Cover with prehensile button

Details Cover with prehensile button Cover with prehensile button

1999-05-24

2001-02-27

Newhouse, Nathan J. (Department: 3727)

Receptacles

Cookware

C220S212500, C220S293000, C220S912000, C016S425000, C016S433000, C016S441000

Reexamination Certificate

active

06193096

ABSTRACT:

FIELD OF THE INVENTION
The present invention concerns a lid and a knob for holding it, such as a lid for cooking utensils.
BACKGROUND OF THE INVENTION
There already exist lids with a manipulator knob secured to the lid by a screw, some including an orifice for steam to escape.
These holding knobs have the disadvantage of increasing the overall size of the lid and making it difficult to stack them up.
Also, the screw generally screws into the center of the holding knob and the steam outlet orifice is at the periphery of the knob. It is then necessary to rotate the knob when screwing it to the lid to align the orifice in the knob with the steam vent in the lid.
SUMMARY OF THE INVENTION
The aim of the present invention is to eliminate the above constraints and to propose a lid and a knob for holding it which are very much simpler to assemble and use.
The lid to which the invention is directed includes a knob for holding it and coupling means for fixing the knob to the lid.
In accordance with the invention, the connecting means include a lug and a notch having a portion in which the lug enters the notch and a portion in which the lug is retained in the notch, the lug moving between the entry portion and the retaining portion when the lid and the knob are moved relative to each other.
The assembly can therefore be assembled or disassembled merely by relative movement of the knob and the lid. This provides a removable holding knob, which has many advantages: cleaning of the lid is simplified and space is saved in storage or transportation, in particular by stacking the lids.
The lid and the knob form a modular assembly, a single holding knob being usable with different lids, regardless of the material or shape of the lids.
In a preferred version of the invention the lid has a recessed part and the knob has a portion whose shape is substantially complementary to the recessed part and is adapted to move over the recessed part between the entry portion and the retaining portion of the notch.
The complementary shapes of the lid and the knob therefore guide the knob when it is fitted to the lid.
This facilitates entry of the lug into the notch and its retention therein.
The lug preferably moves between the entry portion and the retaining portion of the notch when the holding knob is rotated about a central axis of the knob.
This bayonet-type rotational fitting of the knob to the lid produces a fixing that, although it is easily demountable, is very reliable when the user is manipulating the lid by means of the holding knob.
In accordance with another aspect of the invention, a holding knob for lids is characterized in that it includes a lug adapted to engage in a notch on the lid.


REFERENCES:
patent: 1759771 (1930-05-01), Willi
patent: 2590395 (1952-03-01), Fry
patent: 2733052 (1956-01-01), Luther
patent: 3278074 (1966-10-01), Yamazaki
patent: 5584414 (1996-12-01), Neubeck
patent: 5771783 (1998-06-01), Uss
patent: 387708 (1989-03-01), None
patent: 4231360 (1994-03-01), None
patent: 94/04062 (1994-03-01), None

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