Abstract
A speed square with a highly-visible level vial where the level vial and cushioning members are sandwiched and compressed between interacting portions of the square's blade and the square's heel, with the cushioning members positioned above the level vial adjacent to the blade, or below the level vial adjacent to the heel, as desired. The level vial may be fully contained with a thick heel, or may be positioned in order to be held partially or fully above the top surface of a thin or thick heel, within a viewing notched formed in the blade for better visibility.
Claims
1. A square with a level vial comprising: a blade of generally triangular shape having a first bottom edge, a second perpendicular edge that is perpendicular to the first bottom edge, and a third long edge that defines a hypotenuse between the first bottom edge and the second perpendicular edge; a heel of generally parallelepiped shape with an elongated body having top, bottom, front, and back faces, and two ends; a level vial; a cushioning member; fasteners for connecting the first bottom edge of the triangular blade to the top face of the heel; and interacting portions of the triangular blade and the heel configured to compress the level vial and cushioning member together when the first bottom edge of the triangular blade is connected to the top face of the heel.
2. The square of claim 1 wherein the cushioning member is positioned above the level vial.
3. The square of claim 1 wherein the cushioning member is positioned below the level vial.
4. The square of claim 1 wherein the cushioning member comprises a pair of spaced rubber balls.
5. The square of claim 1 wherein the level vial is held fully within the heel below the top face of the heel.
6. The square of claim 1 wherein the level vial is held partially above the top face of the heel.
7. The square of claim 1 wherein the level vial is held fully above the top face of the heel.
8. The square of claim 1 wherein the blade includes a viewing notch in its first bottom edge, and wherein the level vial is held at least partially above the top face of the heel and within the viewing notch.
9. The square of claim 8 wherein the level vial is held fully above the top face of the heel and within the viewing notch.
10. The square of claim 1 wherein the heel is a thin heel where the distance between the top and bottom faces is less than a height of the level vial.
11. The square of claim 1 wherein the heel is a thick heel where the distance between the top and bottom faces is greater than a height of the level vial.
12. The square of claim 1 wherein the first bottom edge of the blade has threaded apertures, wherein the heel has apertures that align with the threaded apertures in the first bottom edge of the blade, and wherein the fasteners comprise machine screws that pass through the apertures in the heel into the threaded apertures in the first bottom edge of the blade in order to tightly pull the blade and heel together.
13. A square with a level vial comprising: a blade; a heel; a level vial; a cushioning member; and interacting portions of the blade and heel configured to compress the level vial and cushioning member together when the blade is connected to the heel.
14. The square of claim 13 further comprising fasteners for connecting the blade to the heel.
15. The square of claim 13 wherein the cushioning member comprises a spaced pair of rubber balls.
16. The square of claim 15 wherein the spaced pair of rubber balls are located below the level vial and adjacent to the heel.
17. The square of claim 15 wherein the spaced pair of rubber balls are located above the level vial and adjacent to the blade.
18. The square of claim 13 wherein the blade includes a notch in a bottom edge of the blade, and wherein the level vial is held at least partially above the heel and within the notch.
19. The square of claim 18 wherein the interacting portions of the blade and heel comprise a spaced pair of seats in a bottom edge of the blade for holding the spaced pair of rubber balls above the level vial, and a spaced pair of saddles extending upwardly from a top face of the heel for holding the level vial above the heel and below the spaced pair of rubber balls, the interacting portions of the blade and heel holding the level vial above the heel within the notch.
20. The square of claim 18 wherein the interacting portions of the blade and heel comprise a pair of seats in the heel for holding the spaced pair of rubber balls below the level vial, and a spaced pair saddles extending downwardly from the blade at a top side of the notch for holding the level vial above the spaced pair of rubber balls, the interacting portions of the blade and heel holding the level vial above the heel within the notch.
21. The square of claim 13 wherein the heel is a thick heel having a height that is greater than a height of the level vial.
22. The square of claim 21 wherein the thick heel has a depression that is sufficiently deep for fully receiving the level vial within the heel.
23. The square of claim 21 wherein the thick heel has a depression that is sufficiently deep for partially receiving the level vial within the heel.
24. The square of claim 13 further comprising a removeable bottom plate in the heel, the removable bottom plate being smaller than a bottom face of the heel but sufficiently large for providing access to remove, clean, or replace the level vial without disconnecting the heel from the blade.
Description
DRAWINGS
[0014] The invention is generally shown by way of reference to the accompanying drawings in which:
[0015] FIG. 1 shows a prior art speed square 10 of unitary construction where a heel 20 and a blade 30 are integrally formed from a unitary piece of metal;
[0016] FIG. 2 shows a prior art speed square 10 of multipiece construction formed from a heel 20 and a separate blade 30 where a level vial 40 is contained in the speed square's heel 20, but is relatively difficult to see;
[0017] FIG. 3 shows a speed square 110 with a highly visible level vial 140 according to a first preferred embodiment of the invention, the speed square 110 being of multipiece construction formed from a heel 120, a separate blade 130, and a level vial 140 located above the heel 120 and in a viewing notch 150 formed in the relatively narrow blade 130;
[0018] FIG. 4 is an exploded view of the speed square 110 from FIG. 3;
[0019] FIG. 5 is a closeup view of the viewing notch 150 in the blade 130, the viewing notch featuring a pair of hemispherical seats 159 for receiving rubber cushioning balls 160;
[0020] FIG. 6 is a closeup view of the heel 120 showing a pair of spaced, upward projecting saddles, or vial supports 127, 127 that rise upward from the top of the heel 120;
[0021] FIG. 7 is a closeup view showing how the level vial 140 rests in the vial supports 127 for subsequent insertion into the viewing notch 150;
[0022] FIG. 7 is a closeup view showing how the level vial 140 rests in the vial supports 127 for subsequent insertion into the viewing notch 150;
[0023] FIG. 8 is a closeup view showing the blade 130 being pressed down onto the heel 120 such that the level vial 140 is inserted into the blade's viewing notch 150 until the top of the vial 140 just begins to press against the rubber cushioning balls 160 (circular dashed lines) while there is still a small gap between the blade 130 and the heel 120;
[0024] FIG. 9 is a closeup view that corresponds to FIG. 8, but after the blade 130 has been fully attached to the heel 120 such that the rubber cushioning balls 160 (oval dashed lines) are slightly compressed so as to hold the vial 140 in place with some degree of protection (note the absence of the gap that is visible in FIG. 8);
[0025] FIG. 10 to 13 show various embodiments for the heel 120, including a basic heel 120.1 which provides a measurement scale with side-located indicia (hexagons) for marking standard dimensional lumber widths (1.5, 3.5, 5.5, and 7.5), a magnet-enhanced heel 120.2 which adds seats 128 for holding magnets; a magnet-enhanced heel 120.3 which includes alternative indicia (central hexagons), and a magnet-enhanced heel 120.4 which omits the measurement scale but retains dimensional lumber indicia;
[0026] FIGS. 14a to 14d show the presently preferred blade 130 including its viewing notch 150, cushioning member seats 159, 159, elongated notches 156 for receiving elongated alignment bosses that extends upward from the heel 120, and threaded apertures 157 for fastening the heel 120 to the blade 130;
[0027] FIGS. 15a to 15d are various views of a basic heel 120.5, without magnets, including in order, a bottom view, a top view, a side view, and a cross-sectional view, showing elongated bosses 126, the vial seats 127, and a plurality of screw apertures 129;
[0028] FIGS. 16a to 16d are various views of the heel 120.4 shown in FIG. 13, which is similar to the heel 120.5 of FIGS. 15a to 156d except that it has seats 128 for holding magnets (not shown), including in order, a bottom view, a top view, a side view, and a cross-sectional view; and
[0029] FIGS. 17a to 24a, and corresponding FIGS. 17b to 24b, respectively, show eight alternative embodiments for speed squares 110, 210, 310, 410, 510, 610, 710, and 810. The a-suffix figures show each embodiment in exploded form, and the b-suffix figures show a transverse, cross-sectional close-up of each fully-assembled speed square within a circular region that surrounds and sections through each level and surrounding structure.
DETAILED DESCRIPTION
[0030] FIGS. 3 to 16d show a first preferred embodiment of a speed square 110 with a highly visible level vial 140. As best shown in FIGS. 3 and 4, taken together, the preferred speed square 110 is of multipiece construction, formed from a thin heel 120, a blade 130, and a level vial 140 that is uniquely sandwiched between the heel 120 and the blade 130, along with a pair of cushioning, compression, shock-absorbing members 160, e.g. a pair of small rubber balls 160. In this embodiment, as with others, the blade 130 includes a viewing notch 150 at a bottom edge, and the level 140 is held at least partially above or proud of the heel 120, within the viewing notch 150.
[0031] In the exploded view of FIG. 4, one can see that the interacting portions of the first preferred embodiment. Here, the heel 120 of the first preferred speed square 110 includes a pair of spaced, upward projecting saddles, or vial supports 127, 127 that rise upward from the top of the heel 120, in order to support the level vial 140 in an elevated position. As explained further below, the interacting portions of the blade and heel may be varied, as desired, to position the level vial in various locations (in the heel if thick enough, partially above the heel, or fully above the heel) and, when above the heel, within a notch provided in the blade.
[0032] FIGS. 14a to 14d show the presently preferred blade 130 and its interacting portion including its viewing notch 150, cushioning seats 159, 159, elongated notches 156 for receiving elongated connection bosses that extend upward from the heel 120, and threaded apertures 157 for fastening the heel 120 to the blade 130.
[0033] FIG. 5 is a closeup view of the viewing notch 150 in the bottom edge of the blade 130. As shown, the viewing notch 150 features a pair of hemispherical seats 159 for receiving the rubber cushioning balls 160.
[0034] FIGS. 5-9, taken together, show how the first preferred speed square 110 is assembled with the level 140 and rubber cushioning balls 160 sandwiched between the heel 120 and the blade 130. In FIG. 5, the cushion balls 160 are placed into the hemispherical seats 159 on either side of the viewing notch 150. FIG. 6 shows the saddles 127, and FIG. 7 shows the vial 140 placed on top of the saddles 127.
[0035] FIG. 8 is a closeup view showing the blade 130 being pressed down onto the heel 120 such that the level vial 140 is inserted into the blade's viewing notch 150 until the top of the vial 140 just begins to press against the rubber cushioning balls 160 (circular dashed lines) while there is still a small gap between the blade 130 and the heel 120.
[0036] FIG. 9 is a closeup view that corresponds to FIG. 8, but after the blade 130 has been fully attached to the heel 120 such that the rubber cushioning balls 160 (oval dashed lines) are slightly compressed so as to hold the vial 140 in place with some degree of protection (note the absence of the gap that is visible in FIG. 8).
Various Heel Embodiments
[0037] FIGS. 10 to 13, 15a to 15d, and 16a to 16d show various embodiments for the heel 120, including heels 120.1, 120.2, 120.3, 120.4, and 120.5. FIG. 10 shows a basic heel 120.1 which provides a measurement scale with side-located indicia (hexagons) for marking standard dimensional lumber widths (1.5, 3.5, 5.5, and 7.5). FIG. 11 shows a magnet-enhanced heel 120.2 which adds seats 128 for holding magnets. FIG. 12 show another magnet-enhanced heel 120.3 which includes alternative indicia (central hexagons). FIG. 13 shows yet another magnet-enhanced heel 120.4 which omits the measurement scale but retains dimensional lumber indicia.
[0038] FIGS. 15a to 15d are various views of a basic heel 120.5, without magnets, including in order, a bottom view, a top view, a side view, and a cross-sectional view, showing elongated bosses 126, the vial seats 127, and a plurality of screw apertures 129.
[0039] FIGS. 16a to 16d are various views of the heel 120.4 shown in FIG. 13, which is similar to the heel 120.5 of FIGS. 15a to 156d except that it has seats 128 for holding magnets (not shown), including in order, a bottom view, a top view, a side view, and a cross-sectional view.
Review of First Preferred and Alternative Embodiments
[0040] FIGS. 17a to 24a, and 17b to 24b, respectively, show eight different embodiments for speed squares 110, 210, 310, 410, 510, 610, 710, and 810. The a-suffix figures show each embodiment in exploded form, and the b-suffix figures show a transverse, cross-sectional close-up of each fully-assembled speed square within a circular region that surrounds and sections through each level and surrounding structure.
[0041] In FIGS. 17a and 17b, the first preferred embodiment 110 sandwiches a level 140 and cushioning members 160 between a thin heel 120, with the cushioning members 160 located above the level 140, adjacent to the blade 130. The heel 120 has upward projecting saddles 127 that hold the level 140 upward above the top surface of the heel 120 and into the blade's notch 150, and the blade 130 has hemispherical seats 159 that hold the cushioning member 160 above the level 140.
[0042] FIGS. 18a to 24a, and 18b to 24b, respectively, related to the fact that there are, of course, numerous other possible embodiments for the interacting portions of the blade and hell for securing a level therebetween, and the fact that the cushioning members 160 can be located on the heel-side of the vial 140, or on the blade-side of the vial 140 with equal efficacy. The speed squares 110 and 210 are thin heel embodiments, whereas the speed squares 310 to 810 are thick heel embodiments.
Thin Heel Embodiments
[0043] FIGS. 17a and 17b show the first preferred speed square 110 where the cushioning members 160 are above the vial 140 and the vial 140 is held above the heel 120. The other FIGS. 18 to 24 show several additional embodiments. When appropriate, the drawings of these alternative embodiments use the same numbering scheme, but with the leading digit increment by 1, e.g. 210 instead of 110, and 250 instead of 150, etc. When the items shown are identical, e.g. level vial 140 and cushioning balls 160, the same numbers are used.
[0044] FIGS. 18a and 18b show a second preferred speed square 210 that also features a thin heel 220. Here, however, the vial 140 is above the cushioning members 160. The heel 220, therefore, does not include the saddles 127, but rather includes a pair of depressions 227 for receiving the heel-side cushioning members 160. The blade 230 has a viewing notch 250, but instead of depressions 159, it has downward projecting saddles 259 that seat against the vial 140. In this embodiment, the vial 140 is proud of the top surface of the heel 220, but it sits a bit lower than was the case with the first preferred speed square 110.
Thick Heel Embodiments
[0045] FIGS. 19 to 23, each containing a perspective figure a and a closeup view b, show five different thick heel embodiments where the level 140 and cushioning members 160 are captured between the heel and the blade, with the level 140 in progressively higher positions.
[0046] FIGS. 19 and 20 are somewhat related. In FIGS. 19a and 19b, the cushioning members 160 are above the vial 140 and adjacent to the blade 330, which features a downward projection 338, and the vial is fully within the thick heel 320. In FIGS. 20a and 20b, the cushioning members 160 are still above the vial 140 and adjacent to the blade 430, but the blade no longer includes a projection, and the vial is positioned a bit higher yet still fully within the thick heel 420.
[0047] FIGS. 21 to 23 are also somewhat related in that the vial 140 is supported at least partially above a top surface of each heel 520, 620, 720, and 820, respectively. In FIGS. 21a and 21b, the cushioning members 160 are above the vial 140 and adjacent to the blade 530, but a small viewing window 550 has been provided in the blade 530 to allow the vial to be supported partially above the heel 520. In FIGS. 22a and 22b, the blade 630 features a medium-height viewing window 650, and the vial 140 is now supported fully above the heel 620. Noe that the cushioning members 160 are not on the heel-side of the vial 140. Finally, in FIGS. 23a and 23b, the blade 730 features a large viewing window 750, and the vial is supported well above the top surface of the heel 720.
[0048] FIGS. 24a and 24b, lastly, show an embodiment where the heel 820 has a bottom plate 870. Here, the vial 140 is fully positioned in the heel 820, as with the embodiment of FIGS. 19a and 19b, but here the heel 820 includes a removable bottom plate 870 that contains a window 870 for viewing the vial 140, and carries a pair of upward saddles 827, 827. As a result, the vial 140 and cushioning members 160 are sandwiched between the blade 830 and a combination of the heel 820 and associated bottom plate 870. In this embodiment, if the user desires to replace the vial 140, the bottom plate 870 can be conveniently detached from the heel 820 by removing only two screws.
[0049] It can be appreciated that many other embodiments are possible without departing from the spirt or scope of the claimed invention.
