Pressure relief device for an inflatable tire
First Claim
1. A pressure relief device for an inflatable tire, comprising:
- a body having a chamber therein and defining a circumferential outer surface portion;
an inflation valve arranged in the body;
an overpressure valve arranged in the body for releasing air when the air pressure in the chamber exceeds a first predetermined pressure level, said overpressure valve comprising;
at least one air conduit extending from said chamber through the body to said circumferential outer surface portion;
a ring-shaped resilient member which is contractively fitted around the circumferential outer surface portion, so as to keep the air conduit in a normally closed state;
the properties and dimensions of the resilient member being such that it is stretched when the air pressure in the chamber exceeds the first predetermined pressure level, so as to provide an air passage from the conduit to an exterior environment wherein a bottom portion of the body defines a cavity for receiving a valve of the tire centrally within the body, the cavity defining a threaded portion for screwing the device onto a threaded portion of a tire valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A pressure relief device (100; 200, 300; 400; 400) for an inflatable tire comprises a body (102; 202; 302; 402; 502) having a chamber (124; 228; 324; 424; 524) with an inflation valve arranged in the body. An overpressure valve in the body releases air when the air pressure in the chamber exceeds a predetermined threshold pressure level. The overpressure valve includes at least one air conduit (128; 228; 328; 428; 528) extending from the chamber through the body in order to provide a passage to a surrounding atmosphere. A ring-shaped resilient member (130; 230; 330; 420; 530) is contractively fitted around an outer surface portion of the body, so as to keep the air conduit in a normally closed state. The properties and dimension of the resilient member are such that it is stretched when the air pressure in the chamber exceeds the predetermined pressure level, so as to provide an air passage from the conduit to the surrounding atmosphere. A plurality of pressure relief devices may be included in a kit, wherein the devices define different predetermined pressure levels.
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Citations
20 Claims
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1. A pressure relief device for an inflatable tire, comprising:
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a body having a chamber therein and defining a circumferential outer surface portion;
an inflation valve arranged in the body;
an overpressure valve arranged in the body for releasing air when the air pressure in the chamber exceeds a first predetermined pressure level, said overpressure valve comprising;
at least one air conduit extending from said chamber through the body to said circumferential outer surface portion;
a ring-shaped resilient member which is contractively fitted around the circumferential outer surface portion, so as to keep the air conduit in a normally closed state;
the properties and dimensions of the resilient member being such that it is stretched when the air pressure in the chamber exceeds the first predetermined pressure level, so as to provide an air passage from the conduit to an exterior environment wherein a bottom portion of the body defines a cavity for receiving a valve of the tire centrally within the body, the cavity defining a threaded portion for screwing the device onto a threaded portion of a tire valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification