US 11,052,712 B2
Tire pressure indicating device
Primo Antonio Colussi, Santa Fe (AR); and Natalio Domingo Venica, Santa Fe (AR)
Assigned to COL-VEN S.A., Santa Fe (AR)
Filed by Primo Antonio Colussi, Santa Fe (AR); and Natalio Domingo Venica, Santa Fe (AR)
Filed on Jun. 29, 2018, as Appl. No. 16/23,285.
Claims priority of application No. 201800100805 (AR), filed on Apr. 3, 2018.
Prior Publication US 2019/0299726 A1, Oct. 3, 2019
Int. Cl. B60C 23/04 (2006.01); B60C 29/00 (2006.01); B60C 23/00 (2006.01)
CPC B60C 29/005 (2013.01) [B60C 23/003 (2013.01); B60C 23/0496 (2013.01); B60C 23/0405 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An inflation viewing device comprising:
at least a main body which is externally provided with at least one translucent viewing portion and internally provided with at least a one-way air path assembly,
at least one air entrance connector being operatively connected to an external air source and to a first end of said main body, and
at least an air exit connector being connected to a second, opposed end of the main body and to at least one inflation valve,
said main body having an inner passage wherein the one-way air path assembly is arranged,
a guide spacer provided between said air entrance connector and the main body, said guide spacer having an inner passage which has a wider section that is in communication with the inner passage of the main body and a reduced section that defines a communication opening with the air entrance connector,
said one-way air path assembly having a communication opening of the inner passage of the guide spacer, at least one filter disposed in the communication opening, at least one slidably guided plunger slidably disposed within the inner passage of the guide spacer and guide section of the inner passage of the main body, and at least one spring being held between the plunger and said seat of the main body, and
a first end and a second end of said plunger comprise respective expansible fingers which are separated between each other, defining air circulation channels or pathways.