US4920295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternator
Assignee: Individual
•
Filing: 1988-08-10
•
Granted: 1990-04-24
•
Expires: 2008-08-10
Abstract
Abstract An alternator or synchronous generator, principally for supplying electrical current to batteries and other apparatus in cars, ships, aeroplanes and other devices for transport. The alternator consists primarily of a hollow stator with windings of which the inner shell is conical, a rotor with a conical outer shell which operates in conjunction with the conical inner shell of the stator, a shaft which rotates in the housing of the alternator, a slide between the shaft and the rotor for the axial motion of the rotor over the shaft and in the stator for the purpose of current control, a device for sliding the rotor over the shaft into the stator, a device for sliding the rotor over the shaft out of the stator, and, on the rotating shaft a centrifugal voltage controller for fine-adjusting the means which slides the rotor out of the stator and keeps the induced current voltage the same.
Inventors
- 👤 Karel Holden
- 👤 Ladislava Holdenova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:22
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/02; H02K21/021; H02K21/022; H02K21/025; H02K21/027; H02K21/12; H02K21/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
227 words
Alternator, comprising in combination a housing, a hollow stator with windings fixed in said housing and having a conical inner shell, an axial rotary shaft in said housing, a rotor with a conical outer shell on said shaft and operating in conjunction with the conical inner shell of said stator, a slide between the shaft and the rotor for the axial motion of said rotor over the shaft and in said stator for the current control, a disc mounted on said shaft and dispersed near one end of said rotor, a compression spring for sliding said rotor over the shaft into said stator and arranged between said rotor and disc, a thrust plate movable over the shaft and disposed near the other end of said rotor, a thrust ring arranged around said shaft, a compression spring for sliding said rotor over the shaft out of the stator and arranged between said thrust plate and thrust ring, setting bolts working in conjunction with said thrust ring for the adjustment of the compression of said compression spring, and a centrifugal voltage controller for fine-adjusting the compression of said compression spring sliding said rotor out of the stator and keeping the induced current voltage the same, said controller fixed on said shaft and having swivel arms with weights to exert a pressure on the adjacent thrust plate and compression spring.
Claim 2
Dependent Claim
227 words
Alternator, comprising in combination a housing, a hollow stator with windings fixed in said housing and having a conical inner shell, an axial rotary shaft in said housing, a rotor with a conical outer shell on said shaft and operating in conjunction with the conical inner shell of said stator, a slide between the shaft and the rotor for the axial motion of said rotor over the shaft and in said stator for the current control, a disc mounted on said shaft and dispersed near one end of said rotor, a compression spring for sliding said rotor over the shaft into said stator and arranged between said rotor and disc, a thrust plate movable over the shaft and disposed near the other end of said rotor, a thrust ring arranged around said shaft, a compression spring for sliding said rotor over the shaft out of the stator and arranged between said thrust plate and thrust ring, setting bolts working in conjunction with said thrust ring for the adjustment of the compression of said compression spring, and a centrifugal voltage controller for fine-adjusting the compression of said compression spring sliding said rotor out of the stator and keeping the induced current voltage the same, said controller fixed on said shaft and having swivel arms with weights to exert a pressure on the adjacent thrust plate and compression spring.
Claim 3
Dependent Claim
47 words
Alternator as defined in claim 1 in which the rotor has an axial chamber, housing the thrust ring and one end of the compression spring arranged between the thrust plate movable over the shaft and said thrust ring, said thrust ring being fixed to the setting bolts.
Claim 4
Dependent Claim
100 words
Alternator as defined in claim 1 in which the centrifugal voltage controller consists of a collar fixed on the rotary shaft, two pairs of arms with weights pivotally secured on said collar, a striker plate for each pair of arms and mounted on said collar, a striker between each pair of arms and operating in conjunction with said striker plate to limit the extreme positions of said arms with weights, a pair of draw springs between said two pairs of arms, each arm provided with a cam end operating in conjunction with the thrust plate free movable over the shaft.
References Cited (Backward Citations)
US1194645A
Cited
US646309A
Cited
US1039197A
Cited
US1763104A
Cited
US1935005A
Cited
US1979445A
Cited
US2072008A
Cited
FR1009925A
Cited
US2492810A
Cited
DE839224C
Cited
GB733975A
Cited
DE1088600B
Cited
US3299335A
Cited
SU626470A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |