Fuel and propellant composition for combustion tools
US-2016244684-A1 · Aug 25, 2016 · US
Work apparatus for setting fastening elements
US9664387B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9664387-B2 |
| Application number | US-201313861520-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2013 |
| Priority date | Apr 25, 2012 |
| Publication date | May 30, 2017 |
| Grant date | May 30, 2017 |
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Abstract
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The invention relates to a work apparatus for setting fastening elements in a substrate, with a fuel container and with a dosing device, through which the fuel is fed from the fuel container into a combustion chamber in which a flammable mixture is ignited, for setting a fastening element, and with a temperature sensor. In order to prevent undesired malfunctioning in the operation of the work apparatus or to reduce the incidence of such malfunctioning, the work apparatus comprises a container temperature sensor and a dosing temperature sensor.
First claim
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The invention claimed is: 1. A method for operating a work apparatus for setting fastening elements in a substrate, the work apparatus comprising a fuel container and a dosing device, through which the fuel is fed from the fuel container into a combustion space in which a flammable mixture is ignited, for setting a fastening element into the substrate, the work apparatus also comprising a container temperature sensor, and a dosing temperature sensor, wherein the container temperature sensor is arranged on or in the fuel container and the dosing temperature sensor is arranged on or in the dosing device, and the container temperature sensor and the dosing temperature sensor are connected for control purposes to a measurement value acquisition unit, the method comprising determining a temperature difference from data detected by the container temperature sensor and by the dosing temperature sensor to detect and/or prevent critical operating states, comparing the temperature difference to a maximum admissible limit temperature difference and generating a signal as soon as the maximum admissible limit temperature difference has been exceeded. 2. The method according to claim 1 , comprising generating the signal in the form of a visual, haptic and/or acoustic signal to a user of the work apparatus. 3. The method according to claim 1 , comprising using the signal inside the apparatus to reduce the detected temperature difference. 4. The method according to claim 3 , comprising switching on an apparatus-internal aerator to reduce the detected temperature difference. 5. The method according to claim 2 , comprising using the signal inside the apparatus to reduce the detected temperature difference.
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- What does patent US9664387B2 cover?
- The invention relates to a work apparatus for setting fastening elements in a substrate, with a fuel container and with a dosing device, through which the fuel is fed from the fuel container into a combustion chamber in which a flammable mixture is ignited, for setting a fastening element, and with a temperature sensor. In order to prevent undesired malfunctioning in the operation of the work a…
- Who is the assignee on this patent?
- Hilti Ag
- What technology area does this patent fall under?
- Primary CPC classification B25C1/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 30 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).