Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Heinrich Kumpf
Heinrich Spiegel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB189718620ApublicationCriticalpatent/GB189718620A/en
18,620. Kumpf, H., and Spiegel, H. Aug. 11. Tyres, pneumatic &c., preventing puncture of. A spiral spring b made of steel or other elastic material is placed between the air tube a and the outer cover c. Instead of air, a liquid may be used to inflate the tyre.
GB189718620D1897-08-111897-08-11Improvements in or applicable to Tyrees for Vehicles.
ExpiredGB189718620A
(en)