub portion into said shaft, said second pin being diametrically opposite to said first mentioned pin; an annular recess in said hub portion having an outer dimension less than the inside dimension of said band; surface means for increasing the inside dimension of said band when being installed on said hub portion whereby said inside dimension is positioned in said recess, said surface means includes an annular sloping surface on said hup portion engageable with said band; and, said band includes at least one pair of diametrically opposed lobes and a pair of diametrically opposed flats between said lobes, said lobes having a diametric dimension therebetween greater than the diameter of said annular recess.
References Cited (Backward Citations)
US1949678A
Cited
US2326317A
Cited
US2291346A
Cited
US2798438A
Cited
US3830577A
Cited
SU407098A2
Cited
US4224462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |