1. A system for measuring and cutting, comprising:
a portable measuring unit, comprising:
means for determining first distance data;
a transmitter; and
a measuring processor in data communication with said transmitter and said means for determining first distance data, said measuring processor having programming for actuating said transmitter to transmit said first distance data;
a cutting unit, comprising:
a saw;
a receiver for receiving said first distance data transmitted from said transmitter;
means for determining second distance data;
an indicator;
a cutting processor in data communication with said receiver, said means for determining second distance data, and said indicator;
said processor having programming for actuating said indicator when said first distance data is equal to said second distance data;
wherein said measuring unit further comprises a marking apparatus, said marking apparatus comprising:
a marker cavity having an open lower end;
a pushbutton operatively coupled to a flexible member, said flexible member having one end operatively coupled to a spring for compressing said spring when said pushbutton is pressed;
a door having one end operatively coupled to said spring for movement between a closed configuration when said spring is extended and an open configuration when said spring is compressed; and
a marker operatively coupled to said pushbutton, said marker being movable between an extended configuration when said pushbutton is pressed and said door is at said open configuration and a retracted configuration when said pushbutton is released and said door is at said closed configuration.
2. The system of claim 1, wherein:
a display is in data communication with said measuring processor; and
said measuring processor has programming for actuating said display to present said first distance data.
3. The system of claim 1, wherein said means for determining first distance data includes:
a retractable tape measure having an outermost end and a length;
a variable resistance wire coupled to said tape measure and extending said length of said tape measure;
a sensor for detecting a resistance of a portion of said wire adjacent said sensor, said sensor being in data communication with said measuring processor, said portion of said wire adjacent said sensor being selectively variable; and
programming in said measuring processor for associating said resistance detected by said sensor with said first distance data.
4. The system of claim 3, wherein:
a housing contains said transmitter and said measuring processor;
said housing has front and rear sides;
said tape measure outermost end is closer to said housing front side than to said housing rear side; and
said first distance data corresponds to a distance from said tape measure outermost end to said housing rear side.
5. The system of claim 1, wherein:
said portable measuring unit includes an input device in data communication with said measuring processor to obtain saw adjustment data;
said measuring processor has programming for actuating said transmitter to transmit said saw adjustment data to said receiver;
said saw includes a saw adjustment mechanism;
said cutting processor is in data communication with said saw adjustment mechanism; and
said cutting processor has programming for actuating said saw adjustment mechanism to automatically adjust said saw in accordance with said saw adjustment data.
6. The system of claim 1, wherein said means for determining second distance data includes:
a retractable tape measure having an outermost end and a length, said outermost end having a clip for interacting with a workpiece;
a variable resistance wire coupled to said tape measure and extending said length of said tape measure;
a sensor for detecting a resistance of a portion of said wire adjacent said sensor, said sensor being in data communication with said cutting processor, said portion of said wire adjacent said sensor being selectively variable; and
programming in said cutting processor for associating said resistance detected by said sensor with said second distance data.
7. The system of claim 6, wherein:
said saw includes a saw blade; and
said second distance data corresponds to a distance from said tape measure outermost end to said saw blade.
8. The system of claim 1, wherein said marker is selected from the group consisting of a graphite marker, a chalk marker, and an ink marker.
9. The system of claim 1, wherein:
said saw includes a display for presenting at least one of said first distance data and said second distance data, said display being in data communication with said cutting processor; and
said cutting processor includes programming for actuating said display to present at least one of said first distance data and said second distance data.
10. The system of claim 1, wherein:
said means for determining first distance data includes:
a first retractable tape measure having an outermost end and a length;
a first variable resistance wire coupled to said first tape measure and extending said length of said first tape measure;
a first sensor for detecting a resistance of a portion of said first wire adjacent said first sensor, said first sensor being in data communication with said measuring processor, said portion of said first wire adjacent said first sensor being selectively variable; and
programming in said measuring processor for associating said resistance detected by said first sensor with said first distance data;
said means for determining second distance data includes:
a second retractable tape measure having an outermost end and a length, said outermost end having a clip for interacting with a workpiece;
a second variable resistance wire coupled to said second tape measure and extending said length of said second tape measure;
a second sensor for detecting a resistance of a portion of said second wire adjacent said second sensor, said second sensor being in data communication with said cutting processor, said portion of said second wire adjacent said second sensor being selectively variable; and
programming in said cutting processor for associating said resistance detected by said second sensor with said second distance data.
11. The system of claim 10, wherein:
a housing contains said transmitter and said measuring processor;
said housing has front and rear sides;
said first tape measure outermost end is closer to said housing front side than to said housing rear side;
said first distance data corresponds to a distance from said first tape measure outermost end to said housing rear side;
said saw includes a saw blade; and
said second distance data corresponds to a distance from said second tape measure outermost end to said saw blade.
12. A system for measuring and cutting, comprising:
a portable measuring unit, comprising:
a transmitter;
a measuring processor in data communication with said transmitter;
a first retractable tape measure having an outermost end and a length;
a first variable resistance wire coupled to said first tape measure and extending said length of said first tape measure;
a first sensor for detecting a resistance of a portion of said first wire adjacent said first sensor, said first sensor being in data communication with said measuring processor, said portion of said first wire adjacent said first sensor being selectively variable;
programming in said measuring processor for associating said resistance detected by said first sensor with first distance data; and
programming in said measuring processor for actuating said transmitter to transmit said first distance data;
a cutting unit, comprising:
a saw;
a receiver for receiving said first distance data transmitted from said transmitter;
a display for presenting said first distance data; and
a cutting processor in data communication with said receiver and said display for actuating said display to present said first distance data;
wherein said measuring unit further comprises a marking apparatus, said marking apparatus comprising:
a marker cavity having an open lower end;
a pushbutton operatively coupled to a flexible member, said flexible member having one end operatively coupled to a spring for compressing said spring when said pushbutton is pressed;
a door having one end operatively coupled to said spring for movement between a closed configuration when said spring is extended and an open configuration when said spring is compressed; and
a marker operatively coupled to said pushbutton, said marker being movable between an extended configuration when said pushbutton is pressed and said door is at said open configuration and a retracted configuration when said pushbutton is released and said door is at said closed configuration.
13. The system of claim 12, wherein said cutting unit further comprises:
a second retractable tape measure having an outermost end and a length, said outermost end having a clip for interacting with a workpiece;
a second variable resistance wire coupled to said second tape measure and extending said length of said second tape measure;
a second sensor for detecting a resistance of a portion of said second wire adjacent said second sensor, said second sensor being in data communication with said cutting processor, said portion of said second wire adjacent said second sensor being selectively variable;
programming in said cutting processor for associating said resistance detected by said second sensor with second distance data;
an indicator in data communication with said cutting processor; and
programming in said cutting processor for actuating said indicator when said first distance data is equal to said second distance data.
14. The system of claim 13, wherein:
a housing contains said transmitter and said measuring processor;
said housing has front and rear sides;
said first tape measure outermost end is closer to said housing front side than to said housing rear side;
said first distance data corresponds to a distance from said first tape measure outermost end to said housing rear side;
said saw includes a saw blade; and
said second distance data corresponds to a distance from said second tape measure outermost end to said saw blade.
15. The system of claim 13, wherein:
said portable measuring unit includes an input device in data communication with said measuring processor to obtain saw adjustment data;
said measuring processor has programming for actuating said transmitter to transmit said saw adjustment data to said receiver;
said saw includes a saw adjustment mechanism;
said cutting processor is in data communication with said saw adjustment mechanism; and
said cutting processor has programming for actuating said saw adjustment mechanism to automatically adjust said saw in accordance with said saw adjustment data.
16. The system of claim 12, wherein:
a housing contains said transmitter and said measuring processor;
said housing has front and rear sides;
said first tape measure outermost end is closer to said housing front side than to said housing rear side; and
said first distance data corresponds to a distance from said first tape measure outermost end to said housing rear side.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A device for use in metering a liquid reducing agent into an exhaust system for reducing pollutants in an exhaust gas, the device comprising:
a metering valve adapted for metering a liquid reducing agent;
an adapter having a first end for mounting on an exhaust tube and a second end opposite the first end; and
a connecting element connecting the metering valve and the second end of the adapter, wherein the connecting element includes at least one metal sound absorber,
wherein at least one of the metering valve and the adaptor is fluidly coupled to an exhaust tube of the exhaust system.
2. The device as defined by claim 1, wherein the metal sound absorber has at least one of the following absorber elements: a porous metal element, in particular a sintered element; a metal composite material; a metal mesh, in particular a sintered mesh andor a rolled mesh; a metal cloth, in particular a sintered cloth andor a rolled cloth.
3. The device as defined by claim 2, wherein the metal sound absorber has a layered structure, having at least one layer of the absorber element and at least one layer of a reverberant element, preferably a reverberant metal.
4. The device as defined by claim 3, wherein the layer of the absorber element is disposed on a side of the connecting element facing toward the second end of the adapter.
5. The device as defined by claim 3, wherein at least one inactive intermediate layer is inserted between the layer of the absorber element and the layer of the reverberant element.
6. The device as defined by claim 4, wherein at least one inactive intermediate layer is inserted between the layer of the absorber element and the layer of the reverberant element.
7. The device as defined by claim 1, wherein the connecting element has at least one disklike element.
8. The device as defined by claim 6, wherein the connecting element has at least one disklike element.
9. The device as defined by claim 7, wherein the disklike element has at least one groove for receiving the metering valve, and preferably the disklike element is embodied as a U-shaped element, with a U-shaped groove for engagement with a groove of the metering valve.
10. The device as defined by claim 8, wherein the disklike element has at least one groove for receiving the metering valve, and preferably the disklike element is embodied as a U-shaped element, with a U-shaped groove for engagement with a groove of the metering valve.
11. The device as defined by claim 9, wherein the disklike element further has at least one contact face for resting on the adapter.
12. The device as defined by claim 7, wherein the disklike element has a first, disklike sound absorber element and a second, reverberant element facing away from, said first disklike element disposed between said second dislike element and said second end of the adapter.
13. The device as defined by claim 9, wherein the disklike element has a first, disklike sound absorber element and a second, reverberant element facing away from, said first disklike element disposed between said second dislike element and said second end of the adapter.
14. The device as defined by claim 11, wherein the disklike element has a first, disklike sound absorber element and a second, reverberant element facing away from, said first disklike element disposed between said second dislike element and said second end of the adapter.
15. The device as defined by claim 12, wherein the disklike sound absorber element and the disklike reverberant element are connected to one another in force-locking or form-locking fashion and form the disklike element.
16. The device as defined by claim 7, wherein the connecting element further has a clamp for force-locking connection of the metering valve, the disklike element, and the adapter.
17. The device as defined by claim 9, wherein the connecting element further has a clamp for force-locking connection of the metering valve, the disklike element, and the adapter.
18. The device as defined by claim 11, wherein the connecting element further has a clamp for force-locking connection of the metering valve, the disklike element, and the adapter.
19. The device as defined by claim 12, wherein the connecting element further has a clamp for force-locking connection of the metering valve, the disklike element, and the adapter.
20. The device as defined by claim 15, wherein the connecting element further has a clamp for force-locking connection of the metering valve, the disklike element, and the adapter.