US4596941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor
Assignee: ITT Inc
•
Filing: 1983-08-03
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Granted: 1986-06-24
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Expires: 2003-08-03
Abstract
Abstract An electric motor includes an end wall having a collector mounted therein. The brushes of the motor are affixed to spring levers resiliently mounted on the end wall. The end wall includes a diaphragm-like portion having a release pin extending radially inward. The spring lever with the affixed motor brush is maintained in a mounting position by contact with a holding pin. After the assembly of the collector between the brushes, the diaphragm is compressed to push the release pin into the lever. The lever is freed from contact with the holding pin and is released to allow the brush to contact the collector.
Inventors
- 👤 Albert Kluck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:15
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/143; H02K5/145; H01; H01R; H01R39/00; H01R39/02; H01R39/42; H02K2205/00; H02K2205/06
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
113 words
An electric motor comprising: a housing, a collector mounted in said housing, a wall comprising an end shield of said housing, a lever affixed to said wall and a motor brush mounted on said lever, said lever being biased to urge said brush into contact with said collector, means for holding said lever in a mounting position, a release pin projecting from a portion of said wall, said wall portion being movable such that upon the compression of said wall portion, said release pin contacts said lever thereby radially moving said lever from contact with said means for holding said lever in said mounting position and permitting said brush to contact said collector.
Claim 2
Dependent Claim
113 words
An electric motor comprising: a housing, a collector mounted in said housing, a wall comprising an end shield of said housing, a lever affixed to said wall and a motor brush mounted on said lever, said lever being biased to urge said brush into contact with said collector, means for holding said lever in a mounting position, a release pin projecting from a portion of said wall, said wall portion being movable such that upon the compression of said wall portion, said release pin contacts said lever thereby radially moving said lever from contact with said means for holding said lever in said mounting position and permitting said brush to contact said collector.
Claim 3
Dependent Claim
31 words
The motor of claim 1 wherein said means for holding said lever in a mounting position comprises a holding pin projecting from said wall into the swivelling range of said lever.
Claim 4
Dependent Claim
25 words
The motor of claim 2 wherein upon the compression of said wall portion, said lever is moved radially away from contact with said holding pin.
Claim 5
Dependent Claim
44 words
The motor of claim 2 wherein said holding pin includes an inclined front face, said lever riding on said holding pin front face and being moved in an axial direction away from said wall when said lever is being moved into said mounting position.
Claim 6
Dependent Claim
18 words
The motor of claim 1 wherein said release pin includes an inclined front face at its end portion.
Claim 7
Dependent Claim
52 words
The motor of claim 1 wherein said lever comprises a leaf spring having a distal end and a mounting axis end, said lever resting against said means for holding said lever when in said mounting position, and said release pin contacting said lever between said distal end and said mounting axis end.
Claim 8
Dependent Claim
22 words
The motor of claim 1 wherein said movable wall portion comprises a circular diaphragm with said release pin projecting from said diaphragm.
Claim 9
Dependent Claim
93 words
An electric motor, or the like, comprising: a housing for rotatably supporting an armature; a collector mounted in said housing; at least one brush resiliently mounted in said housing; means in said housing for arresting said brush in a mounting position; said housing including a wall having at least a portion which is moveable, whereby when said moveable portion is moved in a predetermined direction, said brush is freed from said mounting position, said brush when freed from said mounting position being movable to an operating position in resilient contact with said collector.
Claim 10
Dependent Claim
93 words
An electric motor, or the like, comprising: a housing for rotatably supporting an armature; a collector mounted in said housing; at least one brush resiliently mounted in said housing; means in said housing for arresting said brush in a mounting position; said housing including a wall having at least a portion which is moveable, whereby when said moveable portion is moved in a predetermined direction, said brush is freed from said mounting position, said brush when freed from said mounting position being movable to an operating position in resilient contact with said collector.
Claim 11
Dependent Claim
24 words
Apparatus in accordance with claim 8, wherein said wall comprises an end shield of said housing, said end shield being formed of plastic material.
Claim 12
Dependent Claim
56 words
Apparatus in accordance with claim 8, wherein said wall comprises an end shield, and said apparatus further comprises a lever swivelably mounted on said end shield and carrying said brush, said lever being biased to urge said brush into radial engagement with said collector, said lever being retainable in said maounting position by said arresting means.
Claim 13
Dependent Claim
55 words
Apparatus in accordance with claim 10, wherein said arresting means comprises a detent carried by said movable portion of said wall which engages said lever in said mounting position and wherein displacement of said moveable portion of said wall in said predetermined direction said detent is moved out of the swiveling range of said lever.
Claim 14
Dependent Claim
51 words
Apparatus in accordance with claim 10, wherein said movable portion and said lever cooperate whereby displacement of said moveable portion in said predetermined direction moves said lever in a direction deviating from its swivel direction and out of engagement with said arresting means, thereby releasing said lever from said mounting position.
Claim 15
Dependent Claim
72 words
Apparatus in accordance with claim 12, wherein said arresting means comprises a holding pin projecting from said end shield and extending into the swiveling range of said lever, and whereby pressure exerted on the outside of said end shield in the area of said portion moves said portion in said predetermined direction to thereby move said lever to a distance from said end shield greater than the length of said holding pin.
Claim 16
Dependent Claim
34 words
Apparatus in accordance with claim 13, further comprising a release pin integrally formed on said moveable portion and having a front face upon which said lever in said mounting position rests under axial prestress.
Claim 17
Dependent Claim
52 words
Apparatus in accordance with claim 13, wherein said holding pin has a front face rising in an approximately radial direction from the inside to the outside, said lever riding on said front face and being moved in an axial direction away from said end shield when being brought to said mounting position.
Claim 18
Dependent Claim
41 words
Apparatus in accordance with claim 14, wherein said lever comprises a leaf spring, said leaf spring rests upon said front face when in said mounting position, said release pin disposed between said holding pin and the mounting point of said lever.
Claim 19
Dependent Claim
59 words
Apparatus in accordance with claim 10, comprising a release pin integrally formed with said moveable portion, said arresting means comprising a detent formed on said release pin and adapted to engage said lever and whereby pressure exerted from outside said end shield on said moveable portion moves said detent in an axial direction out of engagement with said lever.
Claim 20
Dependent Claim
34 words
Apparatus in accordance with claim 10, comprising a pin integrally formed on said moveable portion, said arresting means comprising of surface of said pin, said pin being swivelable out of engagement of said lever.
Claim 21
Dependent Claim
31 words
Apparatus in accordance with claim 13, wherein said moveable portion is in the form of a circular diaphragm and said release pin is formed on the center of said circular diaphragm.
Claim 22
Dependent Claim
18 words
Apparatus in accordance with claim 8, wherein substantially all of said wall serves as a flexible diaphragm portion.
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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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |