Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corrosion-resistant self-locking manhole cover
A corrosion-resistant self-locking manhole cover includes a cover plate adapted to rest on a manhole cover support surface of a manhole frame. An anchor on the cover plate is adapted to engage the manhole frame at a first location in a manner that resists lifting of the cover plate proximate to such location. A locking member on the cover plate is movable between a locked position and an unlocked position. In the locked position, the locking member is adapted to engage the manhole frame at a second location in a manner that resists lifting of the cover plate proximate to such location. In the unlocked position, the locking member is disengaged from the manhole frame. A quick-latch mechanism is operable without using a key or other tool to release the locking member from its unlocked position to allow the locking member to return to its locked position.
Corrosion-resistant self-locking manhole cover
A corrosion-resistant self-locking manhole cover includes a cover plate adapted to rest on a manhole cover support surface of a manhole frame. An anchor on the cover plate is adapted to engage the manhole frame at a first location in a manner that resists lifting of the cover plate proximate to such location. A locking member on the cover plate is movable between a locked position and an unlocked position. In the locked position, the locking member is adapted to engage the manhole frame at a second location in a manner that resists lifting of the cover plate proximate to such location. In the unlocked position, the locking member is disengaged from the manhole frame. A quick-latch mechanism is operable without using a key or other tool to release the locking member from its unlocked position to allow the locking member to return to its locked position.
Corrosion-resistant self-locking manhole cover
NOLLE ERIC R (Autor:in) / SULLIVAN JEFFREY R (Autor:in)
13.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
B65D
Behältnisse zur Lagerung oder zum Transport von Gegenständen oder Materialien [Container], z.B. Säcke, Beutel, Fässer, Flaschen, Dosen, Kästen, Büchsen, Schachteln, Packkörbe, Tonnen, Gläser, Flüssigkeitsbehälter, Trichtersilos, Transportbehälter
,
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
/
E02D
FOUNDATIONS
,
Gründungen
ADJUSTABLE TAMPER-RESISTANT LOCKING MECHANISM FOR MANHOLE COVER
| Europäisches Patentamt | 2023