Line Level Type Patents (Class 33/369)
  • Patent number: 11740082
    Abstract: A level includes a frame supporting a plurality of vials and having an aperture disposed on an end of the level. The level also includes an end cap assembly detachably coupled to the end of the frame. The end cap assembly includes an end cap and a retainer. A portion of the end cap is received in the aperture and is maintained in engagement with the frame by the retainer.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: August 29, 2023
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Roger D. Neitzell, John Christianson, Fraizier Reiland, Christopher F. Boehme
  • Patent number: 9341472
    Abstract: A device for measuring the level of the end surface of a pipe, comprising a body, a planar reference surface, and a retractable spring-loaded finger extendable through and below the planar reference surface to engage the inside surface of the pipe and secure the level in place. The level body may comprise an elongated body having an elongated chamber and an elongated reference plane, said plane comprising at least one reference surface and at least one opening to the chamber.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: May 17, 2016
    Inventor: Roy G. Sowley, Jr.
  • Patent number: 7805849
    Abstract: A device and a method that aids in the leveling of intra-vascular catheters from the transducer to the patient for medical procedures takes the form of a small housing which encloses a strong resilient filament which is dispensed therefrom. A bubble level vial is fixedly mounted thereupon the housing. The device thereby provides a means to acquire the desired leveling pressure readings of the intra-vascular catheter with minimal amount of effort by attaching one (1) end of the filament there to the patient and the opposing end to the transducer. When finished, the filament is retracted and stored.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: October 5, 2010
    Inventor: Charles E. Baker, Jr.
  • Patent number: 7363719
    Abstract: A pocket level having a detachable line level whose bubble vial doubles as the pocket level's horizontal bubble vial, and an angle finder for enabling the determination of the angle of an inclined surface which includes a bubble vial housed in a wheel rim directly rotated by a user applying a rotation force to a portion of its exterior non-slip circumferential wheel rim surface preferably accessible via a throughgoing cutout formed in the pocket level's upper surface.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: April 29, 2008
    Assignee: Kapro Industries, Ltd
    Inventors: Amy Levinson, Gabriel Kohner
  • Patent number: 6829836
    Abstract: A material dispensing apparatus with line level for conveniently storing and providing access to a line level within a material dispenser. The material dispensing apparatus with line level includes a shoulder having a receiver cavity, a first catch member and a second catch member attached to the shoulder within the receiver cavity, and a line level having a first nub and a second nub at opposing ends thereof. The nubs are catchably received within the catch members when the line level is positioned within the receiver cavity. An alternative embodiment utilizes the hooks of the line level to engage members extending inwardly from the receiver cavity.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: December 14, 2004
    Assignee: New Products Marketing Corporation
    Inventor: Charles D. Black
  • Publication number: 20030226269
    Abstract: A level apparatus for indicating the orientation relative to vertical of a surface of an object extending along a user line of sight, including a fluid vessel containing an indicator fluid including a liquid and having a fluid surface, the fluid vessel having a vessel abutment region with a rearward abutment wall for placing against a surface of an object to be evaluated for tilt and with a forward display wall including a fluid display window extending generally perpendicular to the user line of sight, the fluid surface being visible in the fluid display window when the abutment wall is substantially upright, and includes a vessel reservoir region extending at least one of: rearwardly and forwardly from the vessel abutment region along the user line of sight, the vessel abutment region and the vessel reservoir region being in mutual fluid communication.
    Type: Application
    Filed: February 21, 2003
    Publication date: December 11, 2003
    Inventor: Harold A. Leasure
  • Patent number: 6581295
    Abstract: A material dispensing apparatus with line level for conveniently storing and providing access to a line level within a material dispenser. The material dispensing apparatus with line level includes a handle structure formed for removably receiving the line level. The handle structure is preferably comprised of a handle post structure having a receiver slot for receiving the line level within. A plurality of first nubs extend inwardly from the walls of the receiver slot to selectively retain the line level within the receiver slot. A handle cover is removably attachable about the handle post structure for enclosing the handle post structure during usage of the material dispenser structure.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: June 24, 2003
    Assignee: New Products Marketing Corporation
    Inventor: Charles D. Black
  • Patent number: 6148529
    Abstract: A multipurpose retractable leveling device including a pair of side housings each having a generally rectangular configuration. A central level portion is positioned between the pair of side housings. The central level portion is defined by a rectangular housing with a vertically oriented spirit level and a horizontally oriented spirit level. A pair of strings have first ends secured to a first side housing with the strings extending through the central level portion with second ends of the pair of strings extending inwardly of a second side housing whereby the central level portion is slidably disposed on the pair of strings. A locking retractable spool is disposed within the second side housing for engaging the second ends of the pair of strings.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: November 21, 2000
    Inventor: Seamus Kennedy
  • Patent number: 6094833
    Abstract: A tape blade level that includes a housing that has an attaching means that secures the level to a tape measure blade. The attaching means includes an arcuate opening that conforms in shape to a typical tape measure blade. The opening is constructed in such a manner that the device can also be readily affixed to a string line. The housing allows the level vial bubble to be viewed from both the front and the rear of the level.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: August 1, 2000
    Inventor: Travis D. Medley, Jr.
  • Patent number: 5758858
    Abstract: A paralleling device comprises a thin sheet of material which is adapted to support a bubble level and be removably attached to a hanging wall article. The paralleling device can be used to parallel a wall article to be hung with the surface of an adjacent piece of furniture.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: June 2, 1998
    Inventor: Renny H. Barnes
  • Patent number: 5659967
    Abstract: A line level comprises a hollow housing having a pair of end portions and a sight opening formed therein. A liquid level indicator has a pair of closed end walls and is observable through the sight opening is slidably received in the housing. A line engaging retainer arrangement is slidable into an interference fit in each of the open end portions of the housing and is engageable with each of the closed end walls of the liquid level indicator for maintaining the position of the liquid level indicator relative to the sight opening in the housing.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: August 26, 1997
    Assignee: Johnson Level & Tool Mfg. Co., Inc.
    Inventor: Jean-Guy Dufour
  • Patent number: 5330179
    Abstract: A gauge for determining the distance of break, on a surface of golf green for a properly putted golf ball moving from a given point toward a golf cup. The gauge includes a base having measure indica at each end thereof and a level indicating member on one edge thereof. A sighting element is pivotally secured with the base and includes measure indica pointing means at each end thereof. By selecting a given point from the golf cup and arranging the base so that the level indicating member indicates level and arranging the sighting element to be coplanar with the surface of the golf green at the golf cup, the indica pointing means will point to measure indica denoting the distance of break of the golf ball to the left or right of the cup.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: July 19, 1994
    Inventor: Frederick E. Hampel
  • Patent number: 5044087
    Abstract: An apparatus is arranged relative to a port or line to suspend the apparatus and effect leveling of the associated line. The apparatus includes a housing, with a top wall defined by an elongate opening, with a liquid level member positioned within the housing. The top wall further includes a first and second slot to each side of the housing, with each slot mounting hook members that are normally biased together to define an enclosed loop and are biased apart to a second position for opening relative to the line to effect mounting of the housing to the line.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: September 3, 1991
    Inventor: Brian McAuslin
  • Patent number: 4669195
    Abstract: A lip extends along the free side of the base of a protractor for suspending the protractor upside down from a guide cord. A freely hanging weight or "plumb bob" is suspended from the center point between the protractor base lines. When the plumb bob points to a predetermined angle on the protractor scale, the guide cord will be laid out along the same desired angle from the horizontal.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: June 2, 1987
    Inventor: Curtis W. Griffin
  • Patent number: 4462167
    Abstract: A hand-held instrument for leveling, and indicating and measuring angles for use with an anchored guide string, including a case, a fixed scale and a pendulum-activated indicator mounted in the case, a disc-shaped string direction sensor member rotatably mounted in the case and having a string alignment mark, and an aperture with peripherally located case axis marks for determining coincidence between the string alignment and case axis marks.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: July 31, 1984
    Inventor: David T. K. Huat
  • Patent number: 4335522
    Abstract: A transparent plumb bob having a fixed point and an associated movable point, to be aligned therewith for determination of a vertical line through a given exterior point, optionally including means for horizontal leveling and easily securing the bob intermediate the ends of a string. A vertical or horizontal line is determined by fixing one string end to a point spaced from the plumb bob and then pivoting the plumb bob and other string end about the point until the associated indicators are in alignment.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: June 22, 1982
    Assignee: Canfield Corporation
    Inventor: Robert L. Canfield
  • Patent number: 4204334
    Abstract: A precision level, plumb and angle indicating device responsive to static gravity which has a hollow square frame provided with substantially equal parallel planar surfaces arranged with permanent magnet blocks embedded within each corner for abutting against a horizontal or vertical plane of an object, particularly a machine tool, for determining and/or orienting angles of inclination, as well as establishing level or plumb references to as close a tolerance as one sixtieth of an angular degree(minute). A circular plate or disk and a disk ring with indicia or graduations and corresponding numerals, adjustably disposed within an annular frame selectively rotatable about an opening at the front of said hollow square frame, cooperates with indicating pointers operatively affixed on shafts centrally located within the aforementioned circular plate or disk with degree graduations, and said disk ring displays minute graduations.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: May 27, 1980
    Inventor: Luis B. Dela Cruz
  • Patent number: 4068386
    Abstract: A line level made of two substantially identical halves molded from thermoplastic material. Each half has an internal surface in the shape of a part of a cylinder which co-operates with a like surface on the other half to receive an end of a level vial. The ends of each half are rectangular and a cylindrical level vial is sandwiched between the halves with its ends resting on the internal cylindrical surfaces. Each half has an outer rectangular surface and a pintle extending inwardly on one end and a hollow boss on the other end which receives the pintle on the other half. An energy director is formed on the one half on the edges that engage the other part for ultrasonically welding the parts together.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: January 17, 1978
    Inventor: Walter E. Streeter