公开(公告)号：US1229110A

公开(公告)日：1917-06-05

申请号：US3243615

申请日：1915-06-05

Applicant: MCMEEKIN BOWMAN M ,  DOWNS HARRY N

Inventor： MCMEEKIN BOWMAN M ,  DOWNS HARRY N

CPC classification number: B60T11/103 ,  Y10T477/873

公开(公告)号：US3828702A

公开(公告)日：1974-08-13

申请号：US25382372

申请日：1972-05-16

Applicant: BOWMAN M

Inventor： BOWMAN D

IPC: A01B49/06 ,  A01C7/00 ,  A01C5/00

CPC classification number: A01C7/00 ,  A01B49/06 ,  Y10S111/911

Abstract: A farm implement particularly adapted for rice farming for increasing the productivity of rice fields by allowing the cultivation of land immediately adjacent the levees in a rice field. The implement includes a frame adapted to be connected to a tractor and mounts, from front to rear, a disc gang, a seeder and a harrow. The disc gang is arranged so that one end thereof is lower than the other end thereof to fill the furrows customarily generated during the formation of levees so as to allow seeding by the seeder and smoothing by the harrow, all in a single pass of the implement.

Abstract translation: 一个特别适用于水稻种植的农场，通过允许在稻田附近种植土地，提高稻田的生产力。 该工具包括适于连接到拖拉机并且从前到后安装盘组，播种机和耙的框架。 圆盘组的布置使得其一端低于其另一端以填充在堤坝形成期间通常产生的沟槽，以便允许播种机播种并由耙子平滑，全部在工具的单程中 。

公开(公告)号：US3785994A

公开(公告)日：1974-01-15

申请号：US3785994D

申请日：1960-09-23

Applicant: BOWMAN M ,  VIER D

Inventor： BOWMAN M ,  VIER D

IPC: C04B35/52 ,  C04B41/50 ,  C04B41/87 ,  G21C5/02 ,  G21C15/08 ,  C01B2/00 ,  C23C13/02

CPC classification number: C04B35/522 ,  C04B35/52 ,  C04B41/009 ,  C04B41/5057 ,  C04B41/87 ,  G21C5/02 ,  G21C15/08 ,  Y02E30/40 ,  C04B41/4529 ,  C04B41/4556

Abstract: A GASEOUS MIXTURE OF HYDROGEN, HYDROGEN CHLORIDE, AND A CHLORIDE OF TITANIUM, ZIRCONIUM OR NIOBIUM, WHICH PROVIDES PROTECTION FOR GRAPHITE SURFACES FROM HYDROGEN CORROSION AT TEMPERATURES GREATER THAN 1500*C. THE COMPOSITION OF THE MIXTURE IS SUCH THAT THE METAL CHLORIDE AND HYDROGEN REACT WITH GRAPHITE TO FORM A PROTECTIVE METAL CARBIDE LAYER.