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US4122576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed floor treating machine
Assignee: National Super Service Co
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Filing: 1977-07-11
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Granted: 1978-10-31
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Expires: 1997-07-11
Abstract
Abstract A manually-operated floor polishing machine comprising a polishing pad or brush rotatable at a speed above 660 rpm, pressing against the floor with a force of less than about 25 lbs., and positioned so that one segment of the pad presses harder against the floor than the other, such as by mounting the pad's driving plate or disc so that its plane of rotation is at an angle less than about 10° to the plane of the floor. The rotating polishing pad is mounted under the driving plate which plate is driven by an electric motor. The driving plate and motor are mounted on a frame, which frame is supported by a pair of parallel wheels located so that most of the weight of the machine is supported by these wheels. This whole assembly is guided by a rearwardly extending handle attached to this frame.
Inventors
- 👤 John F. Bevington
- 👤 Michael Savidge
- 👤 Paul Meeker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:31
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4036; A47L11/4038; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4072; A47L11/4075
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
119 words
In a floor treating machine comprising: A. a frame, B. a guiding and control handle attached to said frame, C. a supporting means of said frame, D. an electric motor mounted on said frame, E. a driving means rotated by said motor and mounted on said frame forwardly of said supporting means, and F. a floor contacting means releasably attached to the floor side of said driving means, the improvement comprising: G. means for rotating said floor contacting means at a speed greater than about 600 rpm, H. means whereby the angle of the plane of rotation of said floor contacting means is preset to be less than about 10° to the plane of the floor being treated, and
Claim 2
Dependent Claim
119 words
In a floor treating machine comprising: A. a frame, B. a guiding and control handle attached to said frame, C. a supporting means of said frame, D. an electric motor mounted on said frame, E. a driving means rotated by said motor and mounted on said frame forwardly of said supporting means, and F. a floor contacting means releasably attached to the floor side of said driving means, the improvement comprising: G. means for rotating said floor contacting means at a speed greater than about 600 rpm, H. means whereby the angle of the plane of rotation of said floor contacting means is preset to be less than about 10° to the plane of the floor being treated, and
Claim 3
Dependent Claim
28 words
I. means for balancing the weight of said machine on said supporting means whereby the majority of the weight of said machine is supported by said supporting means.
Claim 4
Dependent Claim
28 words
I. means for balancing the weight of said machine on said supporting means whereby the majority of the weight of said machine is supported by said supporting means.
Claim 5
Dependent Claim
22 words
A machine according to claim 1 wherein said frame has a longitudinally centrally offset circular shaped portion for covering said polishing means.
Claim 6
Dependent Claim
16 words
A machine according to claim 1 wherein said guiding handle includes means for controlling said motor.
Claim 7
Dependent Claim
20 words
A machine according to claim 1 wherein said guiding handle includes means for releasably attaching said handle to said housing.
Claim 8
Dependent Claim
13 words
A machine according to claim 1 wherein said supporting means are vertically adjustable.
Claim 9
Dependent Claim
17 words
A machine according to claim 1 wherein said supporting means comprises two parallel and axially aligned wheels.
Claim 10
Dependent Claim
32 words
A machine according to claim 1 including a shaft for mounting said rotating floor contacting means, said shaft being journalled in a pair of axially spaced self-aligning bearings attached to said frame.
Claim 11
Dependent Claim
15 words
A machine according to claim 1 wherein said electric motor is a permanent magnet motor.
Claim 12
Dependent Claim
18 words
A machine according to claim 1 wherein said electric motor has a horsepower between about 1/2 and 2.
Claim 13
Dependent Claim
28 words
A machine according to claim 1 wherein said motor comprises a direct current motor and includes a battery mounted on said frame for supplying current for said motor.
Claim 14
Dependent Claim
19 words
A machine according to claim 1 wherein said floor contacting means is rotated between about 700 and 2000 rpm.
Claim 15
Dependent Claim
30 words
A machine according to claim 1 wherein the angle of the plane of rotation of said rotating floor contacting means to said floor is between about 1/2 and 8° .
Claim 16
Dependent Claim
24 words
A machine according to claim 12 wherein the angle between said plane of rotation and said floor is between about 1° and 5° .
Claim 17
Dependent Claim
17 words
A machine according to claim 1 wherein said rotating floor contacting means comprises an annular shaped brush.
Claim 18
Dependent Claim
16 words
A machine according to claim 1 wherein said rotating floor contacting means comprises a compressible pad.
Claim 19
Dependent Claim
19 words
A machine according to claim 1 including a centrifugal clutch between said motor and said rotating floor contacting means.
Claim 20
Dependent Claim
17 words
A machine according to claim 1 wherein said frame includes a housing having a substantially horizontal platform.
Claim 21
Dependent Claim
15 words
A machine according to claim 17 wherein said driving means is mounted under said platform.
Claim 22
Dependent Claim
17 words
A machine according to claim 17 wherein said handle is attached near the rear of said platform.
Claim 23
Dependent Claim
22 words
A machine according to claim 17 wherein said housing is provided with a covered aperture for readily demounting said floor contacting means.
Claim 24
Dependent Claim
32 words
A machine according to claim 1 wherein said motor when connectible to a 110-120 volt AC source starts and operates from said source limited by about a 20 ampere circuit breaking device.
Claim 25
Dependent Claim
15 words
A machine according to claim 21 wherein said source is limited by about 15 amperes.
Claim 26
Dependent Claim
23 words
A machine according to claim 1 including a belt and pulleys between said plate by said motor for rotating said floor contacting means.
Claim 27
Dependent Claim
23 words
A machine according to claim 1 wherein said floor contacting means is rotated at a speed of between about 800 and 1500 rpm.
Claim 28
Dependent Claim
20 words
A machine according to claim 1 wherein the pressure on said rotating floor-contacting means is less than about 25 pounds.
Claim 29
Dependent Claim
25 words
A machine according to claim 25 wherein the pressure of said floor contacting means on the floor is between about 5 lbs. and 20 lbs.
Claim 30
Dependent Claim
22 words
A machine according to claim 26 wherein said pressure of said floor contacting means is between about 7 lbs. and 15 lbs.
Claim 31
Dependent Claim
21 words
A machine according to claim 1 wherein the axis of said motor is substantially over the axis of said supporting means.
Claim 32
Dependent Claim
13 words
A machine according to claim 1 wherein said driving means comprises a plate.
References Cited (Backward Citations)
US1694738A
Cited
US2079946A
Cited
US2626412A
Cited
US2600233A
Cited
FR2036935A1
Cited
US3837028A
Cited
US3912244A
Cited
US4059863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |