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Multifunctional bubble level

  • US 9,052,191 B1
  • Filed: 06/05/2013
  • Issued: 06/09/2015
  • Est. Priority Date: 06/05/2013
  • Status: Expired due to Fees
First Claim
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1. A multifunctional bubble level (100) with integrated laser distance measurer and tape measurer, wherein the bubble level comprises:

  • (a) a bubble level housing (110) having a first end (112) and a second end (114), wherein the housing has an top side (101), a flat bottom side (102), a front side (103) and a back side (104), wherein a first see-through hole (116) and a second see-through hole (118) are disposed within the housing between the first end (112) and the second end (124), wherein the first see-through hole (116) and the second see-through hole (118) are see-through holes passing through the front side (103) and the back side (104);

    (b) a horizontal bubble tube disposed on the top side (101) of the housing (110) between the first end (112) and the second end (114);

    wherein the horizontal bubble tube is parallel to the flat bottom side (102);

    (c) a vertical bubble tube (121) disposed within the first see-through hole (116);

    wherein the vertical bubble tube is vertical to the flat bottom side;

    (d) an inclination bubble tube (121) disposed within the second see-through hole (118);

    wherein the inclination bubble tube is at a predetermined degree related to the bottom side;

    (e) a self-retracting tape measure (210) removably attached to the first end (112) of the housing (110), wherein the tape measure (210) comprises a tape measure body (212) and a tape measure head (211) with an upper side (411) and a bottom side (412), wherein the tape measure comprises a roll of ribbon (221) with linear-measurement markings disposed within the tape measure body (212) and a lock switch (222) disposed on the head (211), wherein the lock switch (222) is switchable between a lock position to stop ribbon retraction and an unlock position to allow ribbon retraction;

    wherein when the lock switch (222) is at the unlock position, the ribbon (221) is extendable in a direction perpendicular to the flat bottom side (102);

    wherein when the self-retracting tape measure (210) attaches to the first end (112) of the housing (110), the upper side (411) of the tape measure head (211) is leveled with the top side (101) of the housing (110) and the bottom side (412) of the tape measure head (211) is leveled with the flat bottom side (102);

    (f) a laser distance measurer (310) disposed on the second end (114) of the housing (110), wherein the laser distance measurer (310) comprises;

    (i) a laser generator (313) with a laser exit point (320) disposed on the bottom side (102) of the housing (110);

    (ii) a laser sensor (318) disposed on the bottom side (102) of the housing (110) adjacent to the laser exit point (320);

    (iii) a screen (314) disposed on the top side of the housing;

    (iv) a battery compartment (311) disposed on the housing (110) with a battery (312) residing inside;

    wherein the laser generator (313) and the screen (314) are powered by the battery (312);

    (v) a power button (316) disposed on the top side of the housing;

    (vi) a controller (315) disposed within the laser distance measurer (310), wherein the controller (315) is operatively connected to the laser generator (313), the screen (314), the battery (312), the power button (316) and the laser sensor (318);

    wherein when the power button (316) is turned on, the controller (315) sends a first signal to the laser generator (313), wherein the laser generator (313) subsequently generates a laser beam (321) shooting out from the laser exit point (320), wherein the laser sensor (318) is configured to sense a reflective laser reflected from a target and send a reflective laser signal to the controller (315), whereupon the controller (315) compares the first signal and the reflective laser signal, generates a second signal according to the comparison results and subsequently sends the second signal to the screen, whereupon the screen displays the second signal in terms of a distance between the laser distance measurer (310) and the target.

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