Locks – Operating mechanism – Using a powered device
Reexamination Certificate
2000-04-04
2001-04-17
Gall, Lloyd A. (Department: 3627)
Locks
Operating mechanism
Using a powered device
C070S257000, C070S280000, C292S142000, C292S144000
Reexamination Certificate
active
06216502
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a keyless locking system and more particularly pertains to conveniently locking and unlocking a deadbolt for a door from a remote location without modifying the existing deadbolt.
2. Description of the Prior Art
The use of door locking systems of known designs and configurations is known in the prior art. More specifically, door locking systems of known designs and configurations previously devised and utilized for the purpose of locking and unlocking deadbolts through known methods and apparatuses are known to consist basically of familiar, expected, and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which has been developed for the fulfillment of countless objectives and requirements.
By way of example, U.S. Pat. No. 3,829,138 to Morita discloses a remotely controlled latch system for fire doors and the like. U.S. Pat. No. 4,593,543 to Stefanek discloses a security lock. U.S. Pat. No. 5,896,769 to Elpern et al. discloses a electrically operated actuator. U.S. Pat. No. 5,979,199 to Elpern et al. discloses an electrically operated actuator. Lastly, U.S. Pat. No. 5,987,818 to Dabideen discloses a remotely controlled door locking and opening system.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not describe a keyless locking system that allows conveniently locking and unlocking a deadbolt for a door from a remote location without modifying the existing deadbolt.
In this respect, the keyless locking system according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of conveniently locking and unlocking a deadbolt for a door from a remote location without modifying the existing deadbolt.
Therefore, it can be appreciated that there exists a continuing need for a new and improved keyless locking system which can be used for conveniently locking and unlocking a deadbolt for a door from a remote location without modifying the existing deadbolt. In this regard, the present invention substantially fulfills this need.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of door locking systems of known designs and configurations now present in the prior art, the present invention provides an improved keyless locking system. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved keyless locking system and method which has all the advantages of the prior art and none of the disadvantages.
To attain this, the present invention essentially comprises a keyless locking system for conveniently locking and unlocking a deadbolt of a door. First provided is a housing. The housing is formed in a generally rectilinear configuration. The housing has a planar plate constituting a front wall. The planar plate has an upper edge and a lower edge. The planar plate also has parallel side edges between the upper and lower edges. The planar plate also has peripheral edge walls extending inwardly from the upper edge, lower edge and side edges to form an open housing between the edges. Next provided is a rotatable assembly. The rotatable assembly is secured to the front wall adjacent to the lower edge. The rotatable assembly includes a visible rotator extending inwardly from the front wall. The rotator is adapted to be manually turned or turned from a remote location. The assembly has a cylindrical shaft extending through the front wall. The assembly also has a C-shaped channel member extending interiorly from the rotator. The channel member includes a vertical plate positionable external of the deadbolt to be turned. The channel member also has inwardly extending sidewalls to encompass and contact the sides of the deadbolt to cause the turning of the deadbolt. The channel member is adapted to be rotated upon the rotation of the shaft. Next provided is a gearing assembly. The gearing assembly includes a large gear. The large gear has peripheral teeth coaxially coupled to the channel member and the shaft for rotation. The gearing assembly also has a smaller gear. The smaller gear has peripheral teeth in mating contact with the teeth of the larger gear for mutual rotation between the larger and smaller gears. The gearing assembly also includes a worm gear. The worm gear has spiral teeth in contact with the smaller gear whereby rotation of the worm gear about an axis perpendicular to the axis of the large gear and small gear will rotate the smaller gear and then the larger gear to rotate the channel member and deadbolt to lock and unlock the door. Next provided is a motor. The motor is located within the housing. Also provided is a battery associated with the motor to drive the worm gear. Next provided is an electronic assembly. The electronic assembly functions to effect the driving of the motor and worm gear in a first direction and then a second direction. The electronic assembly includes an associated switch under the control of an operator for initiating the driving of the electronic assembly and motor in either one direction or the other as a function of the nature of the deadbolt to be turned. Next provided is a control member. The control member is adapted to be held by the hand of the user. The control member includes a button adapted to be pressed to drive the motor a predetermined number of revolutions to rotate the worm gear, small gear, large gear, channel member and deadbolt for either locking or unlocking the door. Lastly provided is an adhesive. The adhesive is secured to the housing interiorly of the edge walls to secure the housing onto a door with the channel member over the deadbolt of the door.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims attached.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of descriptions and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
It is therefore an object of the present invention to provide a new and improved keyless locking system which has all of the advantages of the prior art door locking systems of known designs and configurations and none of the disadvantages.
It is another object of the present invention to provide a new and improved keyless locking system which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new and improved keyless locking system which is of durable and reliable constructions.
An even further object of the present invention is to provide a new and improved keyless locking system which is susceptible of a low cost of manufacture with regard to both materials and
Cannella Robert
Cannella Thomas
LandOfFree
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