JPS55129513A - Rubber dam - Google Patents
Rubber damInfo
- Publication number
- JPS55129513A JPS55129513A JP3542279A JP3542279A JPS55129513A JP S55129513 A JPS55129513 A JP S55129513A JP 3542279 A JP3542279 A JP 3542279A JP 3542279 A JP3542279 A JP 3542279A JP S55129513 A JPS55129513 A JP S55129513A
- Authority
- JP
- Japan
- Prior art keywords
- rubber dam
- expansion part
- fluid
- pipings
- drain
- 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.)
- Pending
Links
Landscapes
- Barrages (AREA)
Abstract
PURPOSE: To provide a positive falling-down of the rubber dam by a method wherein one end of the discharging conduit for the enclosed fluid is communicated into the rubber dam and a check safety member is arranged at the lower part of the rubber dam.
CONSTITUTION: The rubber dam main body 4' is composed of an expansion part 4'a which assumes a tubular shape when enclosing therein a fluid such as air, water, etc. and a plate part 4'b integrally arranged longitudinally along one side of the expansion part, and an auxiliary fluid chamber 7 having such a diameter as substantially smaller than that of the expansion part 4'a formed at the inner wall of the expansion part 4'a in order to perform a discharging of the enclosed fluid smoothyl. In this rubber dam, at least the pipings for the discharging passage of the enclosed fluid are substantially made to be upward slope and even if the drain is generated in the pipings, no accumulation of the drain is found in the pipings and the drain is flowed into the expansion part of the rubber dam, accumulated at the bottom of the expansion part and then the fluid in the expansion part is smoothyl discharged.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3542279A JPS55129513A (en) | 1979-03-28 | 1979-03-28 | Rubber dam |
| US06/126,749 US4330224A (en) | 1979-03-20 | 1980-03-03 | Collapsible rubber dam installation |
| NLAANVRAGE8001437,A NL179225C (en) | 1979-03-20 | 1980-03-11 | FOLDABLE RUBBER DAM. |
| IT8020754A IT1194624B (en) | 1979-03-20 | 1980-03-18 | INFLATABLE RUBBER DAM IMPLANT |
| GB8009283A GB2044828B (en) | 1979-03-20 | 1980-03-19 | Collapsible rubber dam installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3542279A JPS55129513A (en) | 1979-03-28 | 1979-03-28 | Rubber dam |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6429979A Division JPS55129514A (en) | 1979-03-20 | 1979-05-24 | Rubber dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55129513A true JPS55129513A (en) | 1980-10-07 |
Family
ID=12441429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3542279A Pending JPS55129513A (en) | 1979-03-20 | 1979-03-28 | Rubber dam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55129513A (en) |
-
1979
- 1979-03-28 JP JP3542279A patent/JPS55129513A/en active Pending
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