US3203044A - Coating apparatus - Google Patents

Coating apparatus Download PDF

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Publication number
US3203044A
US3203044A US208756A US20875662A US3203044A US 3203044 A US3203044 A US 3203044A US 208756 A US208756 A US 208756A US 20875662 A US20875662 A US 20875662A US 3203044 A US3203044 A US 3203044A
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US
United States
Prior art keywords
counterweight
ring
coated
opening
coating
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
Application number
US208756A
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English (en)
Inventor
Hardouin Alain Tarbe De Saint
Martin Jean
Valentin Andre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR869154A external-priority patent/FR1306649A/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3203044A publication Critical patent/US3203044A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
    • G21F7/065—Remotely manipulated machinery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/36—Embedding or analogous mounting of samples

Definitions

  • the coating resin is usually employed for fixing an electrical current supply pin to one of the faces of the sample.
  • the end of this pin is coated at the same time as the sample while it is held against the latter by a pneumatic device, for example.
  • a pneumatic device for example.
  • the present invention relates to a coating apparatus suitable more particularly for coating samples for the purpose especially of performing metallographic examinations, which is simple and easy to operate and which enables any passage of the coating material below the bottom face of the sample to be avoided in an absolutely reliable manner. It also enables an electrical pin to be fixed to the top face of the sample while maintaining a constant and very close contact between the two parts.
  • the apparatus may easily be remote-controlled by means of a telemanipulator.
  • This apparatus may moreover be used for coating any part in which it is desired to protect a plane face against any deposit of coating material. It may also serve to fix any part whatsoever to the coated piece or part.
  • the coating apparatus forming the object of the invention is characterised essentially in that it comprises a support for the part to be coated, a ring for guiding the coating material around said part, a first counterweight for applying the ring against the support and a second counterweight for applying the part against the support through the medium of a member extending through the first counterweight, two parallel columns on the frame for the sliding of the two counterweights and means for guiding or immobilising independently each of the couuterweights on the two columns.
  • each column comprises a longitudinal slot forming a recess for immobilising, in the high position, a ball guiding the movement of a counterweight and housed in said slot and in a sleeve of said counterweight.
  • the member applying the part to be coated against the support may be an electrical pin to be fixed to a sample for the purpose of a subsequent electrolytical polishing operation.
  • FIGURE 1 shows the coating apparatus according to the invention, seen half in second and half from the outside;
  • FIGURE 2 shows the same apparatus seen in section on the line a-a of FIGURE 1;
  • FIGURE 3 shows on a large scale the profile of the part of the slot forming an abutment for immobilising the counterweight in the high position.
  • the coating apparatus illus trated comprises a base 1 to which two columns 2 and 3 are fixed by means of bolts and nuts.
  • a slot 4 and 5 respectively, forming at a certain height a fork, the two arms 4a and 4b of which meet to form a seat or recess 8 between two inclined teeth 8:: and 8b (FIGURE 3) in the lower portion and two recessses or seats 9 and 10 separated by a tooth in the upper portion.
  • the forks are not at the same height on each of the columns, that of the column 3 being distinctly higher than that of the column 2.
  • a first counterweight 11 slides on said columns 2 and 3 through the medium of longitudinal ball bearings 14 located in sleeves 1243.
  • these sleeves 12 has an internal annular groove 15 in which there is housed a ball 16 engaged in one of the slots 440-41240 machined in the column 2 or, on the immobilisation of the counterweight 11 in the high position, in the seat or recess 8 between the teeth 8a, 812.
  • a second counterwight 21 is mounted above the counterweight 11 on the columns 2 and 3. It likewise comprises two sleeves 12a and 13a respectively identical to sleeves 12 and 13, but the sleeve 13a slides on the column 2 above the sleeve 12, while the sleeve 12a provided with the ball slides on the column 3 above the sleeve 13.
  • the counterweight 21 contains a bore 24 flared in its upper portion.
  • the counterweight 11 comprises in its central portion a recess 16 constituted by a bore, the upper frustoconical portion of which is flared upwardly and has a small base with a diameter smaller than that of the bore so as to form a shoulder 17.
  • the base 1 comprises between the two columns 2 and 3 a recess 25 open at one of its ends into which there is slipped a cup 26 which is held by a peripheral shoulder 27. In the centre of this cup there is placed the part to be coated a ring 28 of greater diameter and greater height than the part 36 is then placed around the latter in the cup.
  • the part 30 is shown in the form of a cylindrical sample which is to be coated for the purpose of a subsequent metallographic examination, but it should be clearly understood that this part may be of any nature and that the apparatus can be applied to the coating of any part whatsoever having at least one plane base, more particularly in the case where it is desired to protect this plane face against any deposit of coating material.
  • the counterweights 11 and 21 are locked in their high position, the counterweight 21 at the top of the columns and the counterweight 11 slightly below.
  • the balls 16 are in the recesses 8.
  • the bore 16 passes around the ring 28 and the shoulder 17 abuts against the top edge of said ring.
  • the counterweight is then resting fully on the ring, which it applies against the cup 26.
  • the counterweight 21 is lowered in the same manner, its ball 16 sliding in the slot until the moment when the rivet 23 encounters the top face of the sample 30. The counterweight is then stopped, but it is supported entirely on the sample 39, which it applies against the cup 26.
  • a funnel (not shown) is then introduced into the orifice 24 and the coating material, a resin for example, is poured by means of said funnel through the orifice 16 into the space between the ring 28 and the sample 30 so as to coat the latter.
  • the counterweights 11 and 21 are raised again.
  • the balls 16 run through the slots 4 and 5, respectively and then the slots 4a and enter the recesses before sliding into the recesses 8 to lock the counterweights in their top positions.
  • the coated part can then be removed.
  • the rivet 23 When it is desired to subject the sample subsequently to an electrolytical polishing operation, there is used as the rivet 23 an electrical pin, male at one end and female at the other and the male portion of which bears on the sample 30.
  • the coating material is preferably a suitable resin which welds the pin to the sample when the counterweight 21 is raised.
  • This pin 23 leaves the holder 22 and remains fixed to the sample, the holding of which it can facilitate while permitting the flow of the electric current. It would moreover be possible to fix in the same manner to the part to be coated any other member or part of the same kind.
  • the contact between the top face of the sample and the pin is constant and very close, since it is the pin itself which serves as intermediary between the counterweight and the sample.
  • this apparatus can easily be remote-controlled and this makes it particularly suitable for coating samples of irradiated fissile materials.
  • Coating apparatus for holding a part to be coated, comprising: a base having a fiat, horizontally disposed upper surface portion providing a support for the part to be coated; a ring for enclosing said part having the lower edge thereof seated in sealing engagement on said support and extending upwardly to a height above said support which is greater than the height of the part to be enclosed and coated; a first counterweight mounted on said base for vertical movement above said ring, said first counterweight being movable between an upper position spaced above said ring and a lower position restingon the upper edge of said ring for applying the ring against the support during a coating operation; said first counterweight having a vertically extending opening formed therethrough positioned above said ring for conducting coating material into said ring and around the part to be coated; a second counterweight mounted on said base for vertical movement and positioned above said first counterweight and said ring; a member rigid with said second counterweight and depending therefrom in vertical alignment with said opening and with said part to be coated, said member being of such a
  • Coating apparatus in which an electrical pin to be attached to the part is releasably mounted on the lower end of said member and engages said part when said second counterweight is in said lower position, the weight of said counterweight on said part being transmitted through said pin, said pin being fixed to said part by the coating material as a result of a coating operation and being released from said member at the completion of the coating operation and subsequent movement of said second counterweight to said upper position.
  • Coating apparatus for holding a part to be coated, comprising: a base having a flat, horizontally disposed, upper surface portion providing a support for the part to be coated; a ring for enclosing said part having the lower edge thereof seated in sealing engagement on said support and extending upwardly to a height above said support which is greater than the height of the part to be enclosed and coated; a pair of parallel columns rigid with said base and extending vertically upwardly therefrom; a first counterweight slidably mounted on said columns and positioned above said ring for vertical movement, said first counterweight being movable on said columns between an upper position spaced above said ring and a lower position resting on the upper edge of said ring for applying the ring against the support during a coating operation; said first counterweight having a vertically extending opening formed therethrough and positioned above said ring for conducting coating material into said ring and around the part to be coated, a second counterweight slidably mounted on said column for vertical movement and positioned above said first counterweight and said ring
  • each of said counterweights include sleeves for guiding said counterweights on said columns during vertical movement thereof, each of said sleeves housing vertically aligned ball bearings disposed between the sleeve and the corresponding column.
  • each of said columns is formed on the outer surface thereof with a vertically extending groove, and an oblique groove extending at an angle from the corresponding vertical groove, said oblique grooves including a recess for receiving therein a ball; a ball carried by and movable vertically with each of said counterweights seated in said grooves, said oblique grooves and recesses being located at the upper position of the respective counterweight, said balls being movable between the corresponding vertical groove and the respective recess upon imparting vertical movement to said counterweights, said counterweights being releasably maintained in the upper position by the respective ball when it is seated in the corresponding recess.

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  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Coating Apparatus (AREA)
US208756A 1961-07-26 1962-07-10 Coating apparatus Expired - Lifetime US3203044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR869154A FR1306649A (fr) 1961-07-26 1961-07-26 Dispositif d'enrobage

Publications (1)

Publication Number Publication Date
US3203044A true US3203044A (en) 1965-08-31

Family

ID=8760149

Family Applications (1)

Application Number Title Priority Date Filing Date
US208756A Expired - Lifetime US3203044A (en) 1961-07-26 1962-07-10 Coating apparatus

Country Status (6)

Country Link
US (1) US3203044A (en, 2012)
BE (1) BE620153A (en, 2012)
CH (1) CH386134A (en, 2012)
GB (1) GB970094A (en, 2012)
LU (1) LU42055A1 (en, 2012)
NL (1) NL281424A (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002565A1 (en) * 1980-03-11 1981-09-17 Ahl S Means for conveying a mixture of products having different density
US10279751B2 (en) * 2017-07-07 2019-05-07 Scott L. Hintz Adjustable carrier system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1935942A (en) * 1926-05-01 1933-11-21 Colt S Mfg Co Method of molding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1935942A (en) * 1926-05-01 1933-11-21 Colt S Mfg Co Method of molding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002565A1 (en) * 1980-03-11 1981-09-17 Ahl S Means for conveying a mixture of products having different density
US4457648A (en) * 1980-03-11 1984-07-03 Sven-Erik Ahl Means for conveying a mixture of products having different density
US10279751B2 (en) * 2017-07-07 2019-05-07 Scott L. Hintz Adjustable carrier system

Also Published As

Publication number Publication date
NL281424A (en, 2012)
GB970094A (en) 1964-09-16
LU42055A1 (en, 2012) 1962-09-13
BE620153A (en, 2012)
CH386134A (fr) 1964-12-31

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