Geometrical instruments – Gauge – With point marker
Reexamination Certificate
1998-07-31
2001-01-30
Gutierrez, Diego (Department: 2859)
Geometrical instruments
Gauge
With point marker
C033S768000, C033S769000, C033S761000, C033S759000, C033S042000
Reexamination Certificate
active
06178655
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
This invention relates generally to measuring instruments and marking devices. More particularly, it relates to marking apparatus for attachment to a measuring instrument to mark an article being measured.
BACKGROUND OF THE INVENTION
The process of making a measurement and marking an article according to the measurement can be time consuming and can be subject to inaccuracies. The present invention is aimed at improving both efficiency and accuracy of measurement and marking.
BACKGROUND ART
A number of patents have described markers associated with measuring instruments. U.S. Pat. No. 1,529,293 to Beulwitz discloses a protractor in which a paper is pricked when a knob is depressed, pushing a pin into the paper. U.S. Pat. No. 2,575,354 to Mills discloses a flexible measuring tape and case, having a scriber point which is exposed in a scribing position only when the tape is locked by rotating the case. The surface being measured may be marked with the scriber point by sliding the case laterally for a short distance on the surface while the tape is locked. U.S. Pat. No. 2,624,120 to Mills discloses a measuring device having an improved case with cooperating locking means for a tape and scribing means characterized by exposure of the scribing means in a scribing position only when the tape is locked and characterized by automatic withdrawal of the scribing means into a non-exposed, non-scribing position during the time the tape is not locked. The work is marked by moving the entire case a short distance sideways while the scriber point is in contact with the work. U.S. Pat. No. 2,649,787 to Kobayashi discloses a scratch marker attached below the point where a tape measure exits its case. U.S. Pat. Nos. 2,807,886 and 3,148,455 to Aciego disclose pencil and tape holders that clamp onto a tape measure case and allow marking with an inserted pencil. U.S. Pat. No. 3,063,157 to Keene discloses a marker that attaches to a tape measure case and that may be folded up into a slot at the back of the case when not in use. U.S. Pat. No. 3,262,211 to Beckett discloses a marking device attached to a folding measuring tape or to a tape measure case. U.S. Pat. No. 3,336,678 to Chamberlain et al. discloses a marking attachment for a coiled measuring tape, which attaches to the tape measure case like a C-clamp and has a spring-loaded pin with a marking point at its lower end. U.S. Pat. No. 3,731,389 to King discloses a tape measuring device with a spring-loaded marking mechanism within the casing at the end opposite the end at which the tape is withdrawn. Markings on the tape are read through a window and are arranged to correspond to the distance between the marking element and the free end of the tape.
U.S. Pat. No. 3,802,083 to Freed shows a marker and stop accessory for extensible measuring tapes, which is mounted on the tape casing adjacent to the tape-issuing opening. A spring-mounted marking element is depressed to mark the article being measured, and a pointer engages the tape to indicate the length of issued tape as well as to arrest any further movement of the tape. U.S. Pat. No. 3,885,314 to Banas, Sr. discloses a two-way tape and centering device with two measuring tapes extensible in opposite directions, located in separate compartments of a single housing. An inscribing device projects through the housing between the two tape measures. A spring maintains the inscribing device in a raised position with the tip enclosed in the housing until the shaft is depressed to make a mark. U.S. Pat. No. 4,015,337 to Taylor shows a combined tape measure and marking device with a spring-loaded arm pivotally supported from one side of the tape measure housing. The forward end of the arm supports an alignment arrow and marking device. The marking device is manually actuated after the alignment arrow is aligned with the desired graduation. When the arm is released, the arm automatically assumes a position in which the marking device is out of contact with the measured article, and the marking quill retracts to a concealed position where it will not further mark the article measured. U.S. Pat. No. 4,296,554 to Hammerstrom discloses a tape measure with a spring clip for attaching the tape to a belt of clothing and also for receiving and positioning a pencil or scribing tool, aligned precisely with the point of exit of the tape from the housing. U.S. Pat. No. 4,439,927 to Elliott shows a tape measure with a casing which also contains a consumable marker and a scriber disposed immediately forward of and alongside the slot through which the coiled tape is withdrawn. Either the marker or scriber may be positioned via manual actuating means to mark an object being measured. A brake is automatically activated when either the marker or the scriber is positioned for marking. The brake can also be activated without marking. A plurality of feed segments compensate for diminishing length of the marker with use.
U.S. Pat. No. 4,542,589 to Yamamoto discloses a marker which may be contained in a tape measure case, mounted on the side, or mounted on the top of the case. In use, the marker is projected to mark a desired point on the surface to be measured. In one embodiment this is accomplished by tilting the tape measure case about one of its comers. U.S. Pat. No. 4,630,376 to Pentecost shows an internally-mounted marking device for a tape measure with a spring-loaded member allowing the user to mark the surface of a workpiece immediately beneath the tape measure. U.S. Pat. No. 4,965,941 to Agostinacci discloses a combination marker and tape measure having a pair of markers which may be used to mark a surface on each side of a flexible tape. A plunger knob is depressed into a recess formed on a declining front face of the housing to move the markers between a retracted configuration and an extended configuration. A locking mechanism formed on a plunger permits selective locking of the tape. A guide foot removably mounted on an end tab enables marking of a line parallel to an edge of a surface. U.S. Pat. No. 5,020,235 to Martin shows a layout device for locating a wall-mounted item at a specified distance from a reference point such as a floor. The device includes a bracket which is removably mounted to a measuring tape. A level attached to the bracket indicates vertical alignment of both the extended tape and the item which is to be installed. The bracket includes protrusions which form indentations marking the measured location when the bracket is forced against the wall surface.
U.S. Pat. No. 5,416,978 to Kaufman discloses a marking device having a housing with a tape opening and a marker opening. A linkage assembly is movably disposed within the housing such that when a linkage engaging aperture engages the linkage assembly, the linkage assembly engages and moves a marking member through the marker opening.
U.S. Pat. No. 5,435,074 to Holevas et al. discloses a tape measure and marking device having a locking mechanism, disposed on the front side of its housing, adjacent to a marker housing containing a marker. The locking mechanism is linked to the marker and a scribe through a lever arm. When the locking mechanism is pressed down, the lever arm drives the marker outside the marker housing, exposing the tip of the marker. Further movement of the locking mechanism moves it into a locked position whereby the measuring tape is fixed after the user releases the locking mechanism. Thus, in the Holevas et al. device, both locking and marking are actuated by manually operating the locking mechanism.
U.S. Pat. No. 5,477,619 to Kearns shows a tape measure marking attachment that includes a generally cylindrically shaped housing for holding a marking utensil. A mechanism is included integral with the housing for releasably locking the marking utensil within the housing.
PROBLEMS SOLVED BY THE INVENTION
When a carpenter or other worker makes a measurement, there is often a need to reach for a marking pencil or the like to make a mark on an article being measured and then to store the marking im
Dever Kathleen M.
Potter Michael D.
Guadalupe Yaritza
Gutierrez Diego
Touw Theodore R.
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