Other

Winfield Locks, Inc.

James W Raymond

James Allen Millett

James A Millet

A ground supported boat lift including a frame which is pivotally movable about two shorter spaced apart parallel legs connected at each rear corner of the frame from an upright position to a generally horizontal position of the frame. A boat cradle is connected and extends perpendicular between the legs and is raised from being in close proximity to the ground to being above the ground by the legs as the frame is pivoted into a horizontal position. Optional removable wheels and a trailer tongue convert the device to a more conventional boat trailer.

Boat lift

A lock assembly is provided which contains a spring-loaded dead bolt and a spring-loaded plunger intercoupled to one another. The assembly is such that when the door is closed, the plunger is pushed in by the striker plate on the door frame, and this releases the spring-biased dead bolt and causes the dead bolt to be fully extended into the cavity in the striker plate. When that occurs, the linkage coupling the assembly to the doorknob moves to a position in which one of its members serves as a stop to prevent the dead bolt from being forced back to a retracted position until the doorknob is turned.

Spring-loaded dead bolt assembly

An electronic key and lock system is provided which is particularly suited for use in hotels and motels to control access to the rooms of the establishment. The system includes a battery energized microcomputer controlled unit in each door which is capable of activating an electromechanical deadbolt mechanism when a magnetically encoded card bearing a selected code is inserted into a slot in that particular door, and which includes a non-contact proximity magnetic sensor for the cards. The microcomputer controlled unit has five levels of response, namely, guests, maid, master, grand master and emergency. In addition to responding to the selected code, the microcomputer is programmed also to respond to cards bearing a new code when a new guest inserts his card into the slot in the door, and of adjusting the unit to respond to the new code and not to the previous code. The microcomputer is capable not only of reading a magnetically encoded card inserted into the corresponding slot and of releasing the deadbolt mechanism of the door when the card bears the proper code, but it is also capable of recording the time and identity of all hotel personnel gaining access to the room, and of responding to a particular guest card only for a particular time period, corresponding to the duration of the guest's intended occupancy of the room.

Electronic lock and key system for hotels and the like

A resettable single-barrel single-plug cylindrical two section lock assembly is provided wherever master keying is required. The lock of the invention is intended to be operated and reset by three different keys. One key (#1 key) is used to turn the lock to a position in which it may be reset by either of the other two keys. One of the other two keys (#2 key) operates a first section of the dual lock; and the other of the other of the two keys (#3 key) operates a second section of the lock which is independent of the first section. Either section may be reset by inserting the existing #2 or #3 key into the lock once the lock has been turned by the (#1) key to a predetermined position, and then turning the lock to the reset position, and after the existing key has been withdrawn, turning the lock back to its normal operating position by the new key, either the #2 or #3 keys, depending upon which section of the lock is being re-keyed.

Resettable lock assembly

A keying process is provided for use in hotels or motels in conjunction with resettable room locks, so that an immediate indication is provided by the key itself as to whether it is the current key for the lock of a particular room. The key is provided with a serial number which identifies the key so that it may be grouped with its duplicates. The key is also provided with a removable plug which identifies the particular room whose lock has been set currently to accept the key. Two, or more, differently colored plugs are provided for each room, and each time the lock of a particular room is reset to accept a new key, the new key is provided with a room-identifying plug of a different color from the previous key. The key slots at the hotel or motel desk may be provided with correspondingly colored lights, or other color indicators, and the color indicator corresponding to the color of the current plug is activated for each slot. Any keys turned in to the desk which do not have a plug with the current color, instead of being returned to the slot, are sent to the maintenance center where the plugs are removed, and the keys and plugs are stored separately for future use.

Keying process for resettable lock

A double-barrel double-plug cylindrical lock is provided for hotels, and the like, where changes of occupancy frequently occurs. The lock cylinder is constructed to be of approximately the same size and shape as the prior art lock cylinders, so that the lock of the invention may readily be mounted into existing mortise door hardware to replace existing cylindrical locks. One plug of the lock is intended to be operated by the guests' key; and the other plug is intended to be operated by the maid's key, by an emergency key and by a program key. The guest key may be used to turn the guest plug to a resettable position in which a new guest key may be inserted which sets the guest plug to accept the new key. However, the lock is constructed so that the guest plug cannot be turned to its resettable position unless the emergency key or program key is first inserted in the other plug to turn the other plug to a particular angular position in which the guest plug is able to be turned to its resettable position. Also, the other plug may be turned to a resettable position by the program key, in which the other plug can be reset to accept a new maid's key and a new emergency key. Neither the maid's key nor the emergency key can be withdrawn when the second plug is turned to its resettable position, but the program key can be withdrawn.

Resettable lock assembly for hotels, and the like

An improved lock assembly of the wafer tumbler type is provided which includes a plurality of wafer-type tumblers mounted in a cylindrical plug or carrier at spaced positions along the axis of the carrier. The tumblers are slidable radially in the carrier to project beyond the carrier into restricted annular pockets in the inner surface of the housing, so as to hold the lock in a locked condition. Only when the proper key is inserted into the plug are all the tumblers drawn within the confines of the plug by the key, allowing the key to turn the plug and to operate the latch or bolt controlled by the lock. The lock of the invention is constructed so that each tumbler is of a two-piece construction to include a key-follower member which may be engaged with the corresponding tumbler at a selected position along its length, with the key followers assuming different positions with respect to the corresponding tumblers, so that only when a particular key is inserted into the plug, will all the tumblers be drawn within the confines of the plug, allowing the plug to be turned to the unlocking position. The key followers are held in engagement with the respective tumblers during normal operation of the lock. However, the plug can be turned to a re-setting position by the particular key, at which position the followers are released. Then, a new key may be inserted into the lock to cause the key followers to assume different relative positions with respect to the various tumblers in conformity with the new key. Thereafter, when the plug is turned back to the normal operating position, the key followers are locked into engagement with the tumblers at the new position, and the lock is then conditioned for operation with the new key, instead of the former key. Means is provided to prevent the plug from being turned back from its reset position to its normal operating position unless the key is fully inserted into the lock, to prevent partial settings of the key followers. The lock also includes a pick bar which engages the tumblers whenever the plug is turned from a reference position to prevent movement of the tumblers at any angular position of the plug except the reference position, so that the lock is rendered virtually pick-proof.

Lock assembly

A cylindrical lock assembly is provided which is approximately the same size as present-day cylindrical 'Mortise' locks, and which can replace present-day locks in the doors of hotels, motels, or other establishments, merely by removing the existing lock cylinders and replacing them by the lock cylinders of the invention. The lock assembly of the invention has a number of internal logic ring members which are mounted tandem to one another in coaxial relationship with the central axis of the lock, and which are replaceable to change the key pattern to which the lock will respond. The lock also includes a plurality of spring-biased tumblers, which are moved longitudinally to mating positions with respect to the various logic ring members when the proper keys are inserted in the lock. Each lock will respond, for example, to four different keys, namely, a guest key which is usually different for each lock in the establishment, a maid's key which fits a predetermined number of locks in the establishment, and an emergency key which not only fits all the locks in the establishment, but which can operate all the locks, even when a door is bolted by the usual dead bolt mechanism. In the embodiment to be described, the logic ring members can be changed only by a release operation which can be carried out only by the emergency key.

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Newport Beach, CA, United States of America

James W Raymond