Patent US4706639A successfully refreshed from Google Patents.
US4706639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated direct ignition module
Assignee: Motors Liquidation Co
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Filing: 1986-12-04
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Granted: 1987-11-17
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Expires: 2006-12-04
Abstract
Abstract An ignition module that is adapted to be secured to an internal combustion engine. The module has a plastic housing and a metallic cover that is adapted to be secured to an engine. A plurality of ignition coils are located within the housing and cover. The lower wall of the plastic housing has conductors embedded therein that electrically connect the secondary windings of the coils to electrical connector assemblies that are carried by the housing and which are adapted to slip over the spark plugs of an engine. The connector assemblies include means for making an electrical connection to the terminals of the spark plugs. The ignition coils have laminated cores that are clamped between the housing and the cover. The cores directly contact the metallic cover so that the cores have a heat transfer path to the cover and are electrically connected to the cover.
Inventors
- 👤 James A. Boyer
- 👤 Bobbie D. Bridgewater
- 👤 Donald C. Warner
- 👤 Jerry L. Sturdivant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:13
CPC Classifications
F; F02; F02P; F02P13/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
212 words
An ignition module that is adapted to be mounted on an internal combustion engine and which is operative to electrically connect the secondary winding of an ignition coil to a spark plug of the engine comprising, a housing formed of electrical insulating material having a wall that faces the spark plug when the module is mounted on an engine, a metallic cover secured to said housing, said cover being adapted to be secured to said engine, an ignition coil disposed within said housing and cover having a laminated magnetic core and a secondary winding, said magnetic core being clamped between said housing and said metallic cover with a portion of said core directly engaging said cover whereby said core has a direct heat transfer path to said cover and is electrically connected to said cover, a tubular member formed of insulating material secured to said wall, said tubular member carrying a conductor means that is adapted to engage a terminal of a spark plug, the tubular member being positioned to slip over the spark plug when the module is assembled to the engine, and means connecting said secondary winding to said conductor means that is carried by said tubular member and which is adapted to engage a terminal of said spark plug.
Claim 2
Dependent Claim
212 words
An ignition module that is adapted to be mounted on an internal combustion engine and which is operative to electrically connect the secondary winding of an ignition coil to a spark plug of the engine comprising, a housing formed of electrical insulating material having a wall that faces the spark plug when the module is mounted on an engine, a metallic cover secured to said housing, said cover being adapted to be secured to said engine, an ignition coil disposed within said housing and cover having a laminated magnetic core and a secondary winding, said magnetic core being clamped between said housing and said metallic cover with a portion of said core directly engaging said cover whereby said core has a direct heat transfer path to said cover and is electrically connected to said cover, a tubular member formed of insulating material secured to said wall, said tubular member carrying a conductor means that is adapted to engage a terminal of a spark plug, the tubular member being positioned to slip over the spark plug when the module is assembled to the engine, and means connecting said secondary winding to said conductor means that is carried by said tubular member and which is adapted to engage a terminal of said spark plug.
Claim 3
Dependent Claim
22 words
The ignition module according to claim 1 where a shim formed of elastomeric material is interposed between said housing and said core.
Claim 4
Dependent Claim
232 words
An ignition module that is adapted to be mounted on an internal combustion engine and which is operative to electrically connect the secondary windings of a plurality of ignition coils to the spark plugs of the engine such that a secondary winding is connected to a pair of spark plugs comprising, a housing formed of electrical insulating material having a wall that faces the spark plugs when the module is mounted on an engine, a plurality of tubular members formed of insulating material secured to said wall, each tubular member carrying a conductor means that is adapted to engage a terminal of a spark plug, the tubular members being positioned to slip over a plurality of spark plugs when the module is assembled to the engine, at least two ignition coils carried by said housing, each ignition coil having a secondary winding, a plurality of conductors carried by said wall, each conductor being connected to a pad portion, a plurality of conductive springs, each spring electrically connecting a pad portion to one side of a said secondary winding, means respectively connecting each conductor carried by said wall to a respective conductor means carried by a respective tubular member, said conductors carried by said wall portion being arranged such that opposite ends of a secondary winding are respectively connected to a pair of spark plugs when said module is secured to said engine.
Claim 5
Dependent Claim
232 words
An ignition module that is adapted to be mounted on an internal combustion engine and which is operative to electrically connect the secondary windings of a plurality of ignition coils to the spark plugs of the engine such that a secondary winding is connected to a pair of spark plugs comprising, a housing formed of electrical insulating material having a wall that faces the spark plugs when the module is mounted on an engine, a plurality of tubular members formed of insulating material secured to said wall, each tubular member carrying a conductor means that is adapted to engage a terminal of a spark plug, the tubular members being positioned to slip over a plurality of spark plugs when the module is assembled to the engine, at least two ignition coils carried by said housing, each ignition coil having a secondary winding, a plurality of conductors carried by said wall, each conductor being connected to a pad portion, a plurality of conductive springs, each spring electrically connecting a pad portion to one side of a said secondary winding, means respectively connecting each conductor carried by said wall to a respective conductor means carried by a respective tubular member, said conductors carried by said wall portion being arranged such that opposite ends of a secondary winding are respectively connected to a pair of spark plugs when said module is secured to said engine.
Claim 6
Dependent Claim
32 words
The ignition module according to claim 3 where the module has a metallic cover member that is secured to said housing, the cover member being adapted to be secured to said engine.
Claim 7
Dependent Claim
21 words
The ignition module according to claim 3 where the conductors that are carried by said wall are embedded in said wall.
Claim 8
Dependent Claim
31 words
The ignition module according to claim 3 where the ignition coil and said wall having overlapped tubular portions and wherein a said electrically conductive spring is disposed within said overlapped portions.
Claim 9
Dependent Claim
59 words
The ignition module according to claim 3 where the ignition module has a metallic cover that is secured to said housing that is adapted to be secured to an engine and wherein each ignition coil has a laminated metallic magnetic core that is clamped between said housing and said cover, each magnetic core directly contacting the metallic cover member.
References Cited (Backward Citations)
US2509093A
Cited
US1378260A
Cited
US1532292A
Cited
US1692087A
Cited
US2446888A
Cited
US2478128A
Cited
US1008351A
Cited
US995400A
Cited
US1011884A
Cited
US2632132A
Cited
DE1148814B
Cited
US3153561A
Cited
DE1232399B
Cited
US3104658A
Cited
US3202146A
Cited
US3311783A
Cited
US3339010A
Cited
GB1170151A
Cited
GB1371042A
Cited
US3716038A
Cited
US3871737A
Cited
US3935852A
Cited
GB1498942A
Cited
US4248201A
Cited
US4195611A
Cited
US4392473A
Cited
US4463744A
Cited
US4432323A
Cited
US4446842A
Cited
US4461264A
Cited
US4382430A
Cited
WO1984000402A1
Cited
US4637368A
Cited
US4404951A
Cited
US4480377A
Cited
US4515141A
Cited
US4617907A
Cited
US4621881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |