US4154117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starter for internal combustion engines
Assignee: Societe de Paris et du Rhone SA
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Filing: 1977-12-12
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Granted: 1979-05-15
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Expires: 1997-12-12
Abstract
Abstract In order to hold the shaft of a starter motor against undue movement or whipping as a result of vibration communicated to it by the engine with which it is associated, the drive pinion assembly on the shaft is held steady by forming on it a conical surface which, when the starter is not operating, fits into a conical surface formed on a member which is fixed in position intermediate the ends of the drive shaft. The member may be a plate-like member with an opening lying at the bottom of a conical depression. It may be gripped between the yoke of the field magnet and the nose casing of the starter and may have locating means for positioning the yoke. Where a solenoid is used the member may carry a block forming a seal between the yoke and the solenoid casing, or it may be constructed to be gripped between the solenoid casing and the nose portion.
Inventors
- 👤 Alfred B. Mazzorana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:44
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/04; F02N15/06; F02N15/022; F02N15/025; F02N2015/061; Y; Y10; Y10T; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/132
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
In an electric starter for an internal combustion engine having a field magnet, a yoke for the field magnet, a motor shaft and a drive pinion assembly on the motor shaft movable between active and rest positions thereon, the improvement which consists in providing a male conical surface on the drive pinion assembly, a member intermediate the ends of the motor shaft which is fixed in position relative to the said yoke and a female conical surface on the said member into which fits the male conical surface on the drive pinion assembly when this is in its rest position.
Claim 2
Dependent Claim
100 words
In an electric starter for an internal combustion engine having a field magnet, a yoke for the field magnet, a motor shaft and a drive pinion assembly on the motor shaft movable between active and rest positions thereon, the improvement which consists in providing a male conical surface on the drive pinion assembly, a member intermediate the ends of the motor shaft which is fixed in position relative to the said yoke and a female conical surface on the said member into which fits the male conical surface on the drive pinion assembly when this is in its rest position.
Claim 3
Dependent Claim
34 words
An electric starter according to claim 1 wherein the said member is a plate-like member having a conical depression with an opening at the bottom of the depression through which the motor shaft passes.
Claim 4
Dependent Claim
22 words
An electric starter according to claim 1 wherein the said member is held in position against the yoke for the field magnet.
Claim 5
Dependent Claim
54 words
An electric starter according to claim 3 having a solenoid housed in a casing adjacent the said yoke and a shift lever operatively connected between the solenoid and the pinion, the said member bearing an abutment for the shift lever and a block which forms a seal between the yoke and the solenoid casing.
Claim 6
Dependent Claim
37 words
An electric starter according to claim 1 having a casing forming a nose portion, the said member being in the form of a plate gripped between the yoke for the field magnet and the said nose portion.
Claim 7
Dependent Claim
62 words
An electric starter according to claim 1 wherein the drive pinion assembly comprises a pinion, a freewheel drive for the pinion, a cage round the drive and an internally splined sleeve which engages splines on the motor shaft, the cage and the splined sleeve being made as one piece, and the conical surface being provided at the end of the splined sleeve.
Claim 8
Dependent Claim
36 words
An electric starter according to claim 5 wherein the said member is provided with locating means which cooperate with the yoke and the nose portion to position the yoke correctly in relation to the nose portion.
Claim 9
Dependent Claim
18 words
An electric starter according to claim 7 wherein the locating means comprise portions pressed out from the plate.
Claim 10
Dependent Claim
21 words
An electric starter according to claim 5 wherein the yoke and the nose portion have mutually facing faces which are plane.
Claim 11
Dependent Claim
32 words
An electric starter according to claim 5 having a solenoid housed in a casing adjacent the said yoke wherein the member is also gripped between the solenoid casing and the nose portion.
Claim 12
Dependent Claim
22 words
An electric starter according to claim 10 wherein the solenoid casing and the nose portion have mutually facing faces which are plane.
Claim 13
Dependent Claim
140 words
An electric starter for an internal combustion engine having a solenoid, a casing housing the solenoid, a field magnet, a yoke for the field magnet, a motor shaft, a drive pinion assembly on the motor shaft movable between active and rest positions thereon, a male conical surface on the drive pinion assembly, a member providing an operative connection between the solenoid and the pinion, a casing forming a nose portion, and a plate-like member sandwiched and forming a seal between the nose portion on the one hand and the solenoid housing and yoke on the other hand, the plate-like member having a concial depression with an opening at the bottom thereof through which the motor shaft passes, the male conical surface on the drive pinion assembly fitting into this recess when the drive pinion assembly is in its rest position.
Claim 14
Dependent Claim
140 words
An electric starter for an internal combustion engine having a solenoid, a casing housing the solenoid, a field magnet, a yoke for the field magnet, a motor shaft, a drive pinion assembly on the motor shaft movable between active and rest positions thereon, a male conical surface on the drive pinion assembly, a member providing an operative connection between the solenoid and the pinion, a casing forming a nose portion, and a plate-like member sandwiched and forming a seal between the nose portion on the one hand and the solenoid housing and yoke on the other hand, the plate-like member having a concial depression with an opening at the bottom thereof through which the motor shaft passes, the male conical surface on the drive pinion assembly fitting into this recess when the drive pinion assembly is in its rest position.
Claim 15
Dependent Claim
20 words
An electric starter according to claim 12 wherein the said member has a coating to facilitate forming the said seal.
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) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |