WO2000069578A1 - Removing chewing gum with liquid gas - Google Patents

Removing chewing gum with liquid gas Download PDF

Info

Publication number
WO2000069578A1
WO2000069578A1 PCT/FR1999/001133 FR9901133W WO0069578A1 WO 2000069578 A1 WO2000069578 A1 WO 2000069578A1 FR 9901133 W FR9901133 W FR 9901133W WO 0069578 A1 WO0069578 A1 WO 0069578A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
support
chewing gum
liquid gas
gum
Prior art date
Application number
PCT/FR1999/001133
Other languages
French (fr)
Inventor
Pierre-Claude Morin
Original Assignee
Morin Pierre Claude
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 to FR9716297A priority Critical patent/FR2772649B1/en
Application filed by Morin Pierre Claude filed Critical Morin Pierre Claude
Priority to PCT/FR1999/001133 priority patent/WO2000069578A1/en
Publication of WO2000069578A1 publication Critical patent/WO2000069578A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
    • B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2220/00—Type of materials or objects being removed
    • B08B2220/02—Chewing gum

Definitions

  • the present invention relates to a method for cleaning che ing-gum (s. G.) Or substances of the same structure.
  • the proposed cleaning process consists in modifying the structure of the chewing gum 5 by cooling to very low-temperature, which shrinks it and makes it brittle. It then becomes easy to peel it from the support to which it adheres. If this support is smooth, just peel it off with a spatula or a metal scraper; the (s. g.) is then removed practically at once. If the support is rough it may be necessary to break the (s.g.) hardened by the cold by hammering it, the splinters can then be removed by brushing and vacuuming. Cooling at very low temperatures is easily obtained with a liquid gas, for example liquid nitrogen (-180 °).
  • a liquid gas for example liquid nitrogen (-180 °).
  • figl positioning of the frame (l) above the chewing gum (2) crushed on the support (3).
  • fig2 installation of the frame (l) on the support (3) around the chewing gum (2), the base of the frame (l) to i5ete previously .L g rely soft (5).
  • fig3 liquid gas ( ⁇ ) poured into the frame (1) spreads out in a thin film and freezes the water, moistening (4) the base of the frame (l) and making it waterproof.
  • 0 fig after evaporation the frame is removed and the chewing gum (2) is peeled off with a spatula, or broken with a small hammer then removed by brushing and suction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Confectionery (AREA)

Abstract

A method for removing chewing gum or similar substances such as glues, mastics, gluey residues etc. which are dried or crushed on a support using very low temperatures and liquid gas for example. The invention consists in pouring a small amount of liquid gas (6) inside a frame (1), whereby the base of said frame is slightly dampened, and which is placed on the support (3) surrounding the chewing gum. The intense cold which results from the evaporation of the liquid gas (6) modifies the structure of the chewing gum which retracts, becomes brittle and can then be easily removed by detaching it with the aid of a scraper or by breaking it using a small hammer and subsequently suctioning it after it has been brushed. The inventive method can be used on substances that are similar to chewing gum.

Description

NETTOYAGE DE CHEWING-GUMAVEC DU GAZLIQUIDE CHEWING-GUM CLEANING WITH GAZLIQUIDE
La présente invention concerne un procédé de nettoyage de che ing-gum(s . g . )ou de substances de même structure.The present invention relates to a method for cleaning che ing-gum (s. G.) Or substances of the same structure.
-Àctuelement il est très difficile voire 5 imposssible d'enlever les nombreux chewing-gum (s. g.) écrasés sur le sol, par de seuls moyens physiques, ne faisant pas appel à des produits chimiques toujours plus ou moins polluants. On constate d'ailleurs souvent sur des sols, 0 fraîchement nettoyés, la persistance de traces de (s. g.) qui donnent une désagréable impression de saleté .-Currently it is very difficult or even impossible to remove the many chewing gum (s. G.) Crushed on the ground, by physical means alone, not using chemicals always more or less polluting. We often see, on freshly cleaned floors, the persistence of traces of (s. G.) Which give an unpleasant impression of dirt.
-Le procédé de nettoyage proposé consiste à modifier la structure du chewing gum 5 par refroidissement à très basse- — température, qui le rétracte et le rend cassant .11 devient alors facile de le décoller du support auquel il adhère. Si ce support est lisse, il suffit de le décoller avec une spatule ou un grattoir métallique; le (s. g.) s'enlève alors pratiquement en une seule fois .Si le support est rugueux il peut être nécessaire de casser le(s.g.) durci par le froid en le martelant, les éclats peuvent alors être -enlevés par brossage et aspiration. Le refroidissement à très basse température s'obtient facilement avec un gaz liquide, par exemple de l'azote liquide(-180° ) .-The proposed cleaning process consists in modifying the structure of the chewing gum 5 by cooling to very low-temperature, which shrinks it and makes it brittle. It then becomes easy to peel it from the support to which it adheres. If this support is smooth, just peel it off with a spatula or a metal scraper; the (s. g.) is then removed practically at once. If the support is rough it may be necessary to break the (s.g.) hardened by the cold by hammering it, the splinters can then be removed by brushing and vacuuming. Cooling at very low temperatures is easily obtained with a liquid gas, for example liquid nitrogen (-180 °).
-L'application s'opère de la manière suivante: on pose sur la zone où se situe le(s.g.) écrasé sur son support , un petit cylindre de plastique par exemple, de l'ordre de 4 cm de diamètre et 1 à 2cm de hauteur , de façon à voir la totalité du (s. g.) dans 1 ' ouverture .11 suffit de verser le gaz liquide dans le cylindre .Le gaz liquide recouvre d'un film le fond du cylindre, quelques secondes avant de s'évaporer.-The application works as follows: we place on the area where the (sg) is crushed on its support, a small plastic cylinder for example, of the order of 4 cm in diameter and 1 to 2cm high, so that all of the (sg) can be seen in the opening. It suffices to pour the liquid gas into the cylinder. The liquid gas covers the bottom of the cylinder with a film, a few seconds before evaporating.
Le froid dû à l'evaporation du gaz liquide s'exerce sur le(s.g.) et modifie sa structure comme indiqué ci dessus. Pour que l'étanchéité soit assurée entre le cvlindre et le support, il suffit de tremper dans l'eau préalablement la base du cylindre qui sera en contact avec le sol .The cold due to the evaporation of the liquid gas is exerted on the (sg) and modifies its structure as indicated above. So that sealing is ensured between the cylinder and the support, it is enough to soak in the water beforehand the base of the cylinder which will be in contact with the ground.
En gelant sous l'action du froid, l'eau 5 se transforme en glace et le gaz liquide reste emprisonné dans le cylindre.By freezing under the action of cold, the water 5 turns into ice and the liquid gas remains trapped in the cylinder.
-Les différentes phases de cette opération sont décrites dans les figures suivantes : 10 figl : positionnement du cadre(l) au dessus du chewing-gum( 2 ) écrasé sur le support ( 3 ) . fig2:pose du cadre(l) sur le support (3) autour du chewing gum(2),la base du cadre(l) à i5ete pr alablement .L g rement mouιllee(5) . fig3:gaz liquide(β) versé dans le cadre( 1 )s ' étale en film peu épais et vient geler 1 ' eau, humectant ( 4 ) la base du cadre(l)et le rendent étanche. 0 fig : après évaporation le cadre est enlevé et le chewing-gum( 2 ) est décollé à la spatule, ou brisé avec un petit marteau puis enlevé par brossage et aspiration.-The different phases of this operation are described in the following figures: 10 figl: positioning of the frame (l) above the chewing gum (2) crushed on the support (3). fig2: installation of the frame (l) on the support (3) around the chewing gum (2), the base of the frame (l) to i5ete previously .L g rely soft (5). fig3: liquid gas (β) poured into the frame (1) spreads out in a thin film and freezes the water, moistening (4) the base of the frame (l) and making it waterproof. 0 fig: after evaporation the frame is removed and the chewing gum (2) is peeled off with a spatula, or broken with a small hammer then removed by brushing and suction.
-L'application industrielle de cette 5 nvention est relativement simple. A l'aide d'un récipient cryogénique d'un poids total .rempli d'azote liquide par exemple, de l'ordre de 10kg, équipé d'un dispositif de soutirage, et déplacable sur roulettes, on place une rondelle 0 de plastique dont la base a été préalablement mouillée ou sur sol mouillé, sur l'emplacement d'un chewim-gum écrasé. On verse un film de gaz liquide par le conduit de soutirage, dans la rondelle sur le chewim-gum puis après 5 évaporation, on enlève la rondelle, on décolle le chewim-gum ou on l'effrite avec une petite masse et on aspire les morceaux. -The industrial application of this 5 nvention is relatively simple. Using a cryogenic container with a total weight. Filled with liquid nitrogen for example, of the order of 10 kg, equipped with a racking device, and movable on wheels, a plastic washer 0 is placed the base of which has been previously wet or on wet ground, on the site of a crushed chewim-gum. We pour a film of liquid gas through the draw-off pipe, into the washer on the chewim-gum then after 5 evaporation, we remove the washer, we take off the chewim-gum or we crumble it with a small mass and we vacuum the parts.

Claims

REVENDICATION CLAIM
Le dispositif de nettoyage d'un support (3) sur lequel un chewim-gum (2) ou tout autre substance analogue est collé , est caractérisé par un cadre (1) mis sur le support avec le chewim-gum ou les substances analogues étalées au centre. A l'intérieur du cadre préalablement humidifié est versé un film de gaz liquide(6).L'étanchéité du récipiend constitué du cadre et du support est assurée par la congélation d'un liquide(5) de l'eau par exemple qui humecte la partie du cadre en contact avec le supportXe gaz à l'état liquide (6) versé dans le cadre (1) s'y répand j'usqu' au contact du cadre et assure la congélation du liquide humectant le cadre (eau)(5).La structure du chewim-gum ou des substances analogues congelées par le gaz liquide est modifiée devient cassante et il est facile de l'enlever du support . The device for cleaning a support (3) on which a chewim-gum (2) or any other similar substance is stuck, is characterized by a frame (1) placed on the support with the chewim-gum or the like substances spread out In the center. Inside the previously humidified frame is poured a film of liquid gas (6). The sealing of the recipient consisting of the frame and the support is ensured by the freezing of a liquid (5) of water for example which moistens the part of the frame in contact with the support Gas in the liquid state (6) poured into the frame (1) spreads there until contact with the frame and freezes the liquid moistening the frame (water) ( 5) .The structure of chewim-gum or similar substances frozen by liquid gas is modified becomes brittle and it is easy to remove it from the support.
PCT/FR1999/001133 1997-12-23 1999-05-12 Removing chewing gum with liquid gas WO2000069578A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9716297A FR2772649B1 (en) 1997-12-23 1997-12-23 CLEANING CHEWIN-GUM AND SIMILAR SUBSTANCES, FOLDED OR CRUSHED ON A SUPPORT, USING VERY LOW TEMPERATURES, WITH LIQUID GAS FOR EXAMPLE
PCT/FR1999/001133 WO2000069578A1 (en) 1997-12-23 1999-05-12 Removing chewing gum with liquid gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9716297A FR2772649B1 (en) 1997-12-23 1997-12-23 CLEANING CHEWIN-GUM AND SIMILAR SUBSTANCES, FOLDED OR CRUSHED ON A SUPPORT, USING VERY LOW TEMPERATURES, WITH LIQUID GAS FOR EXAMPLE
PCT/FR1999/001133 WO2000069578A1 (en) 1997-12-23 1999-05-12 Removing chewing gum with liquid gas

Publications (1)

Publication Number Publication Date
WO2000069578A1 true WO2000069578A1 (en) 2000-11-23

Family

ID=26234012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1999/001133 WO2000069578A1 (en) 1997-12-23 1999-05-12 Removing chewing gum with liquid gas

Country Status (2)

Country Link
FR (1) FR2772649B1 (en)
WO (1) WO2000069578A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2772649B1 (en) * 1997-12-23 2000-01-28 Pierre Claude Morin CLEANING CHEWIN-GUM AND SIMILAR SUBSTANCES, FOLDED OR CRUSHED ON A SUPPORT, USING VERY LOW TEMPERATURES, WITH LIQUID GAS FOR EXAMPLE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2539499A1 (en) * 1975-09-05 1977-03-17 Dieter P Kessler Removing sticky substances, e.g. chewing gum, from surfaces - by applying dry ice
DE2553944A1 (en) * 1975-12-01 1977-06-08 Linde Ag Chewing gum remover for pavements - has nozzle on wheeled frame to embrittle gum using liq. gas before scraping
SU916868A1 (en) * 1980-07-18 1982-03-30 Предприятие П/Я В-2775 Pipeline detachable connection
JPH08155410A (en) * 1994-11-30 1996-06-18 Kobayashi Eiichi Method for peeling discharged chewing gum
FR2772649A1 (en) * 1997-12-23 1999-06-25 Pierre Claude Morin Procedure for cleaning chewing gum from a surface

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2539499A1 (en) * 1975-09-05 1977-03-17 Dieter P Kessler Removing sticky substances, e.g. chewing gum, from surfaces - by applying dry ice
DE2553944A1 (en) * 1975-12-01 1977-06-08 Linde Ag Chewing gum remover for pavements - has nozzle on wheeled frame to embrittle gum using liq. gas before scraping
SU916868A1 (en) * 1980-07-18 1982-03-30 Предприятие П/Я В-2775 Pipeline detachable connection
JPH08155410A (en) * 1994-11-30 1996-06-18 Kobayashi Eiichi Method for peeling discharged chewing gum
FR2772649A1 (en) * 1997-12-23 1999-06-25 Pierre Claude Morin Procedure for cleaning chewing gum from a surface

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 198306, Derwent World Patents Index; Class Q67, AN 1983-c0024k, XP002125831 *
PATENT ABSTRACTS OF JAPAN vol. 96, no. 10 31 October 1996 (1996-10-31) *

Also Published As

Publication number Publication date
FR2772649A1 (en) 1999-06-25
FR2772649B1 (en) 2000-01-28

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