Patent US5168844A successfully refreshed from Google Patents.
US5168844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapter system for use with an internal combustion engine flushing apparatus
Assignee: BILSTEIN Corp OF AMERICA
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Filing: 1991-05-20
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Granted: 1992-12-08
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Expires: 2011-05-20
Abstract
Abstract An adapter system for use with an internal combustion engine flushing apparatus which permits universal connection to the crank case and the lubrication system of a large number of different sizes and types of internal combustion engines. The adapter system comprises a first adapter referred to as a crank case adapter enabling a hose of a flushing apparatus to be connected within the drain plug port of an oil path of the engine. This first adapter is provided with a mechanism to enable the adapter to fit within the drain plug port of substantially all automotive vehicle internal combustion engines without being threadably secured within the drain plug hole. A second adapter set or so called lubrication system adapter set is comprised of a plurality of different lubrication system adapter pieces which individually or in combination fit at the oil filter port leading to the lubrication system of the internal combustion engine. The various second adapter pieces individually or in combination fit within the oil filter port leading to the lubrication system in substantially internal combustion engines. In this way, a second conduit from the flushing apparatus can be connected to the vehicle engine so that a flushing solution in the apparatus can be circulated through and clean the internal combustion engine.
Inventors
- 👤 Erik F. M. Waelput
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:31
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/0408; B; B01; B01D; B01D35/00; B01D35/30; B01D35/306; F01M11/0458; F02; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
169 words
An adapter system for use with an internal combustion engine flushing apparatus which permits universal connection to the crank case and oil filter port of large number of different sizes and types of internal combustion engines for introducing fluid through the oil filter port and draining of said fluid through the crankcase, said adapter system comprising: a) an oil pan adapter sized to fit within the drain plug port of an oil pan of the engine, b) means associated with said oil pan adapter to enable the adapter to fit within said drain plug port of substantially all internal combustion engines without being threadedly secured in the drain plug port, and c) a lubrication system adapter set comprised of a plurality of adapter pieces which are selectively usable at the oil filter port leading to the lubrication system of the engine, such lubrication system adapter pieces individually or in combination fitting around the oil filter port of substantially all internal combustion engines and creating a liquid tight seal therewith.
Claim 2
Dependent Claim
169 words
An adapter system for use with an internal combustion engine flushing apparatus which permits universal connection to the crank case and oil filter port of large number of different sizes and types of internal combustion engines for introducing fluid through the oil filter port and draining of said fluid through the crankcase, said adapter system comprising: a) an oil pan adapter sized to fit within the drain plug port of an oil pan of the engine, b) means associated with said oil pan adapter to enable the adapter to fit within said drain plug port of substantially all internal combustion engines without being threadedly secured in the drain plug port, and c) a lubrication system adapter set comprised of a plurality of adapter pieces which are selectively usable at the oil filter port leading to the lubrication system of the engine, such lubrication system adapter pieces individually or in combination fitting around the oil filter port of substantially all internal combustion engines and creating a liquid tight seal therewith.
Claim 3
Dependent Claim
51 words
The adapter system of claim 1 further characterized in that the oil pan adapter comprises means for causing the oil pan adapter to engage a portion of the engine block surrounding the drain plug port with a snug liquid tight seal in substantially all commercially used automotive vehicle internal combustion engines.
Claim 4
Dependent Claim
49 words
The adapter system of claim 1 further characterized in that the lubrication system adapter set comprises at least an adapter threadedly engagable with threads surrounding an oil filter port of an engine block and at least one adapter threadedly engagable with a post projecting at the oil filter part.
Claim 5
Dependent Claim
61 words
The adapter system of claim 1 further characterized in that the lubrication system adapter set comprises a plurality of adapters threadedly engagable with threads surrounding an oil filter part in the same manner as an oil filter engages said threads, and at least one adapter threadedly engagable with a post projecting outwardly from the engine block at the oil filter port.
Claim 6
Dependent Claim
154 words
An adapter for use with an internal combustion engine flushing apparatus permitting connection of a fitting at a large number of different types and sizes of oil drain plug ports of internal combustion engines, said adapter comprising: a) a fitting for connection to a conduit from an internal combustion engine flushing apparatus, b) a pair of fingers extending from said fitting and having hook ends sized to be inserted into the oil drain plug port when both fingers are oriented in a first direction, c) means for changing the orientation of at least one of said fingers to cause the latter finger to be oriented in a second direction and which thereby hooks said fitting at said drain plug port, and d) sleeve means associated with said fitting and engaging the exterior surface of the internal combustion engine in a liquid tight seal and thereby sealingly holding said fitting at said drain plug port.
Claim 7
Dependent Claim
154 words
An adapter for use with an internal combustion engine flushing apparatus permitting connection of a fitting at a large number of different types and sizes of oil drain plug ports of internal combustion engines, said adapter comprising: a) a fitting for connection to a conduit from an internal combustion engine flushing apparatus, b) a pair of fingers extending from said fitting and having hook ends sized to be inserted into the oil drain plug port when both fingers are oriented in a first direction, c) means for changing the orientation of at least one of said fingers to cause the latter finger to be oriented in a second direction and which thereby hooks said fitting at said drain plug port, and d) sleeve means associated with said fitting and engaging the exterior surface of the internal combustion engine in a liquid tight seal and thereby sealingly holding said fitting at said drain plug port.
Claim 8
Dependent Claim
33 words
The adapter system of claim 5 further characterized in that a sealing element is located on a face of said sleeve means and sealingly engages an exterior wall of the internal combustion engine.
Claim 9
Dependent Claim
43 words
The adapter system of claim 5 further characterized in that a threaded element extends from said fitting and said sleeve means is threadedly shiftable along said threaded element to engage the exterior surface of the engine and thereby accommodate different engine wall thicknesses.
Claim 10
Dependent Claim
171 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section for connection to an externally threaded post projecting from an engine at an oil filter port; and e) said adapter set comprises a sleeve for connection to said cap and having a first threaded section for connection to the threaded means on said cap, said sleeve also having a second threaded section for engaging the threaded section surrounding the oil filter port.
Claim 11
Dependent Claim
171 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section for connection to an externally threaded post projecting from an engine at an oil filter port; and e) said adapter set comprises a sleeve for connection to said cap and having a first threaded section for connection to the threaded means on said cap, said sleeve also having a second threaded section for engaging the threaded section surrounding the oil filter port.
Claim 12
Dependent Claim
49 words
The adapter system of claim 8 further characterized in that said adapter set comprises a diametrically enlarged plate to extend over said oil filter port, said plate having a threaded section for connection to the second threaded section of said sleeve or to the threaded means on said cap.
Claim 13
Dependent Claim
160 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section for connection to an externally threaded post projecting from an engine at an oil filter port; and e) said adapter set comprises a diametrically reduced sleeve for connection to the threaded section of said cap, said diametrically reduced sleeve also having a threaded section for connection to said internal combustion engine.
Claim 14
Dependent Claim
160 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section for connection to an externally threaded post projecting from an engine at an oil filter port; and e) said adapter set comprises a diametrically reduced sleeve for connection to the threaded section of said cap, said diametrically reduced sleeve also having a threaded section for connection to said internal combustion engine.
Claim 15
Dependent Claim
142 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section for connection to an externally threaded post projecting from an engine at an oil filter port; and e) said adapter set comprises a plug for connection to the threaded section of said cap.
Claim 16
Dependent Claim
142 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section for connection to an externally threaded post projecting from an engine at an oil filter port; and e) said adapter set comprises a plug for connection to the threaded section of said cap.
Claim 17
Dependent Claim
189 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section coaxial with said threaded means for connection to an externally threaded post projecting from an engine at an oil filter port; e) said cap having a first open ended passageway of a given diameter terminating at its appropriate ends with threads to engagingly receive said fitting and said threaded section, respectively; f) said cap having a threaded cavity surrounding said threaded section constituting said threaded means; g) said cap having an open ended bore communicating said passageway with said cavity.
Claim 18
Dependent Claim
189 words
An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said adapter set comprising: a) a cap for disposition over the oil filter port; b) means associated with said cap for connection to a fitting on an end of the conduit from the flushing apparatus; c) threaded means on said cap for engaging a threaded section surrounding the oil filter port and retaining said cap over said port on the engine with a liquid tight seal; d) said cap also having a threaded section coaxial with said threaded means for connection to an externally threaded post projecting from an engine at an oil filter port; e) said cap having a first open ended passageway of a given diameter terminating at its appropriate ends with threads to engagingly receive said fitting and said threaded section, respectively; f) said cap having a threaded cavity surrounding said threaded section constituting said threaded means; g) said cap having an open ended bore communicating said passageway with said cavity.
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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) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |