US3874395A - Handling working pieces in liquids in dental technology - Google Patents
Handling working pieces in liquids in dental technology Download PDFInfo
- Publication number
- US3874395A US3874395A US410550A US41055073A US3874395A US 3874395 A US3874395 A US 3874395A US 410550 A US410550 A US 410550A US 41055073 A US41055073 A US 41055073A US 3874395 A US3874395 A US 3874395A
- Authority
- US
- United States
- Prior art keywords
- container
- cover means
- liquid
- workpieces
- cover
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/20—Methods or devices for soldering, casting, moulding or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
Definitions
- the workpieces for the pickling are placed by hand in the container mounted in swingable manner on the cover of the apparatus and together with the container are lowered into the pickling liquid. Thereupon the cover of the apparatus joined to the swingable container returns in guided manner to its closed position and closes the apparatus so tightly with its sealing ring during the pickling process that no vapor of the pickling fluid can escape outside.
- the user raises the cover of the apparatus high whereby in guided manner, the workpieces arranged in the swingable container are removed from the pickling liquid.
- the pickling fluid which is found in the container in the pickling process flows back through openings on the bottom side of the container in the apparatus.
- the user turns the cover of the apparatus 180 so that the bottom side of the cover is arranged below the container with the workpieces.
- the bottom side of the cover serves as a collecting vessel for residues of the pickling fluid still dropping from the container.
- the user goes with the workpieces to a water tap with a discharge basin. I-Ie swings the cover about 90 over the discharge basin with a hand motion and can now cleanse the pickled workpieces in the flowing water jet from remaining residues of pickling liquid.
- a further possibility in rinsing the workpieces is that the user of the apparatus instead of employing the flowing water jet employs a prepared vessel containing water. In this case he swings the cover of the apparatus about 180 by a hand motion after which he can likewise bring about an appropriate rinsing by alternating immersion in and raising of the container above the water bath.
- the now pickled and cleansed workpieces can be withdrawn from the container with the fingers, again without utilization of assisting apparatus such as tongs or forceps and the further working can be carried out.
- the flat top side of the cover makes possible assembly at the working place so that both hands are free.
- a further characteristic of the invention is that the pickling fluid condensing on the relatively cool bottom side of the cover is returned again into the deoxidation vessel.
- FIGURE of the drawing is a crosssectional view of an apparatus for carrying out the invention.
- a container 1 for a bath e.g., a pickling bath consisting of sulfuric acid or another pickling agent.
- the container is heated by a heater 7. Inside the bath container 1 there is situated another container 2 which contains workpieces, e.g., dental tools.
- the container 2 is swingingly connected with the cover 3 by support 4.
- the container 2 in its bottom has openings 5 through which it is guaranteed that the pickling fluid can flow around the workpieces to be treated.
- the cover is raised up whereupon simultaneously the container 2 is removed from the pickling fluid. Since the container 2 is swingably mounted on the supports 4 the: person undertaking the working process can bring the treated workpieces in the range of his sight by swinging the container 2 and thereby control whether the surface properties of the treated pieces are unobjectionable.
- Apparatus suitable for treating workpieces with a liquid such as the de-oxidizing of dental workpieces with a liquid pickling bath, said apparatus comprising a first container for containing the liquid,
- cover means operable to be disposed in closing relation to said first container and to be removed therefrom, said cover means including an interior wall having a central conical portion disposed with its apex extending toward said second container for condensing vapors from the pickling liquid, and
- cover means includes an outer cover member having a generally flat top side and an annular wall within which said interior wall is disposed.
- first container includes an upwardly and inwardly facing frustoconical surface at the upper portion thereof and said cover means includes an annular seal for engaging said surface when said cover means is disposed in closing relation with said first container.
- Apparatus suitable for treating workpieces with a liquid such as the de-oxidizing of dental workpieces with a liquid pickling bath, said apparatus comprising a first container for containing the liquid,
- said connecting means comprising a support having an annular portion connected adjacent the juncture between said annular wall and said interior wall and extending toward said second container and a pair of arm portions extending from said annular portion at diametrically opposed positions thereon and axially aligned portions and said second container.
Abstract
Work pieces are treated in pickling liquids especially in dental technology and gold and silver forging for deoxidation purposes. The workpieces are arranged in a removable container swingingly mounted on the cover of the bath apparatus. This avoids the necessity of using material handling equipment such as forceps and tongs.
Description
United States Patent 'Lea Apr. 1, 1975 HANDLING WORKING PIECES IN LIQUIDS [56] References; Cited IN DENTAL TECHNOLOGY UNITED STATES PATENTS [75] Inventor: Hans Lea, Frankfurt, Germany 1,479,236 1/1924 Heidbrink 21/100 1,884,181 /1932 Pauly 134/183 x [73] Assgnee- DFmSche P 2,572,983 10/1951 Burtwell-s 134/183 x sllber'scheldean'stalt Y 2,806,123 9/1957 Steinbeck, Jr. 134/201 x Roessler, Frankfurt/Mam, Germany 3,041,212 6/1962 B66111 134/154 x 4 3,430,553 3/1969 Di Pietro 99/355 X [22] Flled' 1973 3,444,868 5/1969 Hungerford et a1. 134/143 [21] Appl. No.: 410,550
Related US Application Data Primary Examiner-Robert L. Bleutge [62] Division or Ser. NO. 291,166, Sept. 22, 1972, Pat. Agent or Flrm cushman Darby &
[30] Foreign Application Priority Data ABSTRACT Nov. 26, 1971 Germany 2158637 Work pieces are treated in pickling liquids especially in dental technology and gold and silver forging for [5 U- C deoxidation purposes. The workpieces are arranged in 134/9 43, 134/l54 a removable container swingingly mounted on the [51] Int. Cl B08b 3/04 cover of the bath apparatus. This avoids the necessity Field of Search of using material handling equipment such as forceps 134/135, 143, 154, 183, 201; 99/355; 21/95, and tongs.
O 4 Claims, 1 Drawing Figure 3 u i 1 q 1 HANDLING WORKING'PIECES IN LIQUIDS IN DENTAL TECHNOLOGY This is a division of application Ser. No. 291,166, filed Sept. 22, 1972, now US. Pat. No. 3,793,076.
In dental technology and in gold and silver forging technology it is necessary to deoxidize oxidized workpieces of base metal containing noble metal alloys by casting, brazing or annealing. Generally, for this purpose there are used simple ceramic containers, for example porcelain casseroles, which are filled with a suitable pickling liquid. The required heating of the pickling liquid takes place over the flame of a bunsen burner or on an electric hotplate. After the pickling the workpiece must be taken out of the hot pickling liquid with tongs or forceps. In this procedure there is the danger of the formation of a galvanic cell which leads to a copper deposit on the workpiece. Remnants of such copper deposit can, for example, in noble metal working in dental technology bring about disagreeable discolorations in the mouth of the patient. A further disadvantage of this process is the escape of acid vapors injurious to health and corrosive to the iron tools.
It has now been found that the disadvantages of the known processes can be avoided by having the deoxidation take place in a closed apparatus containing the pickling liquid in which the work pieces to be pickled are arranged in a removeable container which is fastened in swinging fashion to the cover of the apparatus. This construction permits the user to completely eliminate the additional material handling equipment such as forceps, tongs and the like whose disadvantages are described above.
The workpieces for the pickling are placed by hand in the container mounted in swingable manner on the cover of the apparatus and together with the container are lowered into the pickling liquid. Thereupon the cover of the apparatus joined to the swingable container returns in guided manner to its closed position and closes the apparatus so tightly with its sealing ring during the pickling process that no vapor of the pickling fluid can escape outside.
After the end of the pickling process, the user raises the cover of the apparatus high whereby in guided manner, the workpieces arranged in the swingable container are removed from the pickling liquid. During these processes the pickling fluid which is found in the container in the pickling process flows back through openings on the bottom side of the container in the apparatus. By a hand motion the user turns the cover of the apparatus 180 so that the bottom side of the cover is arranged below the container with the workpieces. In this situation the bottom side of the cover serves as a collecting vessel for residues of the pickling fluid still dropping from the container. In this position the user goes with the workpieces to a water tap with a discharge basin. I-Ie swings the cover about 90 over the discharge basin with a hand motion and can now cleanse the pickled workpieces in the flowing water jet from remaining residues of pickling liquid.
A further possibility in rinsing the workpieces is that the user of the apparatus instead of employing the flowing water jet employs a prepared vessel containing water. In this case he swings the cover of the apparatus about 180 by a hand motion after which he can likewise bring about an appropriate rinsing by alternating immersion in and raising of the container above the water bath.
In both cases after the rinsing process for the return of the workpieces to the working place the cover of the apparatus is so turned by a hand motion that its bottom side comes to rest under the container with the workpieces. Thus, the water dropping from the container or from the workpieces is caught on the bottom side of the cover.
At the working place the now pickled and cleansed workpieces can be withdrawn from the container with the fingers, again without utilization of assisting apparatus such as tongs or forceps and the further working can be carried out. The flat top side of the cover makes possible assembly at the working place so that both hands are free.
A further characteristic of the invention is that the pickling fluid condensing on the relatively cool bottom side of the cover is returned again into the deoxidation vessel.
The single FIGURE of the drawing is a crosssectional view of an apparatus for carrying out the invention.
Referring more specifically to the drawing there is provided a container 1 for a bath, e.g., a pickling bath consisting of sulfuric acid or another pickling agent.
The container is heated by a heater 7. Inside the bath container 1 there is situated another container 2 which contains workpieces, e.g., dental tools. The container 2 is swingingly connected with the cover 3 by support 4. The container 2 in its bottom has openings 5 through which it is guaranteed that the pickling fluid can flow around the workpieces to be treated.
After the pickling the cover is raised up whereupon simultaneously the container 2 is removed from the pickling fluid. Since the container 2 is swingably mounted on the supports 4 the: person undertaking the working process can bring the treated workpieces in the range of his sight by swinging the container 2 and thereby control whether the surface properties of the treated pieces are unobjectionable.
In the pickling process in the heated pickling bath there takes place an evaporation of the liquid. It is undesired that this vapor reach the working space. For this reason it is suitable to condense this vapor on the relatively cool surface of the bottom of the cover and return it again into the bath container 1. Therefore, there is provided an additional conical inner cover 6 on whose surface a substantial part of the evaporated liquid condenses and then flows back again into the bath container 1. A supplementation of the pickling liquid is practically not necessary because the vapor developed condenses again in the apparatus and is returned into the bath container 1.
What is claimed is:
1. Apparatus suitable for treating workpieces with a liquid, such as the de-oxidizing of dental workpieces with a liquid pickling bath, said apparatus comprising a first container for containing the liquid,
a second smaller container for supporting the workpieces,
cover means operable to be disposed in closing relation to said first container and to be removed therefrom, said cover means including an interior wall having a central conical portion disposed with its apex extending toward said second container for condensing vapors from the pickling liquid, and
means for connecting said second container to said cover means for movement of said second container with said cover means in supported relation therewith and for swinging movement of said cover means with respect to said second container between an operative position wherein said cover means is disposed in closing relation with said first container and said second container is supported therebelow within the liquid contained in said first container and a drop receiving position wherein said cover means is removed from closing relation with said first container and inverted with respect to its position therein and said second container is supported thereabove.
2. Apparatus as defined in claim 1 wherein said cover means includes an outer cover member having a generally flat top side and an annular wall within which said interior wall is disposed.
3. Apparatus as defined in claim 1 wherein said first container includes an upwardly and inwardly facing frustoconical surface at the upper portion thereof and said cover means includes an annular seal for engaging said surface when said cover means is disposed in closing relation with said first container.
4. Apparatus suitable for treating workpieces with a liquid, such as the de-oxidizing of dental workpieces with a liquid pickling bath, said apparatus comprising a first container for containing the liquid,
cover means operable to be removed therefrom,
a second smaller container for supporting the workpieces, and
means for connecting said second container to said cover means for movement of said second container with said cover means in supported relation therewith and for swinging movement of said cover means with respect to said second container between an operative position wherein said cover means is disposed in closing relation with said first container and said second container is supported therebelow within the liquid contained in said first container and a drop receiving position wherein said cover means is removed from closing relation with said first container and inverted with respect to its position therein and said second container is supported thereabove, said connecting means comprising a support having an annular portion connected adjacent the juncture between said annular wall and said interior wall and extending toward said second container and a pair of arm portions extending from said annular portion at diametrically opposed positions thereon and axially aligned portions and said second container.
Claims (4)
1. Apparatus suitable for treating workpieces with a liquid, such as the de-oxidizing of dental workpieces with a liquid pickling bath, said apparatus comprising a first container for containing the liquid, a second smaller container for supporting the workpieces, cover means operable to be disposed in closing relation to said first container and to be removed therefrom, said cover means including an interior wall having a central conical portion disposed with its apex extending toward said second container for condensing vapors from the pickling liquid, and means for connecting said second container to said cover means for movement of said second container with said cover means in supported relation therewith and for swinging moVement of said cover means with respect to said second container between an operative position wherein said cover means is disposed in closing relation with said first container and said second container is supported therebelow within the liquid contained in said first container and a drop receiving position wherein said cover means is removed from closing relation with said first container and inverted with respect to its position therein and said second container is supported thereabove.
2. Apparatus as defined in claim 1 wherein said cover means includes an outer cover member having a generally flat top side and an annular wall within which said interior wall is disposed.
3. Apparatus as defined in claim 1 wherein said first container includes an upwardly and inwardly facing frustoconical surface at the upper portion thereof and said cover means includes an annular seal for engaging said surface when said cover means is disposed in closing relation with said first container.
4. Apparatus suitable for treating workpieces with a liquid, such as the de-oxidizing of dental workpieces with a liquid pickling bath, said apparatus comprising a first container for containing the liquid, cover means operable to be removed therefrom, a second smaller container for supporting the workpieces, and means for connecting said second container to said cover means for movement of said second container with said cover means in supported relation therewith and for swinging movement of said cover means with respect to said second container between an operative position wherein said cover means is disposed in closing relation with said first container and said second container is supported therebelow within the liquid contained in said first container and a drop receiving position wherein said cover means is removed from closing relation with said first container and inverted with respect to its position therein and said second container is supported thereabove, said connecting means comprising a support having an annular portion connected adjacent the juncture between said annular wall and said interior wall and extending toward said second container and a pair of arm portions extending from said annular portion at diametrically opposed positions thereon and axially aligned pivot pin means between the free ends of said arm portions and said second container.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712158637 DE2158637C3 (en) | 1971-11-26 | Device for treating workpieces in liquids, in particular in dental technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3874395A true US3874395A (en) | 1975-04-01 |
Family
ID=5826194
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00291166A Expired - Lifetime US3793076A (en) | 1971-11-26 | 1972-09-22 | Handling working pieces in liquids in dental technology |
| US410550A Expired - Lifetime US3874395A (en) | 1971-11-26 | 1973-10-29 | Handling working pieces in liquids in dental technology |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00291166A Expired - Lifetime US3793076A (en) | 1971-11-26 | 1972-09-22 | Handling working pieces in liquids in dental technology |
Country Status (14)
| Country | Link |
|---|---|
| US (2) | US3793076A (en) |
| JP (1) | JPS5627597B2 (en) |
| AT (1) | AT353401B (en) |
| AU (1) | AU467267B2 (en) |
| BE (1) | BE791832A (en) |
| BR (1) | BR7208287D0 (en) |
| CA (1) | CA963780A (en) |
| CH (1) | CH572357A5 (en) |
| ES (1) | ES407294A1 (en) |
| FR (1) | FR2155750A7 (en) |
| GB (1) | GB1396598A (en) |
| IT (1) | IT974967B (en) |
| NL (1) | NL7213060A (en) |
| SE (1) | SE379561B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6216498B1 (en) * | 1999-03-31 | 2001-04-17 | Maytag Corporation | Sealed top cover and lid for washing machine |
| US6578590B2 (en) * | 2001-03-21 | 2003-06-17 | Danny Leblond | Rotative cleaning and sanitizing device |
| US20060024213A1 (en) * | 2004-07-28 | 2006-02-02 | Dainippon Screen Mfg. Co., Ltd. | Substrate treating apparatus |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1510301A (en) * | 1974-01-03 | 1978-05-10 | Minnesota Mining & Mfg | Protection of metals or metal-containing items from atmospheric corrosion |
| US4238186A (en) * | 1978-12-04 | 1980-12-09 | Western Electric Company, Inc. | Methods and apparatus for heating articles selectively exposed to a generated vapor through a volume controllable vapor barrier |
| JPH0544710Y2 (en) * | 1986-12-26 | 1993-11-12 | ||
| US4938840A (en) * | 1989-04-19 | 1990-07-03 | Schaechter Friedrich | Uniform treatment of large quantities of small parts |
| US5075982A (en) * | 1990-09-25 | 1991-12-31 | Allied-Signal Inc. | Open top defluxer with improved solvent vapor recovery |
| CN104415944B (en) * | 2013-08-30 | 2016-05-11 | 温州智创科技有限公司 | A kind of diathermy forceps rinses wiping bearing |
| CN111940391A (en) * | 2020-09-28 | 2020-11-17 | 公爱梅 | Instrument cleaning device for children dental department |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1479236A (en) * | 1919-07-23 | 1924-01-01 | Jay A Heidbrink | Sterilizer |
| US1884181A (en) * | 1924-07-18 | 1932-10-25 | Eric Osterberg | Dish washing machine |
| US2572983A (en) * | 1945-01-13 | 1951-10-30 | Triumph Dishwashers Ltd | Impeller assembly for dishwashing machines |
| US2806123A (en) * | 1949-09-12 | 1957-09-10 | Jr Edmund A Steinbock | Sterilizer |
| US3041212A (en) * | 1958-10-27 | 1962-06-26 | Welded Products Company | Egg washing apparatus and method |
| US3430553A (en) * | 1968-02-16 | 1969-03-04 | Carmelo V Di Pietro | Deep fat fryer |
| US3444868A (en) * | 1966-09-22 | 1969-05-20 | Barnes Hind Int | Lens washing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US494191A (en) * | 1893-03-28 | Kitchen-table | ||
| US1979241A (en) * | 1933-06-14 | 1934-11-06 | Harry M Albanese | Paintbrush preserver |
| US2162846A (en) * | 1938-01-15 | 1939-06-20 | Alfred M Kirchner | Pickling |
| US3121438A (en) * | 1961-01-16 | 1964-02-18 | Union Carbide Corp | Open head container and cover therefor |
| JPS4024377Y1 (en) * | 1964-02-17 | 1965-08-19 |
-
0
- BE BE791832D patent/BE791832A/en not_active IP Right Cessation
-
1972
- 1972-09-14 IT IT69916/72A patent/IT974967B/en active
- 1972-09-22 US US00291166A patent/US3793076A/en not_active Expired - Lifetime
- 1972-09-27 NL NL7213060A patent/NL7213060A/xx unknown
- 1972-10-04 ES ES407294A patent/ES407294A1/en not_active Expired
- 1972-10-30 FR FR7238455A patent/FR2155750A7/fr not_active Expired
- 1972-11-10 SE SE7214667A patent/SE379561B/xx unknown
- 1972-11-13 AU AU48813/72A patent/AU467267B2/en not_active Expired
- 1972-11-20 JP JP11651172A patent/JPS5627597B2/ja not_active Expired
- 1972-11-23 GB GB5417572A patent/GB1396598A/en not_active Expired
- 1972-11-24 CH CH1714272A patent/CH572357A5/xx not_active IP Right Cessation
- 1972-11-24 CA CA157,449A patent/CA963780A/en not_active Expired
- 1972-11-24 AT AT1002872A patent/AT353401B/en not_active IP Right Cessation
- 1972-11-24 BR BR8287/72A patent/BR7208287D0/en unknown
-
1973
- 1973-10-29 US US410550A patent/US3874395A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1479236A (en) * | 1919-07-23 | 1924-01-01 | Jay A Heidbrink | Sterilizer |
| US1884181A (en) * | 1924-07-18 | 1932-10-25 | Eric Osterberg | Dish washing machine |
| US2572983A (en) * | 1945-01-13 | 1951-10-30 | Triumph Dishwashers Ltd | Impeller assembly for dishwashing machines |
| US2806123A (en) * | 1949-09-12 | 1957-09-10 | Jr Edmund A Steinbock | Sterilizer |
| US3041212A (en) * | 1958-10-27 | 1962-06-26 | Welded Products Company | Egg washing apparatus and method |
| US3444868A (en) * | 1966-09-22 | 1969-05-20 | Barnes Hind Int | Lens washing machine |
| US3430553A (en) * | 1968-02-16 | 1969-03-04 | Carmelo V Di Pietro | Deep fat fryer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6216498B1 (en) * | 1999-03-31 | 2001-04-17 | Maytag Corporation | Sealed top cover and lid for washing machine |
| US6578590B2 (en) * | 2001-03-21 | 2003-06-17 | Danny Leblond | Rotative cleaning and sanitizing device |
| US20060024213A1 (en) * | 2004-07-28 | 2006-02-02 | Dainippon Screen Mfg. Co., Ltd. | Substrate treating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| IT974967B (en) | 1974-07-10 |
| JPS5627597B2 (en) | 1981-06-25 |
| BE791832A (en) | 1973-03-16 |
| ATA1002872A (en) | 1979-04-15 |
| BR7208287D0 (en) | 1973-10-25 |
| ES407294A1 (en) | 1975-10-16 |
| FR2155750A7 (en) | 1973-05-18 |
| CA963780A (en) | 1975-03-04 |
| SE379561B (en) | 1975-10-13 |
| DE2158637A1 (en) | 1972-12-21 |
| AT353401B (en) | 1979-11-12 |
| CH572357A5 (en) | 1976-02-13 |
| DE2158637B2 (en) | 1977-02-17 |
| AU467267B2 (en) | 1975-11-27 |
| JPS4863594A (en) | 1973-09-04 |
| GB1396598A (en) | 1975-06-04 |
| AU4881372A (en) | 1974-05-16 |
| US3793076A (en) | 1974-02-19 |
| NL7213060A (en) | 1973-05-29 |
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