Patents by Inventor Daniel E. Smith

Daniel E. Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5025551
    Abstract: A method of making a lead-acid battery includes providing continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock with optional use of end separators. The separators, positive plates and negative plates are individually severed from the continuous length of stock and sequentially formed into an assembly. The assembly is introduced into a battery cell container. A plurality of assemblies may be established prior to introduction into the battery cell container. In a preferred embodiment, the assembly zone moves relative to the cutting stations for the respective continuous lengths of stock and facilitates sequential establishment of the assembly without intermediate storage of the individual separators and elements.The apparatus includes equipment for supplying continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: June 25, 1991
    Assignee: Sealed Energy Systems, Inc.
    Inventors: Michael V. Rose, Daniel E. Smith
  • Patent number: 5026356
    Abstract: Hypodermic syringes with accompanying hypodermic syringe needles may readily utilize the disclosed safety device to achieve less operator risk of needle stick injury and less risk of body fluid contamination. In the preferred embodiment the safety device, which can be releasably affixed to the barrel of a hypodermic syringe having an attached hypodermic syringe needle, has a channel-like member that houses a forwardly movable, generally L-shaped member and a rocker spring. After injecting substances into or withdrawing body fluids from a human being or an animal, the L-shaped member is pushed forwardly somewhat beyond the tip of the hypodermic syringe needle. The downwardly action of the rocker spring cooperating with the design features of the L-shaped member causes the L-shaped member to move downwardly past the tip of the hypodermic syringe needle and then rearwardly so that the tip of the hypodermic syringe needle becomes embedded into the L-shaped member.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: June 25, 1991
    Inventor: Daniel E. Smith
  • Patent number: 4973335
    Abstract: A method of making a lead-acid battery includes providing continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock with optional use of end separators. The separators, positive plates and negative plates are individually severed from the continuous length of stock and sequentially formed into an assembly. The assembly is introduced into a battery cell container. A plurality of assemblies may be established prior to introduction into the battery cell container. In a preferred embodiment, the assembly zone moves relative to the cutting stations for the respective continuous lengths of stock and facilitates sequential establishment of the assembly without intermediate storage of the individual separators and elements.The apparatus includes equipment for supplying continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: November 27, 1990
    Assignee: Sealed Energy Systems, Inc.
    Inventors: Michael V. Rose, Daniel E. Smith
  • Patent number: 4729398
    Abstract: In a current-to-pressure (I/P) transducer which controls output pressures by rapidly and precisely venting pressures of fluid derived from a supply, the movable valve member employed in the venting comprises a mechanically-balanced low-mass armature suspended for restrained pivotal movements by a taut band and incorporating readily-saturated magnetic material disposed in gap-bridging relation to core elements of a stationary electromagnet; the counterbalancing and taut-band suspension of but a small mass renders the armature highly resistant to adverse effects of vibration, and selectable positioning of the venting-valve seat or port to cooperate with one or the other end of the pivoted armature allows for direct or inverse responses to currents fed to the electromagnet.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: March 8, 1988
    Assignee: Bellofram Corp.
    Inventors: Richard A. Benson, Daniel E. Smith