US2021140355A1PendingUtilityA1
Exhaust tail pipe insert/emissions filter
Individually held — no corporate assignee on recordPriority: Oct 20, 2015Filed: Nov 2, 2020Published: May 13, 2021
Est. expiryOct 20, 2035(~9.2 yrs left)· nominal 20-yr term from priority
F01N 3/021Y02A50/20F01N 3/24Y02T10/12F01N 3/0215F01N 3/022F01N 2410/08F01N 2240/05F01N 3/031F01N 2450/30F01N 3/0211F01N 13/082F01N 2450/18F01N 3/0892F01N 3/023
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Claims
Abstract
An exhaust tailpipe/emissions filter employs a reusable/replaceable insert and is configured to slide into and/or onto the exhaust tailpipe of the automobile to reduce air pollution.
Claims
exact text as granted — not AI-modified1 - 13 . (canceled)
14 . An emissions exhaust filtering system for an exhaust pipe for an on or off-road engine comprising:
a plurality of filter sections (sectionals), wherein the plurality of filter sections includes at least one of a ball filter section, a cone filter section, a grid filter section, and a double cone filter section; and a filter cap.
15 . The filtering system of claim 14 , wherein the plurality of filter sections are interchangeable (re-arrangeable).
16 . The filtering system of claim 15 , wherein the plurality of filter sections comprise opposing threads.
17 . The filtering system of claim 14 , wherein at least one of the plurality of filter sections comprises a screen.
18 . The filtering system of claim 17 , wherein the screen comprises a wash-coat adapted to react to one or more exhaust vapors.
19 . The filtering system of claim 14 , wherein the plurality of filter sections comprises the ball filter section and the ball filter section includes a ball filter, wherein the ball filter includes a core and an outer layer.
20 . The filtering system of claim 19 , wherein the outer layer comprises a surface having a plurality of spherically shaped indentions recessed into the outer layer.
21 . The filtering system of claim 14 , wherein the plurality of filter sections comprises the cone filter section and the cone filter section includes a cone filter, wherein the cone filter includes a filter stack comprising one or more layers to form a gas permeable layer that allows liquid to traverse the cone filter 92 in a single direction.
22 . The filtering system of claim 21 , wherein the filter stack comprises an inner cone layer, an outer cone layer, and a membrane therebetween.
23 . The filtering system of claim 22 , wherein at least one of the inner cone layer and the outer cone layer includes a plurality of openings to expose the membrane
24 . The filtering system of claim 21 , wherein the cone filter section includes a cone filter section outer housing, and the cone filter section outer housing and the cone filter define a void therebetween, and the void includes a chemical & fluid-based mixture containing a biological absorbent.
25 . The filtering system of claim 24 , wherein the biological absorbent is at least one an algae and/or a nitrogen-fixing bacteria.
26 . The filtering system of claim 21 , wherein the cone filter includes an upper filter section and a lower filter section and the upper filter section and the lower filter section have different angles with respect to a center axis of the cone filter.
27 . The filtering system of claim 14 , wherein the plurality of filter sections comprises the grid filter section and the grid filter section includes a plurality of elongated tubes.
28 . The filtering system of claim 27 , wherein the elongated tubes have a cross sectional shape of a quadrilateral, a square, or a rectangle.
29 . The filtering system of claim 27 , wherein one or more of the elongated tubes include a wash-coat on an inside of the one or more elongated tubes.
30 . The filtering system of claim 14 , wherein the plurality of filter sections comprises the double cone filter section and the double cone filter section includes at least one cone set each having an upper cone and a lower cone, each upper cone including an upper cone wide upper end and an upper cone narrow lower end such that the upper cone wide upper end has a larger radius than the upper cone narrow lower end, each lower cone including a lower cone narrow upper end and a lower end wide lower end such that the lower cone wide lower end has a larger radius than the lower cone narrow lower end.
31 . The filtering system of claim 30 , wherein the double cone filter section further comprises a screen between the upper cone and the lower cone.
32 . The filtering system of claim 31 , wherein the screen comprises a wash-coat.
33 . The filtering system of claim 30 , wherein the double cone filter section comprises a plurality of cone sets.Join the waitlist — get patent alerts
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