Process for drilling a tunnel in which to place a sensor in a cooking vessel and vessel created by said process

Patent metadata

Field	Value
Publication number	US-9737936-B2
Application number	US-201514929755-A
Country	US
Kind code	B2
Filing date	Nov 2, 2015
Priority date	Nov 3, 2014
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

Provided is a process for drilling a tunnel ( 11 ) in which to place a sensor, in particular a temperature sensor, in a cooking vessel ( 1 ) comprising a bowl ( 2 ) with a bottom ( 3 ) having a thickness (e), said process comprising a step for drilling said tunnel made in the thickness (e). The drilling step comprises a pre-drilling step using a drill bit with a diameter of D 1 , and a deep drilling step using a drill bit with a diameter of D 2 , D 1 being greater than D 2.

First claim

The invention claimed is:

1. Process for drilling a tunnel in which to place a sensor in a cooking vessel comprising a bowl with a bottom having a thickness in which a said placement tunnel is made, wherein the process comprises a pre-drilling step using a first drill bit with a diameter of D 1 to make a first portion of the placement tunnel, and a deep drilling step using a second drill bit with a diameter of D 2 to make a second portion of the placement tunnel, wherein D 1 is greater than D 2 ,
wherein a ratio between D 1 and D 2 is between 1.005 and 1.05.

2. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein D 2 is between 2 and 3 millimeters.

3. Process for drilling a placement tunnel in a cooking vessel according to claim 1 , wherein the first portion of the placement tunnel has a depth of P 1 , and wherein the second portion has a depth of P 2 , wherein a ratio between P 2 and P 1 is between 2 and 5.

4. Process for drilling a placement tunnel in a cooking vessel as described in claim 3 , wherein the depth (P 1 +P 2 ) of the placement tunnel is between 50 and 70 millimeters.

5. Process for drilling a placement tunnel in a cooking vessel as described in claim 3 , wherein the depth (P 1 +P 2 ) of the placement tunnel is 60 millimeters.

6. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein in at least one drilling step, a drill head spins a drill bit and produces axial forward movement of said drill bit on which an axial oscillation is superimposed at a given frequency.

7. Process for drilling a placement tunnel in a cooking vessel as described in claim 6 , wherein the frequency of the axial oscillation applied to the drill bit is a low frequency of a few hertz.

8. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein in the pre-drilling and deep drilling steps, the drill bits are spun at a rotation speed (V 1 ) of between 8,000 and 12,000 revolutions per minute.

9. Process for drilling a placement tunnel in a cooking vessel as described in claim 8 , wherein in the deep drilling step, the second drill bit is spun at an approach rotation speed of V 2 when it is inserted into the first portion made in the pre-drilling step, wherein V 2 is less than V 1 .

10. Process for drilling a placement tunnel in a cooking vessel as described in claim 9 , wherein a ratio of V 1 to V 2 is between 10 and 100.

11. Process for drilling a placement tunnel in a cooking vessel as described in claim 9 , wherein a ratio of V 1 to V 2 is 20.

12. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein the process further comprises a milling step prior to the drilling step.

13. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein the bottom into which the placement tunnel is drilled, is made of aluminum.

14. Cooking vessel comprising a bowl with a bottom having a thickness and a tunnel in which to place a sensor, said placement tunnel being arranged within the thickness, wherein the placement tunnel has a first portion with a diameter of D 1 , followed by a second portion with a diameter of D 2 , D 1 being greater than D 2 , and wherein the tunnel is made by the process described in claim 1 .

15. Cooking vessel as described in claim 14 , selected from one of a frying pan, saucepan, sauté pan, stockpot or pressure cooker.

16. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein a ratio between D 1 and D 2 is between 1.01 and 1.02.

17. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein D 2 is 2.5 millimeters.

18. Process for drilling a placement tunnel in a cooking vessel according to claim 1 , wherein the first portion of the placement tunnel has a depth of P 1 , and wherein the second portion has a depth of P 2 , wherein a ratio between P 2 and P 1 is between 3 and 4.5.

19. Process for drilling a placement tunnel in a cooking vessel as described in claim 1 , wherein in the pre-drilling and deep drilling steps, the drill bits are spun at a rotation speed (V 1 ) of 10,000 revolutions per minute.

Assignees

• Seb Sa

Inventors

• Linglin Benoît
• Perreal Sylvain
• Charvin Stephane

Classifications

• B23B35/00 Primary

  Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods · CPC title

• A47J27/00 Primary

  Cooking-vessels (A47J29/00 - A47J33/00 take precedence) · CPC title

• A47J36/06

  Lids or covers for cooking-vessels (specially adapted for pressure-cookers A47J27/08) · CPC title

• A47J37/10

  Frying pans, e.g. frying pans with integrated lids or basting devices · CPC title

• Y10T409/303752

  Process · CPC title