Patent US4847513A successfully refreshed from Google Patents.
US4847513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated device with a cooling facility
Assignee: Black and Decker Inc
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Filing: 1988-02-26
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Granted: 1989-07-11
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Expires: 2008-02-26
Abstract
Abstract A cordless power-operated device, such as a saw 20, is powered by a low level D.C. voltage provided by battery pack cells to operate the saw in a cordless mode. The cells are housed in a container 32 which fits into a cavity 23 formed in a housing 22 of saw 20. Another container 66 includes a first section 64 which is shaped externally in the same configuration as container 32. First section 64 houses a voltage converter 62 which converts conventional A.C. voltage, such as 120 volts at 60 Hz, to the low level D.C. voltage required to operate saw 20. Container 66 can be inserted into cavity 23 of saw 20 and voltage converter 62 can be connected to a conventional A.C. source to operate the saw in a corded mode. Container 66 also includes a second section 68 which houses a cooling motor 70. Cooling motor 70 provides powered cooling of saw motor 28, the cooling motor and voltage converter 62.
Inventors
- 👤 Friedrich J. Katz
- 👤 Salvatore R. Abbratozzato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:24
CPC Classifications
B; B23; B23D; B23D47/00; B23D47/12; B23Q; B23Q1/00; B23Q1/0009; H; H02; H02J; H02J7/00; H02J7/70; H02K; H02K23/00; H02K23/66; H02K7/00; H02K7/14; H02K7/145; H02K9/00; H02K9/02; H02K9/04; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33569; H02M3/33571; H01; H01H; H01H9/00; H01H9/02; H01H9/06; H01H2009/065; H01H9/52; H01M; H01M50/00; H01M50/20; H01M50/247; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S30/00; Y10S30/01
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
71 words
A power-operated device having a powered driver operable at a prescribed voltage level, which comprises: means for developing operating power at the prescribed voltage level; means for cooling the powered driver; means for containing the developing means and the cooling means together; and means for supporting the containing means in position with the powered driver to facilitate the application of the operating power to and the cooling of the powered driver.
Claim 2
Dependent Claim
71 words
A power-operated device having a powered driver operable at a prescribed voltage level, which comprises: means for developing operating power at the prescribed voltage level; means for cooling the powered driver; means for containing the developing means and the cooling means together; and means for supporting the containing means in position with the powered driver to facilitate the application of the operating power to and the cooling of the powered driver.
Claim 3
Dependent Claim
35 words
The power-operated device as set forth in claim 1, which further comprises: means for applying the operating power of the developing means at the prescribed voltage level to the power driver and the cooling means.
Claim 4
Dependent Claim
34 words
The power-operated device as set forth in claim 1, which further comprises: means for connecting the operating power developing means to an external power source to facilitate operation of the operating power developing means.
Claim 5
Dependent Claim
99 words
A power-operated device having a motor operable at a prescribed voltage level, which comprises: a housing for containing the motor and formed with a cavity therein; means for developing operating power at the prescribed voltage level; means for cooling the motor; means for containing together the developing means and the cooling means; the containing means configured externally to fit into the cavity; means for connecting the developing means to the motor and the cooling means to provide operating power thereto, and means for connecting the developing means to an external power source to facilitate operation of the developing means.
Claim 6
Dependent Claim
99 words
A power-operated device having a motor operable at a prescribed voltage level, which comprises: a housing for containing the motor and formed with a cavity therein; means for developing operating power at the prescribed voltage level; means for cooling the motor; means for containing together the developing means and the cooling means; the containing means configured externally to fit into the cavity; means for connecting the developing means to the motor and the cooling means to provide operating power thereto, and means for connecting the developing means to an external power source to facilitate operation of the developing means.
Claim 7
Dependent Claim
131 words
A power-operated device having a drive motor operable at a prescribed voltage level normally associated with a cordless mode of operation which comprises: a housing formed with a motor chamber for containing the drive motor and formed with a cavity therein configured for receipt of a container which houses a cordless-mode power source; means for developing operating power at the prescribed voltage level; means for cooling the motor; means for containing together the developing means and the cooling means; the containing means configured to fit into the cavity interchangeably with the cordless-mode container; means for connecting the developing means to the motor and to the cooling means to provide operating power thereto, and means for connecting the developing means to an external power source to facilitate operation of the developing means.
Claim 8
Dependent Claim
131 words
A power-operated device having a drive motor operable at a prescribed voltage level normally associated with a cordless mode of operation which comprises: a housing formed with a motor chamber for containing the drive motor and formed with a cavity therein configured for receipt of a container which houses a cordless-mode power source; means for developing operating power at the prescribed voltage level; means for cooling the motor; means for containing together the developing means and the cooling means; the containing means configured to fit into the cavity interchangeably with the cordless-mode container; means for connecting the developing means to the motor and to the cooling means to provide operating power thereto, and means for connecting the developing means to an external power source to facilitate operation of the developing means.
Claim 9
Dependent Claim
19 words
The power-operated device as set forth in claim 5 wherein the cooling means cools the operating power developing means.
Claim 10
Dependent Claim
79 words
The power-operated device as set forth in claim 5, wherein the cooling means includes: means formed in the housing for facilitating the movement of a cooling medium through the motor chamber; means formed in the containing means for facilitating the movement of the cooling medium through the containing means, and means formed in the housing for facilitating the movement of the cooling medium between the motor chamber and the containing means to thereby permit cooling of the drive motor.
Claim 11
Dependent Claim
91 words
The power-operated device as set forth in claim 5, wherein the cooling means includes: cooling medium portals formed in spaced portions of the containing means to permit the passage of the cooling medium therethrough; cooling medium portals formed in spaced portions of the motor chamber to permit the passage of the cooling medium therethrough, and means for locating at least one cooling medium portal of the containing means in alignment with at least one cooling medium portal of the motor 12 chamber to permit the passage of the cooling medium therethrough.
Claim 12
Dependent Claim
26 words
The power-operated device as set forth in claim 5 wherein the cooling means includes: a cooling motor, and a fan cage operated by the cooling motor.
Claim 13
Dependent Claim
22 words
The power-operated device as set forth in claim 9 wherein the fan cage is positioned about the exterior of the cooling motor.
Claim 14
Dependent Claim
24 words
The power-operated device as set forth in claim 4 wherein the developing means operates in a power output range of 50 watts and higher.
Claim 15
Dependent Claim
25 words
The power-operated device as set forth in claim 5 wherein the voltage supply level is in a range of 3.6 volts to 48 volts D.C.
Claim 16
Dependent Claim
31 words
The power-operated device as set forth in claim 5, which further comprises means located on the exterior of the housing for securing the containing means within the cavity of the housing.
Claim 17
Dependent Claim
68 words
The power-operated device as set forth in claim 5 wherein the developing means includes: means for converting voltage of the external power source to a high frequency A.C. voltage; means for transforming the high frequency A.C. voltage to a low level A.C. voltage, and means for rectifying the low level A C. voltage to a D.C. voltage level equal to the prescribed voltage level of the drive motor.
Claim 18
Dependent Claim
124 words
A power-operated device having a drive motor, which comprises: a housing formed with a motor chamber, a cavity and a portal between the motor chamber and the cavity; means for developing operating power at a predetermined voltage level; a cooling motor operable at the predetermined voltage level; a fan cage attached to and operable by the cooling motor; a container for supporting the operating power developing means, the cooling motor and the fan cage; the container formed with a portal and configured to be insertable within the cavity with the container portal aligned with the housing portal, and means for applying the operating power of the developing means to the cooling motor to facilitate the movement of a cooling medium about the drive motor.
Claim 19
Dependent Claim
124 words
A power-operated device having a drive motor, which comprises: a housing formed with a motor chamber, a cavity and a portal between the motor chamber and the cavity; means for developing operating power at a predetermined voltage level; a cooling motor operable at the predetermined voltage level; a fan cage attached to and operable by the cooling motor; a container for supporting the operating power developing means, the cooling motor and the fan cage; the container formed with a portal and configured to be insertable within the cavity with the container portal aligned with the housing portal, and means for applying the operating power of the developing means to the cooling motor to facilitate the movement of a cooling medium about the drive motor.
Claim 20
Dependent Claim
37 words
The power-operated device as set forth in claim 15, which further comprises: the drive motor being operable at the predetermined voltage level, and means for applying the operating power of the developing means to the drive motor.
Claim 21
Dependent Claim
35 words
The power-operated device as set forth in claim 15 which further comprises: a shaft extending from the cooling motor, and the fan cage mounted on the shaft and extending toward and about the drive motor.
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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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |