Patent US3860989A successfully refreshed from Google Patents.
US3860989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mountings for rotary floor treating elements
Assignee: RG Dixon and Co Ltd
•
Filing: 1973-08-13
•
Granted: 1975-01-21
•
Expires: 1993-08-13
Abstract
Abstract A mounting arrangement for a rotary floor treating element, comprising a head unit carrying a driven shaft, a support plate adjustably mounted on the head unit for movement between an ''''operating'''' position close to the head unit and a ''''free'''' position spaced from the head unit, and releasable latch means for holding the support plate in the ''''operating'''' position, the support plate having means to support rotary floor treating elements in engagement with the drive shaft when in the ''''operating'''' position and to release them from such engagement when in the ''''free'''' position.
Inventors
- 👤 Henry William Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:49
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/164; A47L11/4038; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A mounting arrangement for a rotary floor treating element, comprising a head unit carrying a driven shaft, means adjustably mounting a support plate on the head unit for movement between an operating position close to the head unit and a free position spaced from the head unit, and releasable latch means for holding the support plate in the operating position, the support plate having means to support rotary floor treating elements in engagement with the drive shaft when in the operating position and to release them from such engagement when in tHe free position.
Claim 2
Dependent Claim
94 words
A mounting arrangement for a rotary floor treating element, comprising a head unit carrying a driven shaft, means adjustably mounting a support plate on the head unit for movement between an operating position close to the head unit and a free position spaced from the head unit, and releasable latch means for holding the support plate in the operating position, the support plate having means to support rotary floor treating elements in engagement with the drive shaft when in the operating position and to release them from such engagement when in tHe free position.
Claim 3
Dependent Claim
19 words
A mounting arrangement as claimed in claim 1, in which the head unit carries more than one driven shaft.
Claim 4
Dependent Claim
63 words
A mounting arrangement as claimed in claim 1, in which the driven shaft is provided with a rounded end, and in which the floor treating element is provided with a gimbal surface cooperable with the rounded end of the driven shaft and allows the latter to rock to conform to the variations in the floor while mataining driving engagement with the driven shaft.
Claim 5
Dependent Claim
34 words
A mounting arrangement as claimed in claim 1, in which the support plate has a V-shaped indentation associated with the driven shaft to guide the floor treating element to proper location in relation thereto.
Claim 6
Dependent Claim
21 words
A mounting arrangement as claimed in claim 4, in which the indentation is lined with a channel-shaped liner of plastics material.
Claim 7
Dependent Claim
41 words
A mounting arrangement as claimed in claim 4, in which a zone adjacent the apex of the V-shaped indentation is arranged to engage in a groove on the floor treating element to support the element in engagement with the drive shaft.
Claim 8
Dependent Claim
39 words
A mounting arrangement as claimed in claim 1, said means comprising pivot pins on the support plate and support arms mounted on the pivot pins and the head unit to mount the support plate adjustably on the head unit.
Claim 9
Dependent Claim
20 words
A mounting arrangement as claimed in claim 7, in which the latch means is releasably engageable with the pivot pins.
Claim 10
Dependent Claim
33 words
A mounting arrangement as claimed in claim 1 in which the driven shaft is provided with a plurality of drive spigots for driving engagement with corresponding sockets in the rotary floor treating element.
Claim 11
Dependent Claim
114 words
A rotary floor treating element for use with a machine having a mounting arrangement including a driven shaft with a rounded end and a plurality of drive spigots adjacent the said rounded end, and means independent of the shaft for releasably retaining the rotary floor treating element on the shaft in drivable engagement therewith, the floor treatment element comprising a socket portion including a plurality of recesses to cooperate in driving engagement with the spigots on the driven shaft, and a concave generally spherical gimbal surface for cooperation with the rounded end of the shaft to allow limited universal rocking to enable the treating element to conform to variations in the floor under treatment.
Claim 12
Dependent Claim
114 words
A rotary floor treating element for use with a machine having a mounting arrangement including a driven shaft with a rounded end and a plurality of drive spigots adjacent the said rounded end, and means independent of the shaft for releasably retaining the rotary floor treating element on the shaft in drivable engagement therewith, the floor treatment element comprising a socket portion including a plurality of recesses to cooperate in driving engagement with the spigots on the driven shaft, and a concave generally spherical gimbal surface for cooperation with the rounded end of the shaft to allow limited universal rocking to enable the treating element to conform to variations in the floor under treatment.
References Cited (Backward Citations)
US1938300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |