Patents by Inventor William E. Sagstetter

William E. Sagstetter 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: 4973101
    Abstract: An add-on collapsible sleeping shelter which is mounted on a motor vehicle. The shelter consists of a hinged shell and a mating seal ring which is bolted to the vehicle roof. Integral to this shelter is a hinged bed-board which when raised angularly provides additional headroom and in the lower position provides ingress to and egress from a ready made bed with all bedding material intact. The underside of said bed-board provides a ceiling for the inside of motor vehicle. Flexible canvas-like wall material is attached to the shell and to the seal ring and unfolds to an enclosing position as the shell angularly moves upward to its extended position. Lifting devices, hinges, tension latches, and a molded trim ring are provided to conceal mounting hardware and exposed edge of vehicle roof.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: November 27, 1990
    Inventors: William E. Sagstetter, Stephen L. Kishel
  • Patent number: 4938745
    Abstract: A non-rotatable axially translatable anterior guard includes a detachable tab for creating an aperture to exteriorize and expose, upon posterior translation along a single or double ended needle supporting hub, the anterior end of the needle ready for use. Upon anterior translation of the anterior guard, it lockingly engages the hub to retain the needle therein. An aperture extends through the hub, which aperture is uncovered only upon locking engagement of the guard, to provide a visually perceivable unambiguous indication that the guard is locked to envelope the anterior end of the needle after use.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: July 3, 1990
    Inventor: William E. Sagstetter
  • Patent number: 4878902
    Abstract: A non-rotatable axially translatable anterior guard exposes, upon posterior translation along a needle supporting hub, the anterior end of the needle ready for use. Upon anterior translation of the anterior guard, it lockingly engages the hub to retain the needle therein. A detachable tab creates an aperture in the anterior guard for exteriorizing the needle and upon attachment seals the aperture to isolate within the anterior guard, in combination with the fit between the hub and the anterior sleeve, any body substances remaining with the needle after use. A removable posterior guard encloses the posterior end of the hub to receivingly retain any body substances remaining therewith after use of the needle. The anterior and posterior guards, in combination with sealing tape, permit sterilizing the needle prior to use and isolating there within any body substances after use.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: November 7, 1989
    Inventors: Alan A. Wanderer, William E. Sagstetter
  • Patent number: 4850961
    Abstract: An indwelling placement device having an introducing needle and a catheter for infusing fluids into a blood vessel incorporates a guard for shielding the needle prior to extension from therewithin and for receiving the needle upon retraction thereinto to preclude an operator inadvertently contacting the needle after use. Once retracted, the needle cannot be extended from within the guard. Upon retraction of the needle into the guard, a button mates with the open end of a hollow hub of the needle to prevent outflow of residual blood therefrom. A valve is incorporated with the catheter to preclude blood outflow from the catheter upon withdrawal of the needle and prior to attachment of an intravenous line for conveying a fluid to be intravenously administered.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: July 25, 1989
    Inventors: Alan A. Wanderer, William E. Sagstetter
  • Patent number: 4731059
    Abstract: This invention relates to a combination needle shield/needle guard device that is positively locked onto detachable needle assemblies for an evacuated blood collection system and for a hypodermic syringe. More particularly, this invention can: (1) function as a needle shield to enclose and prevent contamination of the sterile needle to be used for a medical procedure; (2) function as a needle guard which can slide on a length extension for either needle assembly, such that the needle can be uncovered or re-covered in a direction from behind the needle point, thereby providing a safety feature for the operator who can avoid direct contact with a used, blood-contaminated needle point. Avoidance of direct contact with used needle points will reduce the likelihood of contracting blood-borne infections such as AIDS, infectious hepatitis, syphilis etc.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: March 15, 1988
    Assignee: Medical Safety Products, Inc.
    Inventors: Alan A. Wanderer, William E. Sagstetter
  • Patent number: 4693708
    Abstract: This invention relates to a combination needle shield/needle guard device for a hypodermic syringe with a needle permanently attached to the front end of the syringe barrel. This needle shield/needle guard device is positively locked to the syringe barrel and can perform two functions: first, function as a needle shield which encloses and prevents contamination of a sterile needle and secondly, function as a needle guard which can slide on the surface of the syringe barrel, such that the needle can be uncovered and re-covered from behind the needle point, thereby providing a safety feature in that medical personnel can avoid direct contact with a needle point during the process of uncovering or re-covering the needle. More particularly, an unused sterile hypodermic needle is enclosed within the needle shield/needle guard device which protects the needle from contamination.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: September 15, 1987
    Inventors: Alan A. Wanderer, William E. Sagstetter
  • Patent number: 4664653
    Abstract: One step manually activated injection apparatus capable of injecting multiple pre-measured doses of liquid medicaments without visibility of needle. It is composed of cylindrical housing unit with small aperture at bottom and removeable manual plunger unit at the top, and within housing unit there is a syringe unit composed of a piston, ampule with pre-measured liquid medicament, needle covered with sterile sheath and clip apparatus attached onto the ampule. The injection apparatus is placed in ready position by contacting the bottom of housing unit against a skin surface. One forward manual push on manual plunger unit performs two distinct functions. First, the manual plunger unit engages the clip apparatus attached to syringe ampule, permitting forward movement of syringe unit within housing unit, allowing needle to pierce sheath and pass externally through aperture of housing unit without visibility into the skin.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 12, 1987
    Inventors: William E. Sagstetter, Alan A. Wanderer