Engine oil measuring rod with magnet

Description

1 / 7 Engine oil dipstick with magnet. Cross-reference to related orders.

[0001] This patent application claims priority over U.S. Provisional Patent Application 63 / 556,859, pending, with a filing date of February 22, 2024. The subject matter of U.S. Provisional Patent Application 63 / 556,859 is incorporated into this application by reference. FUNDAMENTALS OF THE INVENTION

[0002] The need remains to filter or remove ferromagnetic particulates from engine oil inside a combustion engine crankcase. SUMMARY OF THE INVENTION

[0003] An engine oil dipstick fitted with a magnet having a cap assembly that is configured to be removablely coupled to a dipstick inlet hole of an internal combustion engine crankcase; a dipstick element having a first end and a second end; the first end of the dipstick element coupled to the cap assembly; a magnet that generates a magnetic field, the magnet having a first half and a second half; the second half of the magnet being closer to the second end of the dipstick than the first half of the magnet; the second half of the magnet being substantially encapsulated within the dipstick element.

[0004] A motor oil dipstick fitted with a magnet having a cap assembly that is configured to fit removablely into a dipstick inlet hole of an internal combustion engine crankcase; a dipstick element having a first end and a second end; the first end of the dipstick element being fitted to the cap assembly; a magnet that generates a magnetic field, the magnet having a first half and a second half; the second half of the magnet being closer to the second end of the dipstick. Petition 870260081675, dated 08 / 13 / 2026, pp. 81 / 96 2 / 7 measuring than the first half of the magnet; the second half of the magnet being substantially encapsulated within the measuring rod element; the second half of the magnet having a surface area of ​​the second half of the magnet; the portion of the second end of the measuring rod that substantially encapsulates the second half of the magnet having an outer surface; the outer surface having a surface area of ​​the outer surface; the surface area of ​​the outer surface being greater than the surface area of ​​the second half of the magnet.

[0005] A motor oil dipstick equipped with a magnet having a cap assembly that is configured to removablely attach to a dipstick inlet hole of an internal combustion engine crankcase; a dipstick element having a first end and a second end; the first end of the dipstick element being attached to the cap assembly; a magnet that generates a magnetic field, the magnet having a first half and a second half; the second half of the magnet being closer to the second end of the dipstick than the first half of the magnet; the second half of the magnet being substantially encapsulated within the dipstick element;the dipstick element having a length which, when the cap assembly is coupled to a dipstick inlet hole of an internal combustion engine crankcase, is configured to at least partially submerge the second half of the magnet which is substantially encapsulated within the dipstick element below a liquid fill level inside an internal combustion engine crankcase.

[0006] One advantage of the disclosed embodiments is that, at the distal end of the measuring rod element, the distal end of a magnetic element is substantially encapsulated within it. Because of this substantial encapsulation, the surface area on which ferromagnetic materials can accumulate is increased beyond the natural surface area of ​​the magnet. Petition 870260081675, dated 08 / 13 / 2026, pp. 82 / 96 3 / 7 BRIEF DESCRIPTION OF THE FIGURES

[0007] Figure 1 shows a perspective view of one type of measuring rod.

[0008] Figure 2 shows an exploded perspective view of one embodiment of a measuring rod.

[0009] Figure 3 shows a side view of a measuring rod embodiment.

[0010] Figure 4 shows an exploded side view of a measuring rod embodiment.

[0011] Figure 5 shows a perspective view of a modality.

[0012] Figure 6 shows an exploded perspective view of a measuring rod embodiment.

[0013] Figure 7 shows a diagram of a modality in use.

[0014] Figure 8 shows an example of a modality. DETAILED DESCRIPTION OF THE INVENTION

[0015] The modalities are directed to the engine oil dipstick 100 equipped with a magnet 110 that generates the magnetic field 118.

[0016] As shown in the figures, the engine oil dipstick 100 includes the cap assembly 120 having the threaded element of the cap assembly 122 which is configured to engage with the supplementary threaded element 144 in a dipstick inlet hole 142 of a combustion engine crankcase 140.

[0017] In the embodiments shown in Figures 1 to 4, the cover assembly 120 is fixedly coupled to the first end 152 of the measuring rod element 150, so that the measuring rod element 150 is in a fixed position relative to the cover assembly 120. In these fixed-position embodiments, the cover assembly 120 includes the cover button. Petition 870260081675, dated 08 / 13 / 2026, pp. 83 / 96 4 / 7 206 and the threaded element of the cover assembly 122.

[0018] In other embodiments, shown in Figures 5 and 6, the cover assembly 120 is rotatably coupled to the first end 152 of the measuring rod element 150 by means of the sphere 200 and the fitting 202, so that the measuring rod element 150 is movable relative to the cover assembly 120; The coupled connection obtained by the sphere 200 and the fitting 202 allows the measuring rod element 150 to assume a variety of angular positions relative to the cover assembly 120. In embodiments that include the sphere 200 and the fitting 202, and as shown in Figures 5 and 6, the cover assembly 120 includes the cover button 206, the cap 204, the threaded element of the cover assembly 122, and the fitting 202 (which couples to the sphere 200 which is fixedly coupled to the first end 152 of the measuring rod element 150).

[0019] The measuring rod element 150 has the first end 152, the second end 154, the first half of the measuring rod element 156 (which includes the first end 152) and the second half of the measuring rod element 158 ​​(which includes the second end 154). As shown in Figures 1, 3 and 5; and because these Figures show the measuring rod element 150 as having an opaque outer surface, the magnet 110 is shown, by means of an arrow, as being substantially encapsulated within the second half of the measuring rod element 158, within or near the second end 154. The exploded views shown in Figures 2, 4 and 6 show the magnet 110 located within or near the second end of the measuring rod element 154.To provide even greater clarity regarding the positions, in the embodiments, of magnet 110 within or near the second end of the measuring rod element 154, the hole 160 is configured to allow visibility of magnet 110 which is substantially encapsulated within the second half of the measuring rod element 158.

[0020] In embodiments where magnet 110 is described as Petition 870260081675, dated 08 / 13 / 2026, pp. 84 / 96 5 / 7 being substantially encapsulated within the second half of the measuring rod element 158, “substantially encapsulated” means that at least 90% of the surface area of ​​the magnet 110 is covered by the second half of the measuring rod element 158. In other embodiments, substantially encapsulated means that at least 80% of the surface area of ​​the magnet 110 is covered by the second half of the measuring rod element 158. In still other embodiments, substantially encapsulated means that at least 70% of the surface area of ​​the magnet 110 is covered by the second half of the measuring rod element 158.

[0021] As shown in Figure 2, magnet 110 has the first half of magnet 112, the second half of magnet 114, and the surface area of ​​the second half of magnet 116. The first half of magnet 112 is positioned closer to the first end of the measuring rod element 152 than the second half of magnet 114; similarly, the second half of magnet 114 is positioned closer to the second end of the measuring rod element 154 than the first half of magnet 112. In embodiments, at least the second half of magnet 114 is substantially encapsulated within the second half of the measuring rod element 158; In other embodiments, both the first half of magnet 112 and the second half of magnet 114 are substantially encapsulated within the second half of the measuring rod element 158. In embodiments, either the first half of magnet 112 or the second half of magnet 114 is visible through the hole 160.

[0022] In embodiments where the second half of magnet 114 is described as being substantially encapsulated within the second half of the measuring rod element 158, at least 90% of the surface area of ​​the second half of magnet 116 is covered by the second half of the measuring rod element 158. In other embodiments, at least 80% of the surface area of ​​the second half of magnet 116 is covered by the second half of the measuring rod element 158. In still other embodiments, Petition 870260081675, dated 08 / 13 / 2026, pages 85 / 96 6 / 7 minus 70% of the surface area of ​​the second half of magnet 116 is covered by the second half of measuring rod element 158.

[0023] As shown in the Figures, the portion of the measuring rod element 1510 substantially encapsulates the second half of the magnet 114. The portion of the measuring rod element 1510 has the outer surface of the measuring rod element 1512, which has a surface area. Since the second half of the magnet 114 is encapsulated within the portion of the measuring rod element 1510, the surface area of ​​the outer surface of the measuring rod element 1512 is necessarily greater than the surface area of ​​the second half of the magnet 116. Mathematically, this can be generically understood as the surface area of ​​the second half of the magnet 116 X2 being less than the surface of the measuring rod element 1512 having a surface area [X + Y]2, where both X and Y are positive integers; said in other words, X2 < [X + Y]2.This increased surface area (represented as [X + Y]2), due to the encapsulation of magnet 110, is advantageous because it provides relatively more surface area of ​​the measuring rod element onto which ferromagnetic materials 210 can be attracted and accumulate than would otherwise be available if magnet 110 were not encapsulated.

[0024] The dipstick element 150 has the length of the dipstick element 170 which, when the cover assembly 120 is coupled to a dipstick inlet hole 142 of an internal combustion engine crankcase 140 (by threading the threaded element of the cover assembly 122 into, or coupling to, a supplementary threaded element 144 in a dipstick inlet hole 142 of an internal combustion engine crankcase 140), is configured to at least partially submerge the second half of the magnet 114 (which is substantially encapsulated within the dipstick element 150) below a liquid fill level 146 within the internal combustion engine crankcase 140. Persons skilled in the art will be able to determine a useful length. Petition 870260081675, dated 08 / 13 / 2026, pages 86 / 96 7 / 7 of the measuring rod element 170 without having to perform improper experimentation.

[0025] Figures 7 and 8 show the engine oil dipstick 100 in use inside the crankcase environment of a combustion engine 130; Figure 7 provides a schematic of the crankcase environment of a combustion engine 130 and Figure 8 shows the engine oil dipstick 100 in use in a more specific crankcase environment of a combustion engine 130, which is part of a motorcycle. Figure 7 shows the magnet 110 generating the magnetic field 118 that is attracting and accumulating ferromagnetic materials 210 from the engine oil fluid flow represented by a plurality of arrows (shown circulating in a generally counterclockwise direction). The ferromagnetic materials 210 are shown to be attracted to and accumulating on the wall of the measuring rod element 1514 / outer surface of the wall of the measuring rod element 1516 (shown in Figures 2, 4, 5 and 6).The wall of the measuring rod element 1514 has the same thickness as the wall of the measuring rod element 1518, enabling the magnetic field 118 to pass through the wall of the measuring rod element 1514 and thus attract and accumulate ferromagnetic materials 210 on the outer surface of the wall of the measuring rod element 1516. In very general terms, useful thicknesses of the wall of the measuring rod element 1518 can be determined by persons skilled in the art without having to perform undue experimentation; in embodiments, the thickness of the wall of the measuring rod element 1518 is kept to a minimum to allow the magnetic field 118 to attract ferromagnetic materials 210 that are in position 190, which is close to the outside of the wall of the measuring rod element 1514.

[0026] In embodiments, the measuring rod element 150 is manufactured at least in part from a polymeric composition that can be selected by persons skilled in the art without having to perform undue experimentation. Petition 870260081675, dated 08 / 13 / 2026, pp. 87 / 96

Claims

1 / 2 CLAIMS 1. Engine oil dipstick (100) fitted with a magnet (110), CHARACTERIZED in that it comprises: a cap assembly (120) which is configured to be removablely coupled to a dipstick inlet hole (142) of a combustion engine crankcase (140); a dipstick element (150) having a first end (152) and a second end (154); the first end (152) of the dipstick element (150) coupled to the cap assembly (120); a magnet (110) which generates a magnetic field (118), the magnet (110) having a first half and a second half; the second half of the magnet (114) being closer to the second end of the dipstick than the first half of the magnet (112); and the second half of the magnet (114) is substantially encapsulated within the measuring rod element (150).

2. Engine oil dipstick (100) fitted with a magnet (110), CHARACTERIZED in that it comprises: a cap assembly (120) which is configured to be removablely coupled to a dipstick inlet hole (142) of a combustion engine crankcase (140); a dipstick element (150) having a first end (152) and a second end (154); the first end (152) of the dipstick element (150) coupled to the cap assembly (120); a magnet (110) which generates a magnetic field (118), the magnet (110) having a first half and a second half; the second half of the magnet (114) being closer to the second end of the dipstick than the first half of the magnet (112); Petition 870260083716, dated 08 / 18 / 2026, page.53 / 55 2 / 2 the second half of the magnet (114) is substantially encapsulated within the measuring rod element (150); the second half of the magnet (114) having a surface area of ​​the second half of the magnet (116); the portion of the second end of the measuring rod that substantially encapsulates the second half of the magnet (114) having an outer surface; the outer surface having a surface area of ​​the outer surface; and the surface area of ​​the outer surface being greater than the surface area of ​​the second half of the magnet (116). Petition 870260083716, dated 18 / 08 / 2026, pp. 54 / 55.

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