US3847576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Street sweeper filter shaker system
Assignee: Wayne Manufacturing Co
•
Filing: 1972-03-27
•
Granted: 1974-11-12
•
Expires: 1992-03-27
Abstract
Abstract Street sweeper filter structure is subjected to jarring by force transmission via a manifold supporting the filter, to assure dislodgement of dirt accumulations.
Inventors
- 👤 J Oberdank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:44
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B01D45/16; E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0854
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
In a street sweeper having a dirt receiving chamber having side walls, a manifold in said chamber, an air filter projecting generally horizontally and in cantilever fashion from said manifold, a suction blower connected to the manifold, means for mounting said filter in said chamber for vibratory motion, and a vibrator for vibrating said filter; the improvement wherein said means for mounting said filter for vibratory motion comprises arm means connected to said manifold, pivot means connected to said arm means including a rotatable shaft for mounting to a dirt chamber side wall so as to accommodate oscillation of said manifold about a generally horizontal axis, said vibrator being connected directly to said manifold and being disposed at a position offset from said pivot means operation of said vibrator oscillating said manifold and the projecting filter about the axis of said pivot means.
Claim 2
Dependent Claim
143 words
In a street sweeper having a dirt receiving chamber having side walls, a manifold in said chamber, an air filter projecting generally horizontally and in cantilever fashion from said manifold, a suction blower connected to the manifold, means for mounting said filter in said chamber for vibratory motion, and a vibrator for vibrating said filter; the improvement wherein said means for mounting said filter for vibratory motion comprises arm means connected to said manifold, pivot means connected to said arm means including a rotatable shaft for mounting to a dirt chamber side wall so as to accommodate oscillation of said manifold about a generally horizontal axis, said vibrator being connected directly to said manifold and being disposed at a position offset from said pivot means operation of said vibrator oscillating said manifold and the projecting filter about the axis of said pivot means.
Claim 3
Dependent Claim
25 words
The street sweeper of claim 1, comprising flexible means connected between said manifold and a chamber sidewall for resiliently supporting the manifold on said sidewall.
Claim 4
Dependent Claim
65 words
The street sweeper of claim 1 wherein said dirt chamber has a door and an actuator for opening and closing the door; the improvement comprising a control system for operating said actuator, and means in said control system connected to said vibrator for operating the vibrator when said actuator has closed said chamber door, and for disabling the vibrator when said actuator opens said door.
Claim 5
Dependent Claim
40 words
The street sweeper of claim 1, wherein said manifold mounting means also comprises an arm projecting from said manifold and said pivot means comprises a pivot shaft between the distal end of said arm and the associated dirt chamber sidewall.
Claim 6
Dependent Claim
43 words
The street sweeper of claim 4 comprising closely spaced rigid stop members on one chamber side wall, and means on said arm for alternately engaging each of said stop members for limiting oscillation of said arm about said pivot shaft in both directions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |