referring now to the drawings , there is shown the first preferred embodiment of the present invention . fig1 shows an isometric view of the present invention showing a transmitting mechanism 14 fixed to the outside surface of a door 11 of a curbside mailbox 10 by adhesive double sided tape 37 or some other conventional means . visual indicators 23 on the top of the transmitting mechanism 14 upper enclosure 24 , identifies the positioning of the transmitting mechanism 14 on the door 11 . a curbside mailbox 10 typically include a door 11 that extents vertically upward from a hinge 12 in a horizontal plane at the near bottom of the door 11 when in a closed position . as the door 11 pivots open outwardly from its closed position , the transmitting mechanism senses the opening of the door 11 when it passes a predetermined angle from its closed position , and sends a signal 16 to a remote receiver 17 which sounds an audible alarm 18 and displays a visual light 19 . the receiver 17 and its electronic circuitry are of conventional construction well known to those skilled in the art . both the audible alarm 18 and the visual light 19 signals that the door 11 has been opened , which indicates to the home resident that mail may be present in the mailbox 10 . the visual alarm 19 remains on until the resident resets the receiver 17 by pressing reset button 20 . if the mailbox door 11 is opened when the visual light 19 is already on , the audible alarm 18 will again briefly sound . the visual light 19 will remain on until the reset button 20 is reset . the receiver can be positioned anywhere within the home or business . next , referring to fig2 and 3 , shown is the embodiment of the transmitting mechanism 14 of the present invention described in greater detail . referring to fig2 is the sectional view of the component assembly of the transmitting mechanism 14 . fig3 shows an exploded view of fig2 of the assembly , wherein tilt switch holder 27 includes a bore in which tilt switch 26 is inserted . the tilt switch 26 holder 27 , having a stem 28 , having a flat locating surface 29 , or some other conventional means for positioning with knob 34 , is inserted through water proofing o - ring 32 and through the circular bore 33 of the transmitter mechanism 14 upper enclosure 24 and into the bore 35 of knob 34 . the stem 28 of the tilt switch holder 27 is fastened to knob 34 by means of screw 36 or some other conventional means of securement . tilt switch 26 is shown connected to transmitter circuitry board 31 by means of wire circuit 30 . transmitter circuitry board 31 is of conventional construction well known to those skilled in the art . upper enclosure 24 of transmitter mechanism 14 is assembled to lower enclosure 25 by conventional means . double sided adhesive tape 37 is adhered to the bottom surface of lower enclosure 25 for mounting to mailbox door 11 . end view 38 of transmitting mechanism 14 shows visual indicators 39 , either of numerical or other conventional identity type markings . knob 34 is shown with an indicator pointer 22 , knob 14 being adjustable for movement in either right or left direction to select predetermined angle settings of tilt switch 26 , for engagement when mailbox door 11 is pivoted to an angle required to close the tilt switch 26 . when tilt switch 26 is closed , a circuit 30 is completed with transmitter circuit board 31 , thus a signal 16 is send to the receiver 17 . a predetermined angle of the tilt switch 26 can be positioned by knob 34 , whereby the transmitter mechanism 14 sends a signal 16 when the door 11 on a curb side mailbox 10 , having hinges at the near bottom is pivoted open by any degree between near zero and near 90 degrees , preferably at a minimal of near 15 degrees such that mail can not be deposited without the transmitter mechanism 14 sending a signal 16 to receiver 17 . next referring to fig4 , is shown an isometric view of a second preferred embodiment of the present invention showing a transmitting mechanism 14 fixed to the outside surface of a door 11 of a wall mounted mailbox 10 by adhesive double sided tape 37 or some other conventional means . visual indicators 23 on the top of the transmitting mechanism 14 upper enclosure 24 , identifies the positioning of the transmitting mechanism 14 on the door 11 . wall mounted type mailbox 10 typically includes a hinge 12 in a horizontal plane at the near top of the door 11 . a closed door 11 position of a wall mounted mailbox 10 can vary from a near zero degrees in a horizontal plane to a downward plane having an angle of near 65 degrees downward from the horizontal hinge 12 . as the door 11 pivots open upward from its closed position , the transmitting mechanism 14 senses the opening of the mailbox door 11 when it passes a predetermined angle from the door closed position , and sends a signal 16 to a remote receiver 17 which sounds an audible alarm 18 and displays a visual light 19 . the receiver 17 and its electronic circuitry are of conventional construction well known to those skilled in the art . both the audible alarm 18 and the visual light 19 signals that the door 11 has been opened , which indicates that mail may be present in the mailbox 10 . the visual alarm 19 remains on until the resident resets the receiver 17 by pressing reset button 20 . if the mailbox door 11 is opened when the visual light 19 is already on , the audible alarm 18 will again briefly sound . the visual light 19 will remain on until the reset button 20 is reset . the receiver can be positioned anywhere within the home or business . although the tilt switch 26 can be adjusted to emit a signal 16 at any of the mailbox 10 open door angles , it is preferred that the transmitting mechanism 14 emits the signal 16 when the door 11 opens a minimal degree of near 15 to avoid mail deposits made without a signal 16 sent to the receiver 17 . next referring to fig5 , shown an isometric view of a third preferred embodiment of the present invention showing a transmitting mechanism 14 fixed to the outside surface of a door 11 of a slot type mailbox 10 by adhesive double sided tape 37 or some other conventional means . visual indicators 23 on the top of the transmitting mechanism 14 upper enclosure 24 , identifies the positioning of the transmitting mechanism 14 on the door 11 . slot type mailboxes typically includes a door that extends vertically downward from a horizontal hinge near the top of the door 10 when in the closed vertical position . as the door 11 pivots open from its closed position , the transmitting mechanism 14 senses the opening of the door 11 when it passes a predetermined angle from the door closed position , and sends a signal 16 to a remote receiver 17 which sounds an audible alarm 18 and displays a visual light 19 . the receiver 17 and its electronic circuitry are of conventional construction well known to those skilled in the art . both the audible alarm 18 and the visual light 19 signals that the door 11 has been opened , which indicates that mail may be present in the mailbox 10 . the visual alarm 19 remains on until the resident resets the receiver 17 by pressing reset button 20 . if the mailbox door 11 is opened when the visual light 19 is already on , the audible alarm 18 will again briefly sound . the visual light 19 will remain on until the reset button 20 is reset . the receiver can be positioned anywhere within the home or business . although the tilt switch 26 can be adjusted to emit a signal 16 at any of the mailbox 10 open door angles , it is preferred that the transmitting mechanism 14 emits the signal 16 when the door 11 opens a minimal degree of near 15 to avoid mail deposits made without a signal 16 sent to the receiver 17 . next , referring to fig6 and 7 is shown transmitting mechanism 14 mounted with double sided tape 37 or some other convention means to the inside surface of door 11 of a curb side type mailbox 10 . curb side type mailbox 10 typically includes a door that extends vertically upward from a horizontal hinge near the bottom of the door 11 when in the closed position . when the door 11 is closed , as shown in fig6 , the tilt switch 26 is in an open position as seen in sectional view 40 , the knob 34 having its pointer 22 set at near numeral 4 on the visual indicator 39 . as the door 11 opens to the position shown in fig7 , the door 11 pivots outwardly about hinge 12 located near the bottom of the door 11 . as the door 11 pivots opens outwardly , the tilt switch 26 ball 26 a rolls under the force of gravity to the other end of the tilt switch 26 when the door 11 has pivoted to near 15 degrees from its closed vertical position . when the tilt switch 26 ball 26 a has rolled to the other end of the tilt switch 26 , the circuit is completed through wire circuit 30 which causes the transmitter mechanism 14 to transmit signal 16 to the receiver 17 , thus activating the visual light 19 and sound alert 18 , to notify the recipient that the mailbox door 11 has been opened . next referring to fig8 and 9 is shown transmitting mechanism 14 mounted with double sided tape 37 or some other convention means to the inside surface of door 11 of a curb side type mailbox 10 . curb side type mailbox 10 typically includes a door that extends vertically upward from a horizontal hinge near the bottom of the door 11 when in the closed position . when the door 11 is closed , as shown in fig6 , the tilt switch 26 is in an open position as seen in sectional view 40 . the knob 34 having its pointer 22 set at near numeral 3 on the visual indicator 39 . as the door 11 pivots opens outwardly about a horizontal hinge at the near bottom of the door , the tilt switch 26 ball 26 a rolls under the force of gravity to the other end of the tilt switch 26 when the door 11 has pivoted to near 90 degrees from its closed vertical position . when the tilt switch 26 ball 26 a rolls to the other end of the tilt switch 26 , the circuit is completed through wire circuit 30 which causes the transmitter mechanism 14 to transmit signal 16 to the receiver 17 , thus activating the visual light 19 and sound alert 18 , to notify the recipient that the mailbox door 11 has been opened . changing the knob pointer 22 on the visual indicator 39 to 3 delays sending signal 16 until the mailbox door 11 is opened to a wider openings as shown in fig9 . the pointer 22 on knob 34 can be set anywhere on the visual indicator 39 to allow the tilt switch 26 engagement when the door 11 is opened anywhere from near zero degrees to near 90 degrees . next , referring to fig1 and 11 is shown transmitting mechanism 14 mounted with double sided tape 37 or some other convention means to the outside surface of door 11 of a curb side type mailbox 10 . curb side type mailbox 10 typically includes a door that extends vertically upward from a horizontal hinge near the bottom of the door 11 when in the closed position . when the door 11 is closed , as shown in fig1 , the tilt switch 26 is in an open position as seen in sectional view 40 . the knob 34 having its pointer 22 set at near numeral 1 on the visual indicator 39 . as the door 11 opens to the position shown in fig1 , the door 11 is shown pivoted outwardly about a hinge mechanism 12 located near the bottom of the door 11 . as the door 11 pivots open outwardly , the tilt switch 26 ball 26 a rolls under the force of gravity to the other end of the tilt switch 26 when the door 11 has pivoted from near 15 degrees from its closed vertical position . when the tilt switch 26 ball 26 a rolls to the other end of tilt switch 26 , the circuit is completed through wire circuit 30 which causes the transmitter mechanism 14 to transmit signal 16 to the receiver 17 , thus activating the visual light 19 and sound alert 18 , to notify the recipient that the mailbox door 11 has been opened . thus , by mounting the transmitting mechanism 14 on the outside of the mailbox 10 door 11 and setting the knob 34 pointer 22 to visual indicator 39 , the transmitting mechanism 14 will send a signal when the mailbox 10 door 11 is opened near a preferred 15 degrees . next , referring to fig1 and 13 is shown transmitting mechanism 14 mounted with double sided tape 37 or some other convention means to the outside surface of door 11 of a wall mounted type mailbox 10 shown with a door 11 in a closed position near minus 65 degrees from the horizontal . wall mounted type mailbox 10 typically includes a hinge 12 in a horizontal plane at the near top of the mailbox 10 door 11 . closed door 11 positions of a wall mounted mailbox 10 can vary from a near zero degrees in a horizontal plane to a downward angle of near 65 degrees from the horizontal hinge 12 . when the door 11 is closed , as shown in fig1 , the tilt switch 26 is in an open position as seen in sectional view 40 , the knob 34 having its pointer 22 set at near numeral 3 on the visual indicator 39 . as the door 11 opens as shown in fig1 , the door 11 pivots upwardly about a hinge mechanism 12 located near the top of the door 11 . as the door 11 pivots open upwardly , the tilt switch 26 ball 26 a rolls under the force of gravity to the other end of the tilt switch 26 when the door 11 has pivoted from near 15 degrees from its closed vertical position . when the tilt switch 26 ball 26 a rolls to the other end of the tilt switch 26 , the circuit is completed through wire circuit 30 which causes the transmitter mechanism 14 to transmit signal 16 to the receiver 17 , thus activating the visual light 19 and sound alert 18 , to notify the recipient that the mailbox door 11 has been opened . next , referring to fig1 and 15 is shown transmitting mechanism 14 mounted with double sided tape 37 or some other convention means to the outside surface of door 11 of a wall mounted type mailbox 10 shown with a door 11 in a closed position in a horizontal plane near zero degrees . wall mounted type mailbox 10 typically includes a hinge 12 in a horizontal plane at the near top of the door 11 . a closed door 11 position of a wall mounted mailbox 10 can vary from a near zero degrees in a horizontal plane to a downward angle of near 65 degrees from the horizontal hinge 12 . when the door 11 is closed , as shown in fig1 , the tilt switch 26 is in an open position as seen in sectional view 40 . the knob 34 having its pointer 22 set at near numeral 2 on the visual indicator 39 . as the door 11 opens upward to the position shown in fig1 , the door 11 pivots about a horizontal hinge mechanism 12 located near the top of the door 11 . as the door 11 pivots upward from a closed position , the tilt switch 26 ball 26 a rolls under the force of gravity to the other end of the tilt switch 26 when the door 11 has pivoted from near 15 degrees from its closed position . when the tilt switch 26 ball 26 a rolls to the other end of the tilt switch 26 , the circuit is completed through wire circuit 30 which causes the transmitter mechanism 14 to transmit signal 16 to the receiver 17 , thus activating the visual light 19 and sound alert 18 , to notify the recipient that the mailbox door 11 has been opened . the transmitter mechanism can be adjusted by the knob 34 to position the angle of the tilt switch 26 for engagement on any wall mounted mailbox door 11 when the door 11 is opened from any angle of near zero horizontally to near minus 65 degrees . next , referring to fig1 and 17 is shown transmitting mechanism 14 mounted with double sided tape 37 or some other convention means to the outside surface of door 11 of a slot type mailbox 10 . slot type mailboxes typically includes a door in a closed position that extends vertically downward from a horizontal hinge near the top of the door 11 . when the door 11 is closed , as shown in fig1 , the tilt switch 26 is in an open position as seen in sectional view 40 . the knob 34 having its pointer 22 set at near numeral 4 on the visual indicator 39 . as the door 11 opens to the position shown in fig1 , the door 11 pivots outwardly about a hinge mechanism 12 located near the top of the door 11 . as the door 11 pivots open outwardly , the tilt switch ball rolls under the force of gravity to the other end of tilt switch 26 , when the door 11 has pivoted from near 15 degrees from its closed vertical position . when the tilt switch 26 ball 26 a has rolled to the other end of the tilt switch 26 , the circuit is completed through wire circuit 30 which causes the transmitter mechanism 14 to transmit signal 16 to the receiver 17 , thus activating the visual light 19 and sound alert 18 , to notify the recipient that the mailbox door 11 has been opened .
a transmitting mechanism for indicating the deposit of mail into mailboxes having doors that pivot about a horizontal hinge . such mailboxes normally identified as curb side , wall mounted , and slot type . the transmitting mechanism is comprised of an adjustable knob capable of positioning an adjoining tilt switch , such that the mechanism can be set to send a signal at any preferred mailbox opening . as the mailbox door is opened past a predetermined angle , the tilt switch completes a circuit which emits a signal to a remote receiver which activates a sound and visual alarm indicating that mail has been deposited in the mailbox .