Patent US4590398A successfully refreshed from Google Patents.
US4590398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder
Assignee: Yaskawa Electric Corp
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Filing: 1984-10-03
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Granted: 1986-05-20
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Expires: 2004-10-03
Abstract
Abstract A brush holder comprising a brush box and a brush terminal. The brush box includes a brush sliding tube which is mounted at opposite upper sides thereof with a pair of side plates. Each of the side plates forms a clearance and has an upper opening and a lower opening. The brush terminal has a pair of bent pieces and a central portion therebetween for connecting a pigtail. An engaging projection is formed on the bent pieces. The engagement and fixation between the brush box and the brush terminal are performed outside of the brush box, with the engaging projection coupling to the lower opening, and the bent pieces inserted into the clearance.
Inventors
- 👤 Toshio Nagamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:54
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
A brush holder comprising: a brush box including a brush sliding tube, said brush sliding tube being mounted at opposite upper sides thereof with a pair of side plates, each of said side plates forming a clearance and having an upper opening and a lower opening; and a brush terminal bent to form a generally U-shaped section having an upper opening and having a pair of bent pieces at opposite ends and a central portion therebetween for connecting a pigtail, at least one of said pair of bent pieces being provided with an engaging projection, said projection opening to the outside of said brush sliding tube, and one of said pair of bent pieces being partially cut and extended to form an electrical contact, said brush teminal is fixed to said brush box such that said pair of bent pieces are inserted into said clearances at the opposite sides of said brush sliding tube, and that said engaging projection of said bent pieces is engaged with said lower opening of each of said side plates.
Claim 2
Dependent Claim
175 words
A brush holder comprising: a brush box including a brush sliding tube, said brush sliding tube being mounted at opposite upper sides thereof with a pair of side plates, each of said side plates forming a clearance and having an upper opening and a lower opening; and a brush terminal bent to form a generally U-shaped section having an upper opening and having a pair of bent pieces at opposite ends and a central portion therebetween for connecting a pigtail, at least one of said pair of bent pieces being provided with an engaging projection, said projection opening to the outside of said brush sliding tube, and one of said pair of bent pieces being partially cut and extended to form an electrical contact, said brush teminal is fixed to said brush box such that said pair of bent pieces are inserted into said clearances at the opposite sides of said brush sliding tube, and that said engaging projection of said bent pieces is engaged with said lower opening of each of said side plates.
Claim 3
Dependent Claim
27 words
A brush holder as set forth in claim 1, in which said lower opening of said side plate is formed in lower portion of said side plate.
Claim 4
Dependent Claim
33 words
A brush holder as set forth in claim 1 or 2, in which outer surfaces of said pair of bent pieces contact under pressure with inner surfaces of said pair of side plates.
Claim 5
Dependent Claim
36 words
A brush holder as set forth in claim 1, in which dimension of said clearance is larger than that, in a direction of thickness, of said engaging projection of at least one of said bent pieces.
Claim 6
Dependent Claim
36 words
A brush holder as set forth in claim 3, in which dimension of said clearance is larger than that, in a direction of thickness, of said engaging projection of at least one of said bent pieces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |