Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.


  1. Búsqueda avanzada de patentes
Número de publicaciónUS1387 A
Tipo de publicaciónConcesión
Fecha de publicación31 Oct 1839
Número de publicaciónUS 1387 A, US 1387A, US-A-1387, US1387 A, US1387A
InventoresStjmner King
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Elliptical spring for carriages
US 1387 A
Resumen  disponible en
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)



No. 1,387. Patented Oct. 31. 1839.

mJmuro-uinm coimmwsaunuz's muss) UNITED STATES PATENT OFFICE.



Specification of Letters Patent No. 1,387, dated October 31, 1889.

To all whom it may concern:

Be it known that I, SUMNER KING, of Sufiield, Hartford county, State of Connecticut, have invented a new and useful improvement in the Construction of Carriage- Springs, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l is a side View of an elliptic spring. Fig. 2 is a section showing the transverse convexity of the leaves.

The nature of this invention consists in making the leaves of springs convex or concave transversely instead of fiat by which formation they are rendered much stronger than the common springs. The greatest convexity or concavity is in the center and decreases gradually toward the ends when the leaves are made flat for a proper union of the same.

Vhat I claim as my invention and desire to secure by Letters Patent consists in- Making the leaves of springs convex or concave transversely as before described, gradually diminishing from the center toward the ends.

SUMNER KING. WVitnesses:


Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US20020083075 *5 Dic 200127 Jun 2002Tony BrummelSystem and method for a seamless user interface for an integrated electronic health care information system
US20020165898 *4 Abr 20027 Nov 2002Joe DuffyRecipient-determined method for sharing tasks in an advanced electronic messaging/workflow system
US20040059714 *31 Jul 200325 Mar 2004Larsen Steven J.System and method for providing decision support to appointment schedulers in a healthcare setting
US20050071194 *5 Mar 200431 Mar 2005Bormann Daniel S.System and method for providing patient record synchronization in a healthcare setting
US20050071195 *8 Mar 200431 Mar 2005Cassel David A.System and method of synchronizing data sets across distributed systems
US20060080140 *9 Oct 200413 Abr 2006Epic Systems CorporationSystem and method for providing a clinical summary of patient information in various health care settings