CA2044239A1 - Twin-seal "f" male coaxial connector - Google Patents
Twin-seal "f" male coaxial connectorInfo
- Publication number
- CA2044239A1 CA2044239A1 CA 2044239 CA2044239A CA2044239A1 CA 2044239 A1 CA2044239 A1 CA 2044239A1 CA 2044239 CA2044239 CA 2044239 CA 2044239 A CA2044239 A CA 2044239A CA 2044239 A1 CA2044239 A1 CA 2044239A1
- Authority
- CA
- Canada
- Prior art keywords
- connector
- cable
- clamp
- seal
- sleeve
- 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.)
- Abandoned
Links
Abstract
TWIN-SEAL
COAXIAL CABLE CONNECTOR
ABSTRACT
This invention is a connector which is used to integrate an RG-type coaxial cable both electrically and mechanically at an interface to electronic equipment used in a cable television system. The connector is presented as a one-piece device comprised of an external body and several internal parts. Three unique components integral to the connector constitute the main focus of this invention, while an additional two standard seals complete the device. A main body serves as a housing for a sleeve component and a clamp component, as well as two seals. Standard RG-type coaxial cable is installed within the connector and assumes a position relative to the sleeve and clamp, which are loose within the main body. The assembled part is then mated with an F-type female interface, at which time clamping and sealing mechanisms are employed to both retain the cable mechanically and create a moisture-proof seal. Cable retention is achieved as a unique clamp is caused to close upon the outer layer of RG-type cable. A
moisture-proof seal is accomplished as seals at the two possible points of moisture entry into the connector are compressed to the extent that they exclude any leakage to the inside. Electrical connection is ensured as a continuous electrical path is provided for the completed installation.
COAXIAL CABLE CONNECTOR
ABSTRACT
This invention is a connector which is used to integrate an RG-type coaxial cable both electrically and mechanically at an interface to electronic equipment used in a cable television system. The connector is presented as a one-piece device comprised of an external body and several internal parts. Three unique components integral to the connector constitute the main focus of this invention, while an additional two standard seals complete the device. A main body serves as a housing for a sleeve component and a clamp component, as well as two seals. Standard RG-type coaxial cable is installed within the connector and assumes a position relative to the sleeve and clamp, which are loose within the main body. The assembled part is then mated with an F-type female interface, at which time clamping and sealing mechanisms are employed to both retain the cable mechanically and create a moisture-proof seal. Cable retention is achieved as a unique clamp is caused to close upon the outer layer of RG-type cable. A
moisture-proof seal is accomplished as seals at the two possible points of moisture entry into the connector are compressed to the extent that they exclude any leakage to the inside. Electrical connection is ensured as a continuous electrical path is provided for the completed installation.
Description
BACKGROUND
An RG coaxial cable (Fig.1~ consists of a centrally located center conductor and typically five concentric layers The center conductor 1 is oF either copper-clad steel or solid copper material, It is surrounded by a dielectric layer 2 which is typically comprised of cellular polyethylene. A thin layer of aluminum foil 3 is wrapped about the dialectric, with the purpose of providing electrical grounding and RFI shielding, Additional groundin~ is provided by a system of braid;ng 4 which surrounds the aluminum foil. The amount of braiding o~ten varias amongst cables and is de~cribed as a percentage o~ coverage, for examplè, 40%, 60%, 95%, On occasion, double-shielding is encountered such that there is an additional foil and braiding layer, which acts as a protection against signal leakage and electromagnetic interference.
A seeond layer 5 o~ typically polyethelene or PYC material acts as the outside protective jacket.
Connectors for the cable groups defined by the above description are generally used at cable interfaces with equipment, The cable is prepared by trimming as described by Fig.1. Th pa~e ~
" ~ ..
.
`' ' :
. . . .
....
.
An RG coaxial cable (Fig.1~ consists of a centrally located center conductor and typically five concentric layers The center conductor 1 is oF either copper-clad steel or solid copper material, It is surrounded by a dielectric layer 2 which is typically comprised of cellular polyethylene. A thin layer of aluminum foil 3 is wrapped about the dialectric, with the purpose of providing electrical grounding and RFI shielding, Additional groundin~ is provided by a system of braid;ng 4 which surrounds the aluminum foil. The amount of braiding o~ten varias amongst cables and is de~cribed as a percentage o~ coverage, for examplè, 40%, 60%, 95%, On occasion, double-shielding is encountered such that there is an additional foil and braiding layer, which acts as a protection against signal leakage and electromagnetic interference.
A seeond layer 5 o~ typically polyethelene or PYC material acts as the outside protective jacket.
Connectors for the cable groups defined by the above description are generally used at cable interfaces with equipment, The cable is prepared by trimming as described by Fig.1. Th pa~e ~
" ~ ..
.
`' ' :
. . . .
....
.
2~ ~2~9 center conductor 1 is exposed to a length of typically l/4 inch and the cable outer layer 5 is further trimmed back by typically 1/4 inch. The braiding system 4 is then pulled back over the outer layer as shown to expose the aluminum foil 3. The purpose of this operation is to allow a continuous ground during the subsequent connector installation, as it is almost always the case that an electrically conductive sleeve is fitted between the aluminum foil layer 3 and the braiding 4. The exposure of the center conductor 1, which carries electrical signals, allows it to contact with equipment which is designed to accept the center.
The difficulties encountered at connector interfaces extend beyond simply the continuation of a signal. It is required ~hat the connector be able to grasp the cable with enough strength such that considerable tension on the cable will not cause the cable to pull free of the connector. Also, cables are often expossd to severe environmental conditions and so, the connactor must be sealed against water and moisture ingress. As well, it must be protected against the infiltration of external signals. These are problems which must be resolved by the current design.
In the past, connectors have typically addressed only some of the above requirements. The mechanical retention of the cable has been a priority and this was achieved by simply crimping an annular sleeve over the cable outer lay~r by means of a hex crimpA While effective mechanically, crimping in this manner allows water to ~r~ely enter the system because complete closure is absent at the points of the hex. Likewise, external signals can penetrate through and disrupt the signal. As well, due to the nature of the previously accepted design, there are several o-ther regions within the connector where corruption of the signal can originate. As the requirements of systems, and in particular connector interfaces, has been upgraded, it becomes imperative to design a connector of higher quality which can meet higher standards.
page 2 X3~
OBJECT~VES OF THE CURR~NT INV~NTION
In order for a design to be effective, it must be marketable and it must be able to meet its technical r0quirements.
Therefore, it ~ust be easy to install and it must meet its requirements in as simple a manner as possible.
One objective of the current invention is that it be craft sensitive, that is, it must be easy to install, it must be economical, and it must be ef~ective. It was required that the device is presented as a single piece, albeit several parts assembled as one piece, to guard against the possibilty that during installation problems may occur as minute pieces are easily misplaced. Further, in order to facilitate the connector installation, it was preferable to design a connector in which no special tooling is required in order to achieve a connection, which is the case with several prior art inventions. Therefore, the current invention is installed with the use of a standard hex wrench.
The technical objectives are also achieved by the current invention. The connector is able to grasp the cable with enough strength that the pullout force which is needed in order to detach the cable exceeds the design capabilities of the cable, that is, any tension failure is traced back to the cable rather than the connector. The device achieves sealiny at both the front and the back end of the connector, which are the two possible points of liquid ingress.
DESCRIPTION OF THE DRAWINGS
Five drawings are presented as a reference for the complete description of the current invention, which follows thereafter.
FIG. 1 illustrates a typical RG-type cable, as well as the trimming preparation required prior to connector installation.
FIG. 2 describes the configuration of the connector, as well as the cable position immediately after its installation.
FIG. 3 details the form and features of each of the three components integral to this invention.
FIG. ~ describes the mechanisms employed which allow the current invention to successfully meet its objectives, as the assembly of FIG. 2 is mated with an F-type female interface.
Fig. 5 is a series of pictorial illustrations which describe the form and features of all components integral to the connector.
page 3 23~
SlJMMARY OF THE CURRENT INVENTION
Referring to Fig. 2 and Figs. 3(a)/3(b)/3(c), the components which comprise the current invention are as follows: the body oF
the connector 40, an internal sleeve ~0, an internal clamping device 60, a front seal 80~ and a rear seal 90.
Fig. 2 describes the connector in its assembled configuration.
Also shown is the installation of the cable onto the given devica.
It must be noted that all the internal parts of the connector are loose in relation to each other, that is, all parts are "floating", which is a feature which contri`butes to the overall versatility of the current invention. Although "floating", both the sleeve and the clamping device are assembled in such a way that they are locked inside the body. A certain amount of lateral movement is allowed to the sleeve and clamp along the axis of the connector.
During the installation of the device to a mating interface, this lateral movement is gradually eliminated as all the internal components, including the cable are locked in position as the threads 41 of the body are screwed onto the threads of the mating part 200 (see Fig. 4). Fig. 4 describes the configuration of the system after mating, 1n particular the distortions caused in certain components which allows the sealing and the clamping of the cable system.
A prepared cable is joined to the connector as follows: the aluminum foil 3 slips within the sleeve 20 and the cable is pushed forward (leftward in relation to the diagrams) until the cable dielectric 2 meets with the lip 22 of the sleeve, which acts as a stop in this regard. Also, as the cable is pushed forward, the braid 4 and the outer layer 5 of the cable~ override the sleeve, positioning itself loosely under the teeth ~2 of the clamp. As well, a section of the cable outer layer which does not override the sleeve is positioned loosely under the rear seal 90. During this cable installation, the positions of the internal clamp an~
sleeve are at the most forward positions (left-most). A stop ~0 on the body defines the position of the clamp whil~ a stop 6~ on the clamp defines the position of the sleeve It is noted that while the installation of the cable is a smooth operation, its subtractien from the connector is not. Due to the nature of the current invention, any attempt to remove the cable by pulling it back (to the right) causes the sealing and clamping mechanisms (describad further on) to come into play~
Therefore there is a resistance to the cable easily detaching itself from the connector. This inherent cable retention acts as a safeguard to certain installation difficulties. The complete sealing is then achieved by mating with an interface.
Referring to Fig. 4 for the mated configuration, sealing is achieved as the seal rings 80 and 90 are compressed while clamping page 4 is achieved as the clamp ring 60 closes upon the cable. As the mating part 200 is threaded into the body 100, it pushes the sleeve 20 backward (to the right). In turn, the clamp is also pushed backward and while so moving, its toothed end meets with a ridge 47 on the body's internal surface, which causes the clamp to close.
The -Final position o-f the clamp and sleeve is determined by a stop 43 on the body's internal surface. As diagrammed, the front seal ~0 is compressed betwserl the mating part, the sleeve and the body, which affords a reliable seal. The rear sealing is achieved when the cable outer layer lying below the rear seal 90 is expanded by the repositioning of the sleeve after mating such that it has extended beyond the seal. As a result, the cable outer layer compresses the seal.
DESCRIPTION OF THE INDIVIDUAL COMP~NENTS
Referring to Figures 3(a), 3(b), 3(c), for the body, sleeve and clamp, this section des-ribes the connector components in detail.
The body ~0 is machined from typically 7/16" hexagonal brass material. There are three internal undercuts and a threaded forward portion 41. The thread is a standard for the industry as all mating parts are designed with 3/8-32 threading. The first undercut 42 houses the front seal, the second undercut 45 encloses the clamp, and the third undercut 48 is designed to hold the rear seal. The ridge 47 controls the amount of compression endured by the clamp. The ridge 49 is of a diameter such that the cable can easily pass through into the connector. A stop 43 determines the final position of the sleeve and another stop 50 of the clamp undercut, deter~ines the initial position of the clamp. The external surface is shaped in such a manner that the connector can be easily grasped and held securely. A ridged area 5~ açts as a grip for the installer while the installer is pushing the cable into the connector.
The sleeve 20 is typically machined ~rom round brass material.
Its internal bore 23 is designed to slip oYer the cable aluminum foil and a stop 22 determines the final position of the cable.
Three ridges 24 on the back end of the sleeve expand the cable outer layer and also are designed to prevent pullout of the cable.
The surface 21 acts as a seat to the front seal and a stop 28 meets with a corresponding stop ~3 on the body to determine the final position of all the internal components. The surface 27 acts as a fitting for the clamp, while a ridge 26 prevents the clamp from detaching itself from the sleeve.
The clamp 60 is mashined from round plastic of a durable and resilient material, typically delrin. It is slotted in an unusual page 5 manner, as shown, with a through slot 69 and a partial slot 67.
Teeth 62 grip the cable outer layer. The internal surface 65 fits in position with a corresponding surface on the sleeve and the surface 64 fits loosely under an internal ridge 44 on the body. The through slot is necessary to allow the clamp to become smallar in diameter as it is assembled into position within an undercut in the body. Therefore, this slot serves as an assembly requirement~ The through slot also allows the clamp to close at the toothed end as the connector is mated. The partial slot at the rear end of the clamp allows it to close further at that section, which accomodates a need to achieve a high level of cable gripping.
These items are shown pictorially by Fig. 5. The assembly process is described following. All internal parts are fitted sequentially into the connector body. The rear seal is to be positioned first within its slot. Following is the clamp, which is slotted to allow it to slip through a smaller diameter to reach its desired location within an undercut. Next, the sleeve is press-fitted into the clamp as the ridge 26 causes the slotted clamp to expand and then contract after the ridge has passed through to position 66 of the clamp. The shape of the ridge and the diameters of the clamp, sleeve and body are such that it is impossible for the sleeve to disengage from the clamp. Finally, the front seal is loosely seated on the sleeve and within an undercut insida the body.
ADDITIONAL FEATURES OF THE CURR~NT INVENTION
The following notes describe several additional features which are inherent to this connector design:
The rear seal is achieved when the cable is expanded into the space occupied by the seal during the installation of the connector with a mating component~ This feature is unusual in that in almost all previous designs, the seal is designed to compress into space which is occupied by the cable.
Sealing and retention mechanisms are addressed individually with two independent internal components, a seal and a clamp. As a result, the weaknesses of either component does not compound with the weaknesses of the other component. The seal serves that function alone, and likewise the clamp serves that function alone.
Prior art desi`gns have attempted to combine these two functions with a single component. The current invention realizes that sealing is best achieved with a spongy material which is necessarily too weak to achieve a strong mechanical grip on a cable. Conversely, gripping is best achieved with a hard plastic material ~hich is often unable to seal as effectively as spongy material.
page 6 4Z3~3 While threading onto the mating component, the cable remains loose within the connector until typically the final thread turn, when the clamp mechanism comes into effect. The turning prior to the final turn is necessary to take up the slackness which is a~
fcature of the current design. Although loose prior to this stage, there is a cable retention mechanism which is inherent to the current invention which has been described previously.
The difficulties encountered at connector interfaces extend beyond simply the continuation of a signal. It is required ~hat the connector be able to grasp the cable with enough strength such that considerable tension on the cable will not cause the cable to pull free of the connector. Also, cables are often expossd to severe environmental conditions and so, the connactor must be sealed against water and moisture ingress. As well, it must be protected against the infiltration of external signals. These are problems which must be resolved by the current design.
In the past, connectors have typically addressed only some of the above requirements. The mechanical retention of the cable has been a priority and this was achieved by simply crimping an annular sleeve over the cable outer lay~r by means of a hex crimpA While effective mechanically, crimping in this manner allows water to ~r~ely enter the system because complete closure is absent at the points of the hex. Likewise, external signals can penetrate through and disrupt the signal. As well, due to the nature of the previously accepted design, there are several o-ther regions within the connector where corruption of the signal can originate. As the requirements of systems, and in particular connector interfaces, has been upgraded, it becomes imperative to design a connector of higher quality which can meet higher standards.
page 2 X3~
OBJECT~VES OF THE CURR~NT INV~NTION
In order for a design to be effective, it must be marketable and it must be able to meet its technical r0quirements.
Therefore, it ~ust be easy to install and it must meet its requirements in as simple a manner as possible.
One objective of the current invention is that it be craft sensitive, that is, it must be easy to install, it must be economical, and it must be ef~ective. It was required that the device is presented as a single piece, albeit several parts assembled as one piece, to guard against the possibilty that during installation problems may occur as minute pieces are easily misplaced. Further, in order to facilitate the connector installation, it was preferable to design a connector in which no special tooling is required in order to achieve a connection, which is the case with several prior art inventions. Therefore, the current invention is installed with the use of a standard hex wrench.
The technical objectives are also achieved by the current invention. The connector is able to grasp the cable with enough strength that the pullout force which is needed in order to detach the cable exceeds the design capabilities of the cable, that is, any tension failure is traced back to the cable rather than the connector. The device achieves sealiny at both the front and the back end of the connector, which are the two possible points of liquid ingress.
DESCRIPTION OF THE DRAWINGS
Five drawings are presented as a reference for the complete description of the current invention, which follows thereafter.
FIG. 1 illustrates a typical RG-type cable, as well as the trimming preparation required prior to connector installation.
FIG. 2 describes the configuration of the connector, as well as the cable position immediately after its installation.
FIG. 3 details the form and features of each of the three components integral to this invention.
FIG. ~ describes the mechanisms employed which allow the current invention to successfully meet its objectives, as the assembly of FIG. 2 is mated with an F-type female interface.
Fig. 5 is a series of pictorial illustrations which describe the form and features of all components integral to the connector.
page 3 23~
SlJMMARY OF THE CURRENT INVENTION
Referring to Fig. 2 and Figs. 3(a)/3(b)/3(c), the components which comprise the current invention are as follows: the body oF
the connector 40, an internal sleeve ~0, an internal clamping device 60, a front seal 80~ and a rear seal 90.
Fig. 2 describes the connector in its assembled configuration.
Also shown is the installation of the cable onto the given devica.
It must be noted that all the internal parts of the connector are loose in relation to each other, that is, all parts are "floating", which is a feature which contri`butes to the overall versatility of the current invention. Although "floating", both the sleeve and the clamping device are assembled in such a way that they are locked inside the body. A certain amount of lateral movement is allowed to the sleeve and clamp along the axis of the connector.
During the installation of the device to a mating interface, this lateral movement is gradually eliminated as all the internal components, including the cable are locked in position as the threads 41 of the body are screwed onto the threads of the mating part 200 (see Fig. 4). Fig. 4 describes the configuration of the system after mating, 1n particular the distortions caused in certain components which allows the sealing and the clamping of the cable system.
A prepared cable is joined to the connector as follows: the aluminum foil 3 slips within the sleeve 20 and the cable is pushed forward (leftward in relation to the diagrams) until the cable dielectric 2 meets with the lip 22 of the sleeve, which acts as a stop in this regard. Also, as the cable is pushed forward, the braid 4 and the outer layer 5 of the cable~ override the sleeve, positioning itself loosely under the teeth ~2 of the clamp. As well, a section of the cable outer layer which does not override the sleeve is positioned loosely under the rear seal 90. During this cable installation, the positions of the internal clamp an~
sleeve are at the most forward positions (left-most). A stop ~0 on the body defines the position of the clamp whil~ a stop 6~ on the clamp defines the position of the sleeve It is noted that while the installation of the cable is a smooth operation, its subtractien from the connector is not. Due to the nature of the current invention, any attempt to remove the cable by pulling it back (to the right) causes the sealing and clamping mechanisms (describad further on) to come into play~
Therefore there is a resistance to the cable easily detaching itself from the connector. This inherent cable retention acts as a safeguard to certain installation difficulties. The complete sealing is then achieved by mating with an interface.
Referring to Fig. 4 for the mated configuration, sealing is achieved as the seal rings 80 and 90 are compressed while clamping page 4 is achieved as the clamp ring 60 closes upon the cable. As the mating part 200 is threaded into the body 100, it pushes the sleeve 20 backward (to the right). In turn, the clamp is also pushed backward and while so moving, its toothed end meets with a ridge 47 on the body's internal surface, which causes the clamp to close.
The -Final position o-f the clamp and sleeve is determined by a stop 43 on the body's internal surface. As diagrammed, the front seal ~0 is compressed betwserl the mating part, the sleeve and the body, which affords a reliable seal. The rear sealing is achieved when the cable outer layer lying below the rear seal 90 is expanded by the repositioning of the sleeve after mating such that it has extended beyond the seal. As a result, the cable outer layer compresses the seal.
DESCRIPTION OF THE INDIVIDUAL COMP~NENTS
Referring to Figures 3(a), 3(b), 3(c), for the body, sleeve and clamp, this section des-ribes the connector components in detail.
The body ~0 is machined from typically 7/16" hexagonal brass material. There are three internal undercuts and a threaded forward portion 41. The thread is a standard for the industry as all mating parts are designed with 3/8-32 threading. The first undercut 42 houses the front seal, the second undercut 45 encloses the clamp, and the third undercut 48 is designed to hold the rear seal. The ridge 47 controls the amount of compression endured by the clamp. The ridge 49 is of a diameter such that the cable can easily pass through into the connector. A stop 43 determines the final position of the sleeve and another stop 50 of the clamp undercut, deter~ines the initial position of the clamp. The external surface is shaped in such a manner that the connector can be easily grasped and held securely. A ridged area 5~ açts as a grip for the installer while the installer is pushing the cable into the connector.
The sleeve 20 is typically machined ~rom round brass material.
Its internal bore 23 is designed to slip oYer the cable aluminum foil and a stop 22 determines the final position of the cable.
Three ridges 24 on the back end of the sleeve expand the cable outer layer and also are designed to prevent pullout of the cable.
The surface 21 acts as a seat to the front seal and a stop 28 meets with a corresponding stop ~3 on the body to determine the final position of all the internal components. The surface 27 acts as a fitting for the clamp, while a ridge 26 prevents the clamp from detaching itself from the sleeve.
The clamp 60 is mashined from round plastic of a durable and resilient material, typically delrin. It is slotted in an unusual page 5 manner, as shown, with a through slot 69 and a partial slot 67.
Teeth 62 grip the cable outer layer. The internal surface 65 fits in position with a corresponding surface on the sleeve and the surface 64 fits loosely under an internal ridge 44 on the body. The through slot is necessary to allow the clamp to become smallar in diameter as it is assembled into position within an undercut in the body. Therefore, this slot serves as an assembly requirement~ The through slot also allows the clamp to close at the toothed end as the connector is mated. The partial slot at the rear end of the clamp allows it to close further at that section, which accomodates a need to achieve a high level of cable gripping.
These items are shown pictorially by Fig. 5. The assembly process is described following. All internal parts are fitted sequentially into the connector body. The rear seal is to be positioned first within its slot. Following is the clamp, which is slotted to allow it to slip through a smaller diameter to reach its desired location within an undercut. Next, the sleeve is press-fitted into the clamp as the ridge 26 causes the slotted clamp to expand and then contract after the ridge has passed through to position 66 of the clamp. The shape of the ridge and the diameters of the clamp, sleeve and body are such that it is impossible for the sleeve to disengage from the clamp. Finally, the front seal is loosely seated on the sleeve and within an undercut insida the body.
ADDITIONAL FEATURES OF THE CURR~NT INVENTION
The following notes describe several additional features which are inherent to this connector design:
The rear seal is achieved when the cable is expanded into the space occupied by the seal during the installation of the connector with a mating component~ This feature is unusual in that in almost all previous designs, the seal is designed to compress into space which is occupied by the cable.
Sealing and retention mechanisms are addressed individually with two independent internal components, a seal and a clamp. As a result, the weaknesses of either component does not compound with the weaknesses of the other component. The seal serves that function alone, and likewise the clamp serves that function alone.
Prior art desi`gns have attempted to combine these two functions with a single component. The current invention realizes that sealing is best achieved with a spongy material which is necessarily too weak to achieve a strong mechanical grip on a cable. Conversely, gripping is best achieved with a hard plastic material ~hich is often unable to seal as effectively as spongy material.
page 6 4Z3~3 While threading onto the mating component, the cable remains loose within the connector until typically the final thread turn, when the clamp mechanism comes into effect. The turning prior to the final turn is necessary to take up the slackness which is a~
fcature of the current design. Although loose prior to this stage, there is a cable retention mechanism which is inherent to the current invention which has been described previously.
Claims (6)
1 An F-type coaxial cable connector which maintains a continuous electrical and mechanical connection between said cable and a mating electronic component with a threaded interface. Said connector is able to achieve a moisture-proof seal by mechanical means during the mating of said connector to said interface.
Connector is comprised of the following:
a threaded nut body which mates with standard F-type interfaces and which contains means for creating both a moisture-proof seal and mechanical retention which exceeds the design capabilities of RG-type cable a multi-slotted clamp which is capable of retaining RG-type cable with force which exceeds the design capabilities of said cable a sleeve component which is designed to expand, RG-type cable such that moisture-proof sealing is achieved as a direct result of said expansion and which seats a secondary seal which under connector assembly will deform in a manner such that moisture-proof sealing is likewise achieved
Connector is comprised of the following:
a threaded nut body which mates with standard F-type interfaces and which contains means for creating both a moisture-proof seal and mechanical retention which exceeds the design capabilities of RG-type cable a multi-slotted clamp which is capable of retaining RG-type cable with force which exceeds the design capabilities of said cable a sleeve component which is designed to expand, RG-type cable such that moisture-proof sealing is achieved as a direct result of said expansion and which seats a secondary seal which under connector assembly will deform in a manner such that moisture-proof sealing is likewise achieved
2 The body of claim 1 comprised of three undercuts:
an undercut at the threaded portion which is designed to house a seal an undercut between the aforementioned other two undercuts which acts to retain the clamp of claim 1, and as a result the sleeve of claim 1 and clamp sub-assembly an undercut at the opposite end to the threaded portion which acts to enclose, position and retain a seal
an undercut at the threaded portion which is designed to house a seal an undercut between the aforementioned other two undercuts which acts to retain the clamp of claim 1, and as a result the sleeve of claim 1 and clamp sub-assembly an undercut at the opposite end to the threaded portion which acts to enclose, position and retain a seal
3 The sleeve of claim 1 comprising:
a bore diameter which slips over the aluminum foil layer of RG-type coaxial cable, with a stop at the end of the bore opposite to the point of entry of said cable page 7 an undercut on the external surface which acts to retain the clamp of claim 4, and which is designed to be the same diameter as a corresponding surface of said clamp
a bore diameter which slips over the aluminum foil layer of RG-type coaxial cable, with a stop at the end of the bore opposite to the point of entry of said cable page 7 an undercut on the external surface which acts to retain the clamp of claim 4, and which is designed to be the same diameter as a corresponding surface of said clamp
4 The clamp of claim 1 comprising:
a through slot such that said clamp may close to a diameter such that it can enter the second undercut described by body of claim 2 a partial slot such that enclosing of said clamp is achieved above that which is afforded by said through slot a sawtooth profile on the internal surface of said clamp which effectively grips RG-type cable when said clamp is compressed an internal surface which acts to position said clamp over the sleeve of claim 4 and which is designed to be the same diameter as a corresponding surface of said sleeve an external surface which is of a slightly lesser diameter than that of the body of claim 2 in the region between the undercut at the threaded end and its adjacent undercut
a through slot such that said clamp may close to a diameter such that it can enter the second undercut described by body of claim 2 a partial slot such that enclosing of said clamp is achieved above that which is afforded by said through slot a sawtooth profile on the internal surface of said clamp which effectively grips RG-type cable when said clamp is compressed an internal surface which acts to position said clamp over the sleeve of claim 4 and which is designed to be the same diameter as a corresponding surface of said sleeve an external surface which is of a slightly lesser diameter than that of the body of claim 2 in the region between the undercut at the threaded end and its adjacent undercut
The connector of claim 1 where none of the internal parts are fixed in relation to the body and where the sleeve and clamp so described are locked within said body in their floating state, said parts are allowed to move towards the threaded end of said body during cable installation and said parts moving in an opposite direction to the threaded end during mating of said connector with complementary F-type interface.
6 The connector of claim 1 where moisture-proof sealing is achieved at one end by the expansion of an RG-type coaxial cable, by internal mechanism during the installation of said connector to an F-type interface, into space which has been occupied by a seal, said seal positioned within an undercut on the internal surface of the body of said connector.
page 8
page 8
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2044239 CA2044239A1 (en) | 1991-06-10 | 1991-06-10 | Twin-seal "f" male coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2044239 CA2044239A1 (en) | 1991-06-10 | 1991-06-10 | Twin-seal "f" male coaxial connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2044239A1 true CA2044239A1 (en) | 1992-12-11 |
Family
ID=4147778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2044239 Abandoned CA2044239A1 (en) | 1991-06-10 | 1991-06-10 | Twin-seal "f" male coaxial connector |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2044239A1 (en) |
-
1991
- 1991-06-10 CA CA 2044239 patent/CA2044239A1/en not_active Abandoned
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| Date | Code | Title | Description |
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