Patents by Inventor Bengt Grahn

Bengt Grahn 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: 10161157
    Abstract: A tent frame (1) for carrying a tent cloth comprises at least four rods (2) each configured to have one end (3a) resting on a ground, to extend from that end convergingly towards a top of a said tent and to carry a tent cloth bearing outside thereon, and an arrangement (6) configured to interconnect said rods (2) so as to hold them in a determined mutual position. Said arrangement (6) comprises, for each pair of adjacent rods (2a-b), at least one rigid elongated element (7) and at least two elongated members so as to provide support for holding said rigid elongated element (7) between the adjacent rods (2a-b) and these in a said determined mutual position.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: December 25, 2018
    Assignee: Tentipi AB
    Inventor: Bengt Grahn
  • Publication number: 20170247904
    Abstract: A tent frame (1) for carrying a tent cloth comprises at least four rods (2) each configured to have one end (3a) resting on a ground, to extend from that end convergingly towards a top of a said tent and to carry a tent cloth bearing outside thereon, and an arrangement (6) configured to interconnect said rods (2) so as to hold them in a determined mutual position. Said arrangement (6) comprises, for each pair of adjacent rods (2a-b), at least one rigid elongated element (7) and at least two elongated members so as to provide support for holding said rigid elongated element (7) between the adjacent rods (2a-b) and these in a said determined mutual position.
    Type: Application
    Filed: September 23, 2014
    Publication date: August 31, 2017
    Applicant: Tentipi AB
    Inventor: Bengt GRAHN
  • Patent number: 9631394
    Abstract: A tent frame for carrying a tent cloth has at least five rods (2) each configured to have one end (3) resting on a ground, to extend from that end divergingly towards a top (4) of the tent and carry a tent cloth bearing outside thereon, as well as an arrangement configured to interconnect the rods to hold them in a determined mutual position. This arrangement has non-stretching elements (8) interconnecting every second rod in the circumferential direction of the frame as seen from above so that each rod will be internally passed by an element interconnecting the two adjacent rods on both sides thereof.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: April 25, 2017
    Assignee: Tentipi AB
    Inventor: Bengt Grahn
  • Publication number: 20160230409
    Abstract: A tent frame for carrying a tent cloth comprises at least five rods (2) each configured to have one end (3) resting on a ground, to extend from that end divergingly towards a top (4) of a said tent and to carry a tent cloth bearing outside thereon, as well as an arrangement configured to inter-connect said rod so as to hold them in a determined mutual position. This arrangement comprises non-stretching elements (8) interconnecting every second said rod in the circumferential direction of said frame as seen from above so that each said rod will be internally passed by a said element inter-connecting the two adjacent rods on both sides thereof.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 11, 2016
    Applicant: TENTIPI AB
    Inventor: Bengt Grahn
  • Patent number: 5836331
    Abstract: A ventilation device for tents with at least one roof top (8) and a place for an open fire under this roof top, the tent cloth (4) having an upper boundary (12) at a distance below the apex of this roof top, so that an opening (9) for discharging flue gases coming from a fire is formed at the roof top, comprises a net (10) substantially impervious to insects, which is arranged in said flue gas opening (9) so as to prevent insects from getting into the tent through this opening. The insects net is movably arranged with respect to the frame work of the tent and the device further comprises an arrangement (14, 15, 18) for regulating the degree of the coverage of the flue gas opening by the insects net between a first position substantially entirely covering it and at least a position in which the flue gas opening is at least partially set free.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: November 17, 1998
    Inventor: Bengt Grahn
  • Patent number: 5439016
    Abstract: A substantially cone-shaped tent comprises a plurality of rods connected to each other in the region of the top of the tent and arranged to extend divergingly downwardly to the ground on which the tent stands and bear thereagainst while each forming substantially a generatrix of an imagined cone, a substantially cone-shaped tent cloth adapted to bear on the outside of and be carried by the rods, and means adapted to interconnect adjacent rods at a distance from the top of the tent so as to hold them in a determined mutual position. Said interconnecting means comprise elongated rigid elements with a first engaging member at each end thereof, and the rods have second engaging members arranged to enter into engagement with the first engaging members arranged on the corresponding rigid elements when connecting adjacent rods by means of the rigid elements and by that hold two adjacent rods at a mutual distance defined by the rigid element.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: August 8, 1995
    Inventor: Bengt Grahn
  • Patent number: D994818
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: August 8, 2023
    Assignee: Tentipi AB
    Inventor: Bengt Grahn
  • Patent number: D1023211
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: April 16, 2024
    Assignee: Tentipi AB
    Inventor: Bengt Grahn