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US 6,480,113 B1Granted
Water level alarm
OwnerDavid W. Espositoinventor
Life of this patent
Estimating the term…
Abstract
An alarm system comprising a housing, a float, a battery compartment, a speaker and an alarm where the housing can be connected to the side wall of any container by a suction device fixedly engaged to the housing. The float rises with the water and creates a connection by completing a circuit when making contact with two separate conductors. The float compartment may be sealed with a threaded cap which can engage threads on the bottom of the housing.
Claims18
An apparatus for monitoring a liquid level in a container comprising:
- a housing having a first end and a second end;
- an alarm fixedly engaged within said housing and electrically connected to a third contact and to a second contact;
- a power supply comprising the third contact, a fourth contact, and a battery removably and electrically engaged to said third contact and to said fourth contact;
- a speaker fixedly engaged to said housing and electrically connected to said alarm;
- a float slidingly engaged in said housing;
- a contact arm fixedly engaged to said float;
- a first contact fixedly engaged to said contact arm;
- an attachment device affixed to said housing, said attachment device operable for maintaining said apparatus in a fixed position relative to said container;
- the second end having a threaded portion for engagement of a cap;
- wherein said cap is threaded for rotatable engagement with said housing;
- wherein said cap, when fully engaged with said housing, restricts the sliding engagement of said float within said housing;
- wherein the apparatus contains exactly one first contact and one second contact;
- and
- wherein when said second contact comes in contact with said first contact, said speaker emits an audible signal.
11 more elements
An apparatus for monitoring a liquid level in a container comprising:
- a housing, cylindrical in shape and having a first end and a second end;
- a power supply comprising a third contact, a fourth contact, and a battery removably and electrically engaged to said third contact and to said fourth contact;
- an alarm fixedly engaged within said housing and electrically connected to the third contact and to a second contact;
- a speaker fixedly engaged to said housing and electrically connected to said alarm;
- a float, cylindrical in shape and disposed for coaxial sliding engagement with said housing;
- a contact arm fixedly engaged to said float;
- a first contact fixedly engaged to said contact arm;
- a suction cup fixedly engaged to said housing;
- the second end having a threaded portion for engagement of a cap;
- wherein said cap is threaded for rotatable engagement with said housing;
- wherein said cap, when fully engaged with said housing, restricts the sliding engagement of said float within said housing;
- wherein the apparatus contains exactly one first contact and one second contact;
- and
- wherein when said second contact comes in contact with said first contact, said speaker emits an audible signal.
11 more elements
An apparatus for monitoring a liquid level in a container comprising:
- a housing having a first end and a second end;
- an alarm fixedly engaged within said housing and electrically connected to a third contact and to a second contact;
- a power supply comprising the third contact, a fourth contact, and a battery removably and electrically engaged to said third contact and to said fourth contact;
- a speaker fixedly engaged to said housing and electrically connected to said alarm;
- a float slidingly engaged in said housing;
- a contact arm fixedly engaged to said float;
- a first contact fixedly engaged to said contact arm;
- a suction cup fixedly engaged to said housing;
- a cap, threaded for rotatable engagement with said second end of said housing;
- wherein the apparatus contains exactly one first contact and one second contact;
- wherein when said second contact comes in contact with said first contact, said speaker emits an audible signal;
- and
- wherein said cap, when fully engaged with said housing, restricts the sliding engagement of said float within said housing.
10 more elements
Dependencies are inferred from the claim text.