NL175938C - METHOD FOR FORMING A CONNECTION BETWEEN A HOLLOW SPORTS AND A LADDER UPRIGHT USING A FIXING RING - Google Patents
METHOD FOR FORMING A CONNECTION BETWEEN A HOLLOW SPORTS AND A LADDER UPRIGHT USING A FIXING RINGInfo
- Publication number
- NL175938C NL175938C NLAANVRAGE7711314,A NL7711314A NL175938C NL 175938 C NL175938 C NL 175938C NL 7711314 A NL7711314 A NL 7711314A NL 175938 C NL175938 C NL 175938C
- Authority
- NL
- Netherlands
- Prior art keywords
- forming
- connection
- fixing ring
- ladder upright
- hollow sports
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
- E06C7/085—Connections between rungs or treads and longitudinal members achieved by deforming the rung or the stile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/044—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods perpendicular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
- B21D39/063—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in for assembling ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
- E06C7/087—Connections between rungs or treads and longitudinal members with a connecting piece installed around the rung
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Ladders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57124966A | 1966-08-09 | 1966-08-09 | |
NL676706414A NL154438B (en) | 1966-08-09 | 1967-05-08 | PROCEDURE FOR FORMING A LADDER CONNECTION USING A BATTERY. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7711314A NL7711314A (en) | 1978-02-28 |
NL175938B NL175938B (en) | 1984-08-16 |
NL175938C true NL175938C (en) | 1985-01-16 |
Family
ID=26644190
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7711314,A NL175938C (en) | 1966-08-09 | 1977-10-14 | METHOD FOR FORMING A CONNECTION BETWEEN A HOLLOW SPORTS AND A LADDER UPRIGHT USING A FIXING RING |
NLAANVRAGE7711316,A NL173435C (en) | 1966-08-09 | 1977-10-14 | METHOD FOR FORMING A LADDER JOINT USING A CYLINDRICAL FIXING |
NLAANVRAGE7711315,A NL174284C (en) | 1966-08-09 | 1977-10-14 | CONNECTION BETWEEN A HOLLOW SPORT AND A LADDER DOUBLE-WALLED UPRIGHT. |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7711316,A NL173435C (en) | 1966-08-09 | 1977-10-14 | METHOD FOR FORMING A LADDER JOINT USING A CYLINDRICAL FIXING |
NLAANVRAGE7711315,A NL174284C (en) | 1966-08-09 | 1977-10-14 | CONNECTION BETWEEN A HOLLOW SPORT AND A LADDER DOUBLE-WALLED UPRIGHT. |
Country Status (1)
Country | Link |
---|---|
NL (3) | NL175938C (en) |
-
1977
- 1977-10-14 NL NLAANVRAGE7711314,A patent/NL175938C/en not_active IP Right Cessation
- 1977-10-14 NL NLAANVRAGE7711316,A patent/NL173435C/en not_active IP Right Cessation
- 1977-10-14 NL NLAANVRAGE7711315,A patent/NL174284C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL173435B (en) | 1983-08-16 |
NL7711316A (en) | 1978-02-28 |
NL7711315A (en) | 1978-01-31 |
NL175938B (en) | 1984-08-16 |
NL174284C (en) | 1984-05-16 |
NL174284B (en) | 1983-12-16 |
NL173435C (en) | 1984-01-16 |
NL7711314A (en) | 1978-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BC | A request for examination has been filed | ||
V4 | Lapsed because of reaching the maximum lifetime of a patent |