US2824945A - Plug for core holes or the like - Google Patents
Plug for core holes or the like Download PDFInfo
- Publication number
- US2824945A US2824945A US411682A US41168254A US2824945A US 2824945 A US2824945 A US 2824945A US 411682 A US411682 A US 411682A US 41168254 A US41168254 A US 41168254A US 2824945 A US2824945 A US 2824945A
- Authority
- US
- United States
- Prior art keywords
- plug
- hole
- jacket
- heating element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/06—Sealing by means of a swivel nut compressing a ring or sleeve
Definitions
- My invention relates to a core or bore hole plug and in its most particular aspect concerns a combined lead-in and support plug for an electrical heating element adapted tobe confined in the water jacket of a cylinder block, especially the cylinder block of an automobile engine. Such elements are adapted to be energized from an ordinary 110 volt outlet and are desirable as assuring ready starting of the engine in cold weather.
- Plugs heretofore proposed for the purpose indicated require tapping of the core hole formed in the cylinder block to receive the plug. This operation demands extra handling of the heavy blocks and is otherwise inconvenient. Moreover, it has been found that the screwedin plugs tend either to loosen in use or to become so fast in the block from corrosion as to make their removal, occasionally necessary to replace the heating element, extremely difficult, if not impossible. At best, some leakage through these plugs almost always occurs, the lost coolant tending to follow the course of the threads.
- My invention has as its principal object to provide a plug which overcomes the aforementioned faults.
- Figure 1 is a fragmentary section showing part of a cylinder block with the lead-in and support plug in place therein;
- Figure 2 is a side elevation
- Figure 3 is an exploded view of the several parts making up the plug.
- the cylinder block is denoted by the numeral 10, the particular wall shown being the external wall of a chamber 12 through which a coolant is circulated incident to the operation of the engine.
- a heating element 14, which may be of any appropriate type, is disposed within the chamber 12 in a manner assuring submergence thereof in the coolant.
- the heating element is held by a plug body member 18 suitably bored to receive the bifurcated end of the element and the lead 20.
- Member 18 is threaded at 22 and terminates in a flange 24 backing an adapter ring 38 through a sealing gasket 37.
- Ring 38 has a rim portion 26 of relatively thin section forming a pocket 28 adapted to receive the tapered or wedge portion 29 of a sleeve member 30 surrounding the member 18.
- Such sleeve has a shoulder 32 which abuts the outer margin of the core hole when the assembly is secured in place.
- a nut 34 carried by the member 18 operates to force the tapered portion 29 of the sleeve into the pocket 28. This results in expansion of the rim 26 against the annular wall 36 and provides an extremely tight fit assuring retention of the assembly and precluding loss of coolant.
- Both the nut 34 and the left-hand end of the member 2,824,945 Patented Feb. 25, 1958 18 are of hexagonal conformation, this in view of the particular tools contemplated for use in the application of the plug. It is preferred to form the member 18, the sleeve 30 and the adapter ring of brass or similar metal.
- an assembly comprising: an electrical heating element disposed within the chamber formed by said jacket, said heating element being carried by a plug member extending through said hole, said plug member being formed to accommodate electrical leads connected to said element, adapter means at the inner end of said plug having a body portion and an expansible portion of relatively thin section, said body portion including a shoulder which with said expansible portion provides a pocket, and means received in said pocket to expand said expansible portion into engagement with the wall of said untapped hole.
- an assembly comprising: an electrical heating element disposed within the chamber formed by said jacket, said heating element being carried by a plug member extending through said hole, said plug member having abutment means at its inner end, being formed to accommodate electrical leads connected to said element and including an unthreaded portion and a threaded portion, an adapter surrounding the unthreaded portion of said plug member having a body portion abutting said abutment means and an expansible portion of relatively thin section, said body portion including a shoulder which with said expansible portion provides a pocket, wedge means received in said pocket to expand said expansible portion into engagement with the wall of said untapped hole, and a nut on the threaded portion of said plug member externally of said chamber operating to load said wedge means.
- an assembly comprising: an electrical heating element disposed Within the chamber formed by said jacket, said heating element being carried by a plug member extending through said hole, said plug member having a flange at its inner end of a diameter less than that of said hole, being formed to accommodate electrical leads connected to said element and including an unthreaded portion and a threaded portion, an annular adapter surrounding the unthreaded portion of said plug member having a body portion abutting said flange and a rim portion of relatively thin section, said body portion including a shoulder which with said rim portion provides a pocket, and an annular wedge member received in said pocket to expand said rim portion into engagement with the wall of said untapped hole, said wedge member carrying a flange abutting the coolant jacket externally of said chamber and being loaded by a nut on the threaded portion of said plug member.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
' Feb. 25, 1958' A. DERUMAUX $824,945
PLUG FOR CORE HOLES OR THE LIKE Filed Feb. 23. 1954 Inventor Attorney United States Patent PLUG FOR CORE HOLES OR THE LIKE Alfred E. Derumaux, Oshawa, Ontario, Canada, assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application February 23, 1954, Serial No. 411,682 3 Claims. (Cl. 219-38) My invention relates to a core or bore hole plug and in its most particular aspect concerns a combined lead-in and support plug for an electrical heating element adapted tobe confined in the water jacket of a cylinder block, especially the cylinder block of an automobile engine. Such elements are adapted to be energized from an ordinary 110 volt outlet and are desirable as assuring ready starting of the engine in cold weather.
Plugs heretofore proposed for the purpose indicated require tapping of the core hole formed in the cylinder block to receive the plug. This operation demands extra handling of the heavy blocks and is otherwise inconvenient. Moreover, it has been found that the screwedin plugs tend either to loosen in use or to become so fast in the block from corrosion as to make their removal, occasionally necessary to replace the heating element, extremely difficult, if not impossible. At best, some leakage through these plugs almost always occurs, the lost coolant tending to follow the course of the threads.
My invention has as its principal object to provide a plug which overcomes the aforementioned faults.
Other objects and features of the invention will be apparent from the following specific description of a preferred embodiment thereof. The description will proceed with reference to the accompanying drawings in which:
Figure 1 is a fragmentary section showing part of a cylinder block with the lead-in and support plug in place therein;
Figure 2 is a side elevation; and
Figure 3 is an exploded view of the several parts making up the plug.
In Figures 1 and 2, the cylinder block is denoted by the numeral 10, the particular wall shown being the external wall of a chamber 12 through which a coolant is circulated incident to the operation of the engine. A heating element 14, which may be of any appropriate type, is disposed within the chamber 12 in a manner assuring submergence thereof in the coolant.
The heating element is held by a plug body member 18 suitably bored to receive the bifurcated end of the element and the lead 20. Member 18 is threaded at 22 and terminates in a flange 24 backing an adapter ring 38 through a sealing gasket 37. Ring 38 has a rim portion 26 of relatively thin section forming a pocket 28 adapted to receive the tapered or wedge portion 29 of a sleeve member 30 surrounding the member 18. Such sleeve has a shoulder 32 which abuts the outer margin of the core hole when the assembly is secured in place.
A nut 34 carried by the member 18 operates to force the tapered portion 29 of the sleeve into the pocket 28. This results in expansion of the rim 26 against the annular wall 36 and provides an extremely tight fit assuring retention of the assembly and precluding loss of coolant.
Both the nut 34 and the left-hand end of the member 2,824,945 Patented Feb. 25, 1958 18 are of hexagonal conformation, this in view of the particular tools contemplated for use in the application of the plug. It is preferred to form the member 18, the sleeve 30 and the adapter ring of brass or similar metal.
Having thus described and illustrated my invention what I claim is:
1. In association with a coolant jacket surrounding a combustion engine, said jacket having an untapped hole therein, an assembly comprising: an electrical heating element disposed within the chamber formed by said jacket, said heating element being carried by a plug member extending through said hole, said plug member being formed to accommodate electrical leads connected to said element, adapter means at the inner end of said plug having a body portion and an expansible portion of relatively thin section, said body portion including a shoulder which with said expansible portion provides a pocket, and means received in said pocket to expand said expansible portion into engagement with the wall of said untapped hole.
2. In association with a coolant jacket, surrounding a combustion engine, said jacket having an untapped hole therein, an assembly comprising: an electrical heating element disposed within the chamber formed by said jacket, said heating element being carried by a plug member extending through said hole, said plug member having abutment means at its inner end, being formed to accommodate electrical leads connected to said element and including an unthreaded portion and a threaded portion, an adapter surrounding the unthreaded portion of said plug member having a body portion abutting said abutment means and an expansible portion of relatively thin section, said body portion including a shoulder which with said expansible portion provides a pocket, wedge means received in said pocket to expand said expansible portion into engagement with the wall of said untapped hole, and a nut on the threaded portion of said plug member externally of said chamber operating to load said wedge means.
3. In association with a coolant jacket surrounding a combustion engine, said jacket having an untapped hole therein, an assembly comprising: an electrical heating element disposed Within the chamber formed by said jacket, said heating element being carried by a plug member extending through said hole, said plug member having a flange at its inner end of a diameter less than that of said hole, being formed to accommodate electrical leads connected to said element and including an unthreaded portion and a threaded portion, an annular adapter surrounding the unthreaded portion of said plug member having a body portion abutting said flange and a rim portion of relatively thin section, said body portion including a shoulder which with said rim portion provides a pocket, and an annular wedge member received in said pocket to expand said rim portion into engagement with the wall of said untapped hole, said wedge member carrying a flange abutting the coolant jacket externally of said chamber and being loaded by a nut on the threaded portion of said plug member.
References Cited in the file of this patent UNITED STATES PATENTS 351,414 Warner Oct. 26, 1886 410,848 McHugh Sept. 10, 1889 848,493 Redenbaugh Mar. 26, 1907 1,103,171 Bower July 14, 1914 2,401,847 Urbant et a1 June 11, 1946
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US411682A US2824945A (en) | 1954-02-23 | 1954-02-23 | Plug for core holes or the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US411682A US2824945A (en) | 1954-02-23 | 1954-02-23 | Plug for core holes or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
US2824945A true US2824945A (en) | 1958-02-25 |
Family
ID=23629886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US411682A Expired - Lifetime US2824945A (en) | 1954-02-23 | 1954-02-23 | Plug for core holes or the like |
Country Status (1)
Country | Link |
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US (1) | US2824945A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2905801A (en) * | 1957-04-15 | 1959-09-22 | Bleckmann Richard | Flange assembly |
US3143634A (en) * | 1961-05-08 | 1964-08-04 | Carter James B Ltd | Engine heater |
US3157773A (en) * | 1963-03-11 | 1964-11-17 | Bernard H Pickard | Engine block heater assembly |
US3209123A (en) * | 1963-05-29 | 1965-09-28 | Lynne E Windsor | Electric engine cooling jacket heater |
US3211888A (en) * | 1962-03-30 | 1965-10-12 | Carter James B Ltd | Electric engine cooling jacket heater |
US3229069A (en) * | 1963-10-03 | 1966-01-11 | Phillips Mfg Company Inc | Freeze plug hole heater |
US3280298A (en) * | 1964-04-24 | 1966-10-18 | Phillips Mfg Company Inc | Core plug heater |
US3456094A (en) * | 1966-06-20 | 1969-07-15 | Phillips Mfg Co Inc | Core plug heater |
US4286139A (en) * | 1979-12-26 | 1981-08-25 | J. I. Case Company | Coupling assembly for heating element |
US4851640A (en) * | 1986-10-17 | 1989-07-25 | The Budd Company | Frost plug heater |
US5553578A (en) * | 1995-10-24 | 1996-09-10 | Pyroil Canada | Washerless block heater |
US20130266300A1 (en) * | 2012-04-09 | 2013-10-10 | David Kreutzman | Renewable Energy Hot Water Heating Elements |
US10571135B2 (en) | 2012-04-09 | 2020-02-25 | David Kreutzman | Renewable energy hot water heater with heat pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US351414A (en) * | 1886-10-26 | Pipe-coupling | ||
US410848A (en) * | 1889-09-10 | Coupling for water-closet bowls | ||
US848493A (en) * | 1906-03-29 | 1907-03-26 | Adam Redenbaugh | Pipe-stopper or test-plug. |
US1103171A (en) * | 1914-02-09 | 1914-07-14 | Sales Company Inc | Sealing-plug for electrical water-heaters. |
US2401847A (en) * | 1944-04-18 | 1946-06-11 | Urbant Sam | Electrical heater for liquid cooled engines |
-
1954
- 1954-02-23 US US411682A patent/US2824945A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US351414A (en) * | 1886-10-26 | Pipe-coupling | ||
US410848A (en) * | 1889-09-10 | Coupling for water-closet bowls | ||
US848493A (en) * | 1906-03-29 | 1907-03-26 | Adam Redenbaugh | Pipe-stopper or test-plug. |
US1103171A (en) * | 1914-02-09 | 1914-07-14 | Sales Company Inc | Sealing-plug for electrical water-heaters. |
US2401847A (en) * | 1944-04-18 | 1946-06-11 | Urbant Sam | Electrical heater for liquid cooled engines |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2905801A (en) * | 1957-04-15 | 1959-09-22 | Bleckmann Richard | Flange assembly |
US3143634A (en) * | 1961-05-08 | 1964-08-04 | Carter James B Ltd | Engine heater |
US3211888A (en) * | 1962-03-30 | 1965-10-12 | Carter James B Ltd | Electric engine cooling jacket heater |
US3157773A (en) * | 1963-03-11 | 1964-11-17 | Bernard H Pickard | Engine block heater assembly |
US3209123A (en) * | 1963-05-29 | 1965-09-28 | Lynne E Windsor | Electric engine cooling jacket heater |
US3229069A (en) * | 1963-10-03 | 1966-01-11 | Phillips Mfg Company Inc | Freeze plug hole heater |
US3280298A (en) * | 1964-04-24 | 1966-10-18 | Phillips Mfg Company Inc | Core plug heater |
US3456094A (en) * | 1966-06-20 | 1969-07-15 | Phillips Mfg Co Inc | Core plug heater |
US4286139A (en) * | 1979-12-26 | 1981-08-25 | J. I. Case Company | Coupling assembly for heating element |
US4851640A (en) * | 1986-10-17 | 1989-07-25 | The Budd Company | Frost plug heater |
US5553578A (en) * | 1995-10-24 | 1996-09-10 | Pyroil Canada | Washerless block heater |
US5649511A (en) * | 1995-10-24 | 1997-07-22 | Pyroil Canada | Closure plugs |
US20130266300A1 (en) * | 2012-04-09 | 2013-10-10 | David Kreutzman | Renewable Energy Hot Water Heating Elements |
US8977117B2 (en) * | 2012-04-09 | 2015-03-10 | David Kreutzman | Renewable energy hot water heating elements |
US10571135B2 (en) | 2012-04-09 | 2020-02-25 | David Kreutzman | Renewable energy hot water heater with heat pump |
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