IP Library › Granted Patent US 9,397,531
Granted Patent B2
US 9,397,531 · App. 14/829,394 · Granted Jul 19, 2016

Vibrator mechanism usable with a concrete finishing tool

Inventor: Frank Mikowychok (Lincoln, CA)
H02K7/061B28B1/29E01C19/32E01C19/35E01C19/38E01C19/40E01C19/402E04F21/242E04G21/066H02K5/24
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Quick Facts
Patent No.
US 9,397,531
App. No.
14/829,394
Granted
Jul 19, 2016
Kind
B2
Abstract

A vibration imparting device for a concrete finishing tool uses a housing having a chamber surrounded by an inner surface of the housing. A vibrator with a support, a rotor with a shaft and weighted body, a motor, and a resilient link between the shaft and the motor is positioned within the housing chamber. The vibrator also includes a resilient band to separate the vibrator from the housing inner surface. First and second adaptors are employed for the housing to be placed between the handle and the terminus of a concrete finishing tool.

Claims (38)

1. A vibrator mechanism usable with a concrete finishing tool having a handle and a terminus, comprising:

a. a housing, wherein the housing defines a chamber formed by an inner surface of the housing;

b. a vibrator positioned within the chamber of the housing wherein the vibrator comprises:

i. a support, wherein the support defines a bore there through and comprises an outer surface;

ii. a rotor located within the bore of the support and being adapted to turn relative to said support, wherein the rotor comprises a shaft extending outwardly from the rotor and a weighted body connected to the rotor apart from the shaft;

iii. a motor comprising an outer shaft; and

iv. a resilient link connecting the output shaft of the motor to the rotor shaft;

c. a resilient band at least partially surrounding the outer surface of the support of the vibrator and contacting the inner surface of the housing;

d. a first adaptor configured to removably secure the housing to the handle of the concrete finishing tool; and

e. a second adaptor configured to removable secure the housing to the terminus of the concrete finishing tool.

2. The mechanism of claim 1 further comprising an anchor positioned in the housing and configured to hold the vibrator within the chamber at a spaced relationship from the inner surface of the housing.

3. The mechanism of claim 2 wherein the anchor comprises at least one set screw.

4. The mechanism of claim 1 further comprising a battery positioned in the housing chamber adjacent to the vibrator and in electrical communication with the motor of the vibrator.

5. The mechanism of claim 4 further comprising at least one spacer positioned between the battery and the housing wall.

6. The mechanism of claim 4 further comprising a holder configured to secure the battery in the housing chamber.

7. The mechanism of claim 6 wherein the holder comprises at least one set screw.

8. The mechanism of claim 1 wherein the vibrator further comprises a bearing positioned between the support and the rotor.

9. The mechanism of claim 1 wherein the resilient link of the vibrator comprises a spring.

10. The mechanism of claim 1 wherein the resilient band comprises an “O” ring.

11. A vibrator mechanism usable with a concrete finishing tool having a handle and a terminus, comprising:

a. a housing, wherein the housing defines a chamber formed by an inner surface of the housing;

b. a vibrator positioned within the chamber of the housing wherein the vibrator comprises:

i. a support, wherein the support defines a bore there through and comprises an outer surface;

ii. a rotor located within the bore of the support and being adapted to turn relative to said support, wherein the rotor comprises a shaft extending outwardly from the rotor and a weighted body connected to the rotor apart from the shaft;

iii. a motor comprising an outer shaft; and

iv. a resilient link connecting the output shaft of the motor to the rotor shaft;

c. a resilient band at least partially surrounding the outer surface of the support of the vibrator and contacting the inner surface of the housing;

d. a first adaptor configured to removably secure the housing to the handle of the concrete finishing tool;

e. a second adaptor configured to removable secure the housing to the terminus of the concrete finishing tool;

f. an anchor positioned in the housing and configured to hold the vibrator within the chamber at a spaced relationship from the inner surface of the housing; and

g. a battery positioned in the housing chamber adjacent to the vibrator and in electrical communication with the motor of the vibrator.

12. The mechanism of claim 11 wherein the anchor comprises at least one set screw.

13. The mechanism of claim 11 further comprising at least one spacer positioned between the battery and the housing wall.

14. The mechanism of claim 11 further comprising a holder configured to secure the battery in the housing chamber.

15. The mechanism of claim 14 wherein the holder comprises at least one set screw.

16. The mechanism of claim 11 wherein the vibrator further comprises a bearing positioned between the support and the rotor.

17. The mechanism of claim 11 wherein the resilient link of the vibrator comprises a spring.

18. The mechanism of claim 11 wherein the resilient band comprises an “O” ring.

Continuity (3)
Continuation 14304019 · Jun 13, 2014
Continuation In Part 13947720 · Jul 22, 2013
Related Publication 20150357880A1 · Dec 10, 2015