KR890000945U - 사다리 - Google Patents
사다리Info
- Publication number
- KR890000945U KR890000945U KR2019870009016U KR870009016U KR890000945U KR 890000945 U KR890000945 U KR 890000945U KR 2019870009016 U KR2019870009016 U KR 2019870009016U KR 870009016 U KR870009016 U KR 870009016U KR 890000945 U KR890000945 U KR 890000945U
- Authority
- KR
- South Korea
- Prior art keywords
- ladder
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870009016U KR900009116Y1 (ko) | 1987-06-04 | 1987-06-04 | 사다리 |
US07/159,035 US4815564A (en) | 1987-06-04 | 1988-02-19 | Folding ladder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870009016U KR900009116Y1 (ko) | 1987-06-04 | 1987-06-04 | 사다리 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890000945U true KR890000945U (ko) | 1989-03-17 |
KR900009116Y1 KR900009116Y1 (ko) | 1990-09-29 |
Family
ID=19263820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870009016U KR900009116Y1 (ko) | 1987-06-04 | 1987-06-04 | 사다리 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4815564A (ko) |
KR (1) | KR900009116Y1 (ko) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5025107A (en) * | 1988-02-09 | 1991-06-18 | Eastman Kodak Company | Process for coproduction of arylene diamine dihalides and alkyl halides |
US5163533A (en) * | 1990-11-09 | 1992-11-17 | Lin Ching Tsai | Brace fastener for a folding ladder |
US6138794A (en) * | 1997-09-16 | 2000-10-31 | Transafety Inc. | Portable self-adjusting ladder |
TW425591B (en) * | 1998-09-30 | 2001-03-11 | Samsung Electro Mech | Deflection yoke |
US20030122333A1 (en) * | 2001-02-23 | 2003-07-03 | Abraham Richard J. | Ladder transport system |
US20090101437A1 (en) * | 2001-02-23 | 2009-04-23 | Inovent, Inc. | Ladder transport system |
US20040223836A1 (en) * | 2003-05-06 | 2004-11-11 | Robertson Ronald I. | Vehicle ramp assembly |
US6991063B2 (en) * | 2003-08-07 | 2006-01-31 | Werner Co. | Stowable ladder configured for installation in an opening |
US20080196972A1 (en) * | 2007-02-16 | 2008-08-21 | Jody Bell | Integrated Multiple-Section Climbing Apparatus |
AU2010240483B8 (en) * | 2009-04-24 | 2015-07-16 | Fitzgerald, Michael Mr. | An adjustable base extender for a ladder |
US8443938B2 (en) * | 2010-11-04 | 2013-05-21 | Ardisam, Inc. | Hunting ladder stand having collapsible ladder segments |
US9027711B2 (en) * | 2011-08-31 | 2015-05-12 | Ardisam, Inc. | Self-locking bi-foldable load bearing segment |
EP2769752B1 (en) * | 2011-10-17 | 2016-09-14 | Ildefonso Aral Diaz | Gymnastics device |
US10487577B1 (en) * | 2012-12-27 | 2019-11-26 | Patriot3, Inc. | Convertible folding ladder |
US9500026B2 (en) * | 2013-10-30 | 2016-11-22 | Mattingly & Malur PC | Folding and self-erecting ladder |
US9068394B1 (en) * | 2014-10-10 | 2015-06-30 | Grover J. Geiselman, III | Space saving ladder |
US10550638B2 (en) * | 2015-11-09 | 2020-02-04 | Louisville Ladder Inc. | Stepladder adapted for use as a single ladder or an extension ladder |
EP3432764B1 (en) * | 2016-03-20 | 2021-08-11 | Hideaway Solutions LLC | Lateral folding step unit |
ES2715757T3 (es) * | 2016-06-27 | 2019-06-06 | Otis Elevator Co | Sistema de bloqueo para escalera plegable |
US10294720B2 (en) | 2017-06-22 | 2019-05-21 | The Boeing Company | Ergonomic ladder |
EP4325024A3 (en) * | 2018-12-13 | 2024-08-14 | Murphy Ladder LLC | Ladder |
USD966556S1 (en) | 2019-12-13 | 2022-10-11 | Murphy Ladder Llc | Ladder |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1783686A (en) * | 1928-03-17 | 1930-12-02 | Samuel F Williams | Folding ladder |
DE559200C (de) * | 1930-11-12 | 1932-09-16 | Louis Corneloup | Zusammenlegbare Stehleiter mit durch ein Gelenk verbundenen, aufeinanderklappbaren Holmen und mit einem Stuetzholm |
US2981364A (en) * | 1959-07-13 | 1961-04-25 | Webber Jack | Folding ladder |
DE2649430C3 (de) * | 1976-02-05 | 1980-06-04 | Kosei Kigyo Co., Ltd., Osaka (Japan) | Faltleiter |
US4463829A (en) * | 1982-02-25 | 1984-08-07 | Ariy Grin | Foldable ladder |
-
1987
- 1987-06-04 KR KR2019870009016U patent/KR900009116Y1/ko not_active IP Right Cessation
-
1988
- 1988-02-19 US US07/159,035 patent/US4815564A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4815564A (en) | 1989-03-28 |
KR900009116Y1 (ko) | 1990-09-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 19970922 Year of fee payment: 8 |
|
LAPS | Lapse due to unpaid annual fee |