GB2257679B - Spiral escalators - Google Patents

Spiral escalators

Info

Publication number
GB2257679B
GB2257679B GB9212929A GB9212929A GB2257679B GB 2257679 B GB2257679 B GB 2257679B GB 9212929 A GB9212929 A GB 9212929A GB 9212929 A GB9212929 A GB 9212929A GB 2257679 B GB2257679 B GB 2257679B
Authority
GB
United Kingdom
Prior art keywords
escalators
spiral
spiral escalators
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 - Fee Related
Application number
GB9212929A
Other versions
GB2257679A (en
GB9212929D0 (en
Inventor
William Charles Pearson Keen
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 GB919113722A external-priority patent/GB9113722D0/en
Priority claimed from GB919118556A external-priority patent/GB9118556D0/en
Application filed by Individual filed Critical Individual
Publication of GB9212929D0 publication Critical patent/GB9212929D0/en
Publication of GB2257679A publication Critical patent/GB2257679A/en
Application granted granted Critical
Publication of GB2257679B publication Critical patent/GB2257679B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B21/00—Kinds or types of escalators or moving walkways
    • B66B21/02—Escalators
    • B66B21/06—Escalators spiral type
GB9212929A 1991-06-25 1992-06-18 Spiral escalators Expired - Fee Related GB2257679B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919113722A GB9113722D0 (en) 1991-06-25 1991-06-25 A spiral escalator
GB919118556A GB9118556D0 (en) 1991-08-29 1991-08-29 A spiral escalator

Publications (3)

Publication Number Publication Date
GB9212929D0 GB9212929D0 (en) 1992-07-29
GB2257679A GB2257679A (en) 1993-01-20
GB2257679B true GB2257679B (en) 1994-04-06

Family

ID=26299128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9212929A Expired - Fee Related GB2257679B (en) 1991-06-25 1992-06-18 Spiral escalators

Country Status (1)

Country Link
GB (1) GB2257679B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511023B1 (en) * 2011-01-20 2013-04-15 Innova Patent Gmbh HANDRAIL FOR RIDING

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354169A (en) * 1930-02-21 1931-07-21 Louis Granges Improvements in and relating to endless conveyors
GB724549A (en) * 1953-02-09 1955-02-23 Eskimo Pie Corp Apparatus for making frozen confections
GB1377498A (en) * 1971-12-01 1974-12-18 Ballenger C H Endless helical conveyor and belt
US3878931A (en) * 1971-10-18 1975-04-22 Gilbert D Luna Arcuate escalator system
US4434884A (en) * 1981-08-19 1984-03-06 Otis Elevator Company Spiral escalator
EP0103489A2 (en) * 1982-09-14 1984-03-21 Mitsubishi Denki Kabushiki Kaisha Curved escalator
US4681206A (en) * 1983-03-11 1987-07-21 Mitsubishi Denki Kabushiki Kaisha Curvilinear escalator
GB2205545A (en) * 1987-05-09 1988-12-14 Lineal Thermotech Ltd Improvements in endless helical conveyors
WO1989010890A1 (en) * 1988-05-10 1989-11-16 Khp Beteiligungsgesellschaft Mbh & Co. Kommanditge Spiral escalator
WO1991006501A1 (en) * 1989-10-24 1991-05-16 Melvin Simon & Associates, Inc. Circular escalator
US5050721A (en) * 1990-09-11 1991-09-24 Otis Elevator Company Step riser profile for curved escalator

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354169A (en) * 1930-02-21 1931-07-21 Louis Granges Improvements in and relating to endless conveyors
GB724549A (en) * 1953-02-09 1955-02-23 Eskimo Pie Corp Apparatus for making frozen confections
US3878931A (en) * 1971-10-18 1975-04-22 Gilbert D Luna Arcuate escalator system
GB1377498A (en) * 1971-12-01 1974-12-18 Ballenger C H Endless helical conveyor and belt
US4434884A (en) * 1981-08-19 1984-03-06 Otis Elevator Company Spiral escalator
EP0103489A2 (en) * 1982-09-14 1984-03-21 Mitsubishi Denki Kabushiki Kaisha Curved escalator
US4681206A (en) * 1983-03-11 1987-07-21 Mitsubishi Denki Kabushiki Kaisha Curvilinear escalator
GB2205545A (en) * 1987-05-09 1988-12-14 Lineal Thermotech Ltd Improvements in endless helical conveyors
WO1989010890A1 (en) * 1988-05-10 1989-11-16 Khp Beteiligungsgesellschaft Mbh & Co. Kommanditge Spiral escalator
WO1991006501A1 (en) * 1989-10-24 1991-05-16 Melvin Simon & Associates, Inc. Circular escalator
US5050721A (en) * 1990-09-11 1991-09-24 Otis Elevator Company Step riser profile for curved escalator

Also Published As

Publication number Publication date
GB2257679A (en) 1993-01-20
GB9212929D0 (en) 1992-07-29

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19960424

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000618